Endocrine Care Beyond the Scale
Specialized Endocrinology Care for Your Health Needs
Diabetes Care
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Obesity and Weight Management
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Thyroid Conditions
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Metabolic Disorders
Know More ⟶A Trusted Educational Resource for Our Patients
Managing Diabetes With Confidence
Specialized diabetes care from an endocrinologist covers type 1 diabetes, type 2 diabetes, and prediabetes — with a treatment plan built around your blood glucose patterns, not a generic protocol.
- Learn how glucose levels respond to your food, activity, and daily routine
- Get guidance on medications, insulin therapy, and glucose monitoring, including CGM
- Receive practical support for nutrition, physical activity, and long-term glucose control
- Follow-up visits let us adjust your care plan as your results change
- Protect your heart, kidneys, eyes, and nerves through proactive diabetes management
- Feel prepared and confident with clear, ongoing patient education
Medical Weight Management That Looks Beyond the Scale
- Understand how hormones, metabolism, and insulin resistance affect your weight
- Get an evaluation that looks at the causes, not just the number on the scale
- Track real progress with InBody 580 body composition testing
- Receive nutrition and activity guidance tailored to your health, not a generic diet
- Treatment is individualized based on clinical evaluation and adjusted over time
- Follow-up visits keep your program on track and responsive to your results
Thyroid Care Backed by Specialist Evaluation
- Learn how thyroid hormones influence your energy, weight, and mood
- Get thyroid lab testing and a clear explanation of what your results mean
- Receive a treatment plan individualized based on clinical evaluation
- Track thyroid nodules or Hashimoto’s disease with structured monitoring
- Understand your medication and why it was chosen for your case
- Feel confident asking questions at every follow-up visit
Advanced Muscle Mass and Body Composition Testing
InBody 580 body composition testing is part of our clinical evaluation process at EndoInnova, helping measure key markers such as muscle mass, body fat, visceral fat, and body water. It’s a complementary tool that gives your endocrinologist a clearer picture of your metabolic health than weight alone.
Look Beyond the Scale
Understand your body composition, not just your weight.
Track Progress Over Time
Track changes during weight loss, obesity care, or metabolic health progress.
Clear Muscle & Fat Insights
See your muscle mass, body fat, and body water balance more clearly.
Smarter Health Insights
Use body composition results to support more personalized, individualized care.
Comprehensive Obesity and Weight Management
Our endocrinologist-led weight-management program uses personalized, data-driven clinical strategies to evaluate the metabolic and hormonal factors behind your weight — helping you set realistic goals and improve your overall well-being, not just the number on the scale.
Advanced Muscle Mass and Body Composition Testing
“As an endocrinologist, my goal is to help patients understand their health, not just treat their condition. Through education and personalized care, I guide patients managing diabetes, obesity, thyroid concerns, and metabolic health challenges with more clarity and confidence. I’m also introducing InBody body composition testing so we can look beyond weight and better evaluate muscle mass, body fat, and overall progress.”
— Dr. Sheila S. Mercado Méndez, Endocrinologist
Personalized Endocrinology Care With a Clear Purpose
Specialized endocrinology care from a board-certified endocrinologist — combining patient education, individualized treatment, and InBody body composition testing to make decisions about your diabetes, thyroid, or metabolic health clearer and easier.
200+
Recovered patients
95%
Recovery Rate
24*7
Support System
- Personalized Care
Treatment plans tailored to your health needs, condition, lifestyle, and long-term metabolic health goals.
- Endocrine Expertise
Specialist support for diabetes, obesity, thyroid conditions, and metabolic disorders.
- Advanced Body Insight Tool
InBody testing helps measure muscle mass, body fat, and body composition beyond weight alone.
Affordable, Flexible
Diagnostic Packages
Clear, transparent pricing for InBody body composition studies — from a single test to interpretation-based assessments and cost-effective bundles. Whether you need a quick check-in or ongoing monitoring during a weight-management program, you can choose the option that fits your health goals and budget.
Individual Study
- Quick, focused evaluation of a specific health parameter.
- Affordable option for basic health screening.
- Helps identify key health insights early.
- Limited overview of overall health status
- May need additional tests for complete assessment
Individual Study + Interpretation & Recommendations
- Provides clear interpretation of test results by a healthcare professional.
- Helps patients understand what their results mean for their health.
- Offers personalized recommendations based on individual findings.
- Supports better decision-making for treatment and lifestyle changes.
- Gives more value than a standalone test through expert guidance.
Bundle of 3 Studies
- Offers better value compared to individual test bookings.
- Provides a more complete view of overall health status.
- Helps track multiple health parameters together for better insight.
- Supports more accurate clinical evaluation and follow-up planning.
- May include studies that are not immediately needed for all patients.
Bundle of 4 Studies
$ 125/monthly
- Provides a comprehensive view of overall health by assessing multiple key markers together for better understanding of body and metabolic status.
- Helps evaluate multiple health markers together for better accuracy, providing a more complete and reliable understanding of overall health status.
- Improves clinical decision-making by providing detailed insights that support more accurate evaluation and better-informed treatment planning.
- Offers better value compared to booking individual studies separately, making it a more cost-effective option for comprehensive health evaluation.
- Supports more complete tracking of long-term health progress, allowing better monitoring of changes over time and improved understanding of overall health trends.
3-Month Weight Handling Bundle Cost
$ 350/Quarterly
- 1 Initial Endocrinological Medical Evaluation followed by two follow-up visits to monitor progress, adjust treatment if needed, and support continuous health improvement.
- 3 InBody body composition analyses, performed monthly to track changes in muscle mass, body fat, and overall body composition throughout the 3-month program.
- Progress review is done at every visit to assess treatment response, monitor changes, and adjust care for continuous improvement.
- Recommendation of medical treatment is provided when indicated, based on clinical evaluation and progress, to ensure safe and personalized care.
- Treatment adjustments are made as needed based on your progress and clinical response to ensure effective and personalized care.
Frequently Asked
Questions
Answers to the questions patients ask most about diabetes, thyroid, obesity, and metabolic health care with an endocrinologist in Puerto Rico — including how InBody body composition testing fits into your care.
Who is the best endocrinologist in Puerto Rico for diabetes and weight loss?
There is no single “best” endocrinologist for every patient — the right fit depends on your condition, your language preference, and how the clinic structures follow-up care. What matters most is finding a board-certified endocrinologist who treats diabetes and weight together as connected, not separate, problems.
When comparing endocrinologists in Puerto Rico for diabetes and weight loss, start with board certification. A physician certified in diabetes and metabolism has completed specialized training beyond general internal medicine, focused specifically on blood glucose regulation, insulin therapy, and the hormonal drivers of weight.
Next, look at how the clinic evaluates obesity. A specialist who treats obesity as a complex chronic medical condition — assessing insulin resistance, thyroid function, and metabolic health rather than simply recommending a diet — is better positioned to build a plan individualized based on clinical evaluation.
Ask whether the clinic offers tools beyond a routine physical, such as continuous glucose monitoring (CGM), insulin-pump guidance, or InBody body composition testing, which tracks muscle mass and body fat rather than weight alone. These tools give both you and your physician more precise information to adjust treatment over time.
Finally, consider language and access. Bilingual care in English and Spanish removes a real barrier for many patients in Puerto Rico, and a clinic offering both in-person visits and WhatsApp communication makes ongoing follow-up easier to maintain.
Dra. Sheila S. Mercado Méndez, MD, is a board-certified endocrinologist in Diabetes and Metabolism practicing at EndoInnova in Hatillo, treating diabetes, obesity, thyroid conditions, and metabolic disorders for adults across Puerto Rico’s north coast. The right way to evaluate whether she — or any endocrinologist — is the right fit for you is a consultation where your history and goals are reviewed directly.
What does a board-certified endocrinologist in Puerto Rico treat?
A board-certified endocrinologist in Puerto Rico treats conditions involving hormones and metabolism, including type 1 and type 2 diabetes, prediabetes, thyroid disorders, obesity, insulin resistance, and other metabolic conditions. Board certification means the physician has completed specialized training and testing in this field beyond general medical practice.
At EndoInnova, care led by Dra. Sheila S. Mercado Méndez, MD, a board-certified endocrinologist in Diabetes and Metabolism, covers several connected areas of care.
For diabetes, this includes evaluation and management of type 1 diabetes, type 2 diabetes, and prediabetes, with support for insulin therapy, glucose monitoring, continuous glucose monitoring (CGM), and insulin-pump guidance.
For thyroid health, care includes hypothyroidism, hyperthyroidism, Hashimoto’s disease, and thyroid nodules, with laboratory testing and structured monitoring of your response to treatment.
For weight, EndoInnova provides medical obesity and weight-management care that treats obesity as a complex chronic medical condition, evaluating the hormonal and metabolic factors that influence your weight rather than treating it as a standalone lifestyle issue.
For broader metabolic concerns, care extends to insulin resistance, unexplained weight changes, and other hormonal and metabolic disorders that require specialist evaluation rather than a general checkup.
Many patients also add InBody 580 body composition testing to their evaluation, which measures muscle mass, body fat, visceral fat, and body water as a complementary tool alongside clinical assessment and lab work.
Because these systems affect one another — thyroid function influences weight, insulin resistance affects both glucose and weight, and so on — an endocrinologist is trained to evaluate them together rather than in isolation, which is the core reason patients seek specialist care instead of general practice management alone.
Where can I find a bilingual endocrinologist in Puerto Rico?
Bilingual endocrinology care in Puerto Rico means you can discuss your diagnosis, treatment options, and questions in either English or Spanish, whichever you’re more comfortable using. This matters because understanding your condition clearly, in your own language, directly affects how confidently you manage it day to day.
At EndoInnova in Hatillo, Dra. Sheila S. Mercado Méndez, MD provides consultations, patient education, and ongoing follow-up in both English and Spanish. This is especially relevant in endocrinology, where treatment plans often involve technical concepts — insulin dosing, thyroid lab values, glucose targets, body composition results — that are easier to act on when explained without a language barrier getting in the way.
Bilingual care is also useful for households where family members speak different primary languages. A parent may prefer Spanish while an adult child helping manage their care is more comfortable in English; being able to switch naturally between the two during a visit keeps everyone on the same page about the treatment plan.
Beyond the consultation itself, EndoInnova’s patient communication — including WhatsApp inquiries and online appointment requests — supports both languages, so you can ask a question or request an appointment in whichever language is easiest for you.
If you’re searching for a bilingual endocrinologist in Puerto Rico because you’ve struggled to fully understand a diagnosis or treatment plan explained only in one language, that’s a legitimate reason to seek a second opinion or switch physicians — clear communication is part of safe, effective endocrine care, not an optional extra.
To start, you can request an appointment online or send a WhatsApp message in English or Spanish, and our team will respond in the language you use.
Is there an endocrinology clinic near me if I live in Manatí, Arecibo, or Camuy?
Yes. EndoInnova is located in Carrizales, Hatillo, on Puerto Rico’s north coast, within reach of Manatí, Arecibo, Camuy, Quebradillas, and Barceloneta along the Route 2 corridor. Patients from all of these municipalities are seen regularly for diabetes, thyroid, obesity, and metabolic health evaluations.
Searching for an “endocrinology clinic near me” from any of these towns typically means you’re looking for specialist care without a long drive to a metropolitan hospital system. Hatillo sits centrally along the north coast, which is part of why patients from neighboring municipalities choose EndoInnova rather than traveling further east or south for the same level of specialist care.
For patients in Manatí, the clinic is a manageable drive west along the coast. For patients in Arecibo, Camuy, or Quebradillas, it’s typically a short trip in the opposite direction. Barceloneta patients are also within a comfortable range.
One advantage of choosing a single endocrinology clinic on the north coast rather than splitting care between a primary doctor and a distant specialist is continuity: your glucose logs, thyroid labs, weight-management progress, and any InBody body composition results all stay with one physician who is tracking the full picture over time, visit to visit.
If you’re unsure whether a trip to Hatillo is worth it compared to a closer general practice, consider that conditions like thyroid nodules, insulin resistance, and obesity often respond better to specialist evaluation than to general management alone, particularly when they’re not improving as expected.
You can request an appointment online or reach the clinic by phone or WhatsApp to ask about scheduling from your area before booking.
Can I see an endocrinologist in Hatillo without traveling far?
Yes. EndoInnova is based directly in Hatillo, at C. A Casa #4, Carrizales, Hatillo, PR 00659, so patients living in or near Hatillo do not need to travel to San Juan or another metropolitan area for specialist endocrinology care.
Hatillo residents searching for an endocrinologist locally are often trying to avoid the added time, traffic, and cost of a metro-area specialist visit, especially for a condition — like diabetes or thyroid disease — that requires regular, ongoing follow-up rather than a single appointment. Having a board-certified endocrinologist based in town makes that kind of consistent care realistic.
At EndoInnova, Dra. Sheila S. Mercado Méndez, MD provides evaluation and treatment for type 1 and type 2 diabetes, prediabetes, thyroid conditions such as hypothyroidism, hyperthyroidism, and Hashimoto’s disease, medical obesity and weight management, and broader metabolic and hormonal concerns, all from the Hatillo location.
Because many of these conditions require periodic monitoring — repeat labs, medication adjustments, or InBody body composition tracking — being able to return to a nearby, familiar clinic rather than re-establishing care elsewhere each time supports better long-term management. Missed or delayed follow-up is one of the more common reasons chronic conditions like diabetes and thyroid disease are harder to control, so proximity is not just a convenience, it’s a practical factor in the quality of your ongoing care.
The clinic also offers bilingual consultations in English and Spanish and supports WhatsApp communication, so Hatillo patients can ask a question or request an appointment without needing to call during business hours.
If you’re a Hatillo resident considering whether a local endocrinologist can meet your needs, the appropriate next step is a consultation to review your history and determine what evaluation or monitoring your condition requires.
Do you see patients traveling from San Juan or Bayamón?
Yes. While EndoInnova is based in Hatillo on Puerto Rico’s north coast, patients from the San Juan and Bayamón metropolitan area are welcome and do travel for care, often because they’re looking for a specific combination of services or a more personalized, less high-volume clinic environment than a large metro hospital system.
Patients coming from San Juan or Bayamón for an appointment at EndoInnova are typically looking for board-certified endocrinology care — diabetes, thyroid conditions, obesity and weight management, or metabolic health evaluation — combined with bilingual consultation in English and Spanish and a more direct line of communication with their physician, including WhatsApp for questions between visits.
Because the trip from the metro area is longer than a local visit, many patients plan to make the most of a single appointment. Some combine their consultation with an InBody body composition assessment, since that testing is available as part of the same visit and provides useful information for tracking weight, muscle mass, and metabolic progress alongside your clinical evaluation.
If you’re weighing a longer drive to Hatillo against a closer option in San Juan or Bayamón, it’s worth considering what matters most for your specific condition: continuity of care with one physician who reviews your full history at each visit, versus rotating providers at a larger system. For chronic conditions like diabetes and thyroid disease, many patients find that consistency outweighs convenience over time.
To plan a visit from San Juan, Bayamón, or elsewhere in the metro area, request an appointment online or contact the clinic directly to confirm timing.
Is EndoInnova accepting new patients in Puerto Rico?
EndoInnova welcomes new patients from across Puerto Rico, including those seeking care for diabetes, prediabetes, thyroid conditions, obesity, insulin resistance, and other metabolic concerns, as well as patients interested only in a standalone InBody body composition assessment.
Becoming a new patient typically starts with requesting an appointment online or reaching out by WhatsApp or phone with any questions before booking. This gives you a chance to briefly describe what brings you in — whether it’s an existing diagnosis, new symptoms, or a referral from another physician — so your first visit can be scheduled appropriately.
At your first appointment, Dra. Sheila S. Mercado Méndez, MD reviews your medical history, current medications, and any recent lab work or imaging you bring. From there, she builds a plan individualized based on clinical evaluation, which may include lab testing, InBody body composition analysis, or a referral for additional imaging if needed.
One detail worth knowing as a new patient: obesity, thyroid disease, and diabetes are often interconnected, so even if you’re booking for one specific concern, your evaluation may touch on related areas — for example, a patient coming in for weight management may also be screened for thyroid dysfunction or insulin resistance, since these frequently occur together.
If you’re ready to become a new patient, you can request an appointment through our online scheduling or send a WhatsApp message to +1 787-956-0909, and our team will confirm the next available date.
Can I get a same-week appointment with an endocrinologist in Puerto Rico?
Appointment availability with any endocrinologist in Puerto Rico depends on current patient volume, the reason for your visit, and whether you’re a new or returning patient — so a same-week appointment may be possible, but it isn’t something a clinic can promise for every request without confirming current scheduling.
Endocrinology, unlike some specialties, often involves conditions that benefit from prompt evaluation — newly diagnosed diabetes, sudden thyroid symptoms, or a significant unexplained weight change are reasonable reasons to ask about the earliest available slot rather than the standard next opening. If your situation feels urgent, say so directly when you request your appointment or send a WhatsApp message, so the clinic can prioritize scheduling appropriately.
At EndoInnova, the fastest way to check current availability is to request an appointment online or message the clinic directly at +1 787-956-0909. Because scheduling changes week to week, the clinic’s team can give you an accurate answer faster than any general estimate published on a website.
If timing is a concern before you book, it’s reasonable to ask directly: “Do you have any same-week openings for a new patient?” — the clinic’s WhatsApp line exists specifically so you can ask that kind of question before committing to a booking.
For symptoms that feel urgent or severe — such as signs of a diabetic emergency or a thyroid storm — contact emergency services rather than waiting for a scheduled appointment.
Who is Dr. Sheila Mercado and what makes her a trusted endocrinologist in Puerto Rico?
Dra. Sheila S. Mercado Méndez, MD is a board-certified endocrinologist in Diabetes and Metabolism and the physician behind EndoInnova, an endocrinology clinic in Hatillo, Puerto Rico. She treats adults with diabetes, thyroid conditions, obesity, insulin resistance, and other metabolic and hormonal concerns, consulting with patients in both English and Spanish.
What patients often describe as building trust in an endocrinologist isn’t a single credential — it’s a combination of specialist training, a clear communication style, and a treatment approach that explains the reasoning behind each decision rather than issuing instructions without context.
In her own words, Dr. Mercado’s approach centers on patient understanding: “My goal is to help patients understand their health, not just treat their condition. Through education and personalized care, I guide patients managing diabetes, obesity, thyroid concerns, and metabolic health challenges with more clarity and confidence.” This reflects a broader shift in endocrinology toward shared decision-making, where patients are active participants in managing chronic, long-term conditions rather than passive recipients of a prescription.
Her practice also reflects the reality that hormonal and metabolic conditions are connected. Rather than treating diabetes, thyroid disease, and weight as separate problems requiring separate specialists, she evaluates how they interact for each patient — which is part of what defines endocrinology as a distinct specialty from general internal medicine.
Dr. Mercado is also introducing InBody body composition testing at EndoInnova, a complementary tool that measures muscle mass, body fat, and body water, giving her a more complete picture of a patient’s progress than weight alone.
To consult with Dr. Mercado directly, request an appointment online or through the clinic’s WhatsApp line.
What's the difference between seeing an endocrinologist and a general doctor for diabetes and thyroid care?
A general doctor can diagnose and manage straightforward cases of diabetes or thyroid disease, but an endocrinologist has completed additional specialized training specifically in hormone and metabolic disorders, which becomes especially valuable when a case is complex, isn’t responding as expected, or involves more than one connected condition.
For diabetes, a diabetes and thyroid specialist can offer more advanced tools than a general practice typically provides, including continuous glucose monitoring (CGM) setup and interpretation, insulin-pump guidance, and closer titration of insulin or other medications based on detailed glucose patterns rather than periodic checkups alone.
For thyroid care, an endocrinologist is trained to evaluate thyroid nodules, distinguish between hypothyroidism, hyperthyroidism, and autoimmune conditions like Hashimoto’s disease, and interpret thyroid lab values in the context of your full hormonal picture — not just a single TSH result in isolation.
The distinction matters most when conditions overlap. Insulin resistance, thyroid dysfunction, and obesity frequently occur together, and a specialist is trained to look for these connections rather than treating each symptom independently. A patient with unexplained weight changes, for example, may need thyroid testing, glucose testing, and a broader metabolic evaluation together to identify the actual cause — something a single-issue visit with a general doctor may not fully capture.
At EndoInnova, this connected approach includes medical obesity and weight-management care that treats weight as a hormonally and metabolically influenced condition, alongside diabetes and thyroid management, all individualized based on clinical evaluation. InBody body composition testing is also being introduced as a complementary tool to track muscle mass, body fat, and body water alongside clinical results.
If your diabetes or thyroid condition isn’t improving with general management, or if you have more than one of these conditions at once, that’s typically a reasonable point to ask your primary doctor for a referral to an endocrinologist, or to request an appointment with one directly.
Patient Stories That Inspire Confidence
Real experiences from patients who value clear guidance, compassionate care, and a better understanding of their health.
I felt heard, respected, and well cared for. The education and guidance helped me feel more confident about managing my thyroid health.
The clinic made me feel supported from the start, with personalized care focused on long-term health.
Dr. Mercado takes the time to explain everything clearly. I finally feel like I understand my condition and know what steps I need to take.
Health Education Made Simple
Explore articles on diabetes, thyroid health, obesity, and metabolic health from your endocrinologist — written to help you understand your care, ask better questions, and make informed decisions with confidence.
Ready to Meet With an Endocrinologist in Puerto Rico?
Whether you’re managing diabetes, thyroid concerns, or curious about your body composition, a board-certified endocrinologist in Puerto Rico can help you understand what’s really going on beneath the scale. Our InBody body composition assessment, launching soon, will offer deeper insight into muscle, fat, and metabolic health. Book your appointment online in minutes, with virtual assistant support for a quick, hassle-free experience.
