3 Best Endocrinologists in Brownsville, TX

Expert-recommended Top 3 Endocrinologists in Brownsville, Texas. All of our endocrinologists actually face a rigorous 50-Point Inspection, which includes customer reviews, history, complaints, ratings, satisfaction, trust, cost and general excellence. You deserve only the best!

Willie Teo Ong, MD - Brownsville, TX Endocrinologists - Doctor Portrait Image
10+ YEARS IN TBR
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WILLIE TEO ONG, MD

844 Central Boulevard, Suite 280,
Brownsville, TX 78520 Directions

Since 1989

Specialty:

Lipid Disorders Osteoporosis Type 1 and 2 Steroid-induced Gestational Diabetes Addison Cushing Disease Adrenal Glands Hormones Fatigue Hyperthyroidism Metabolic Syndrome Addison/Cushing Disease Acromegaly Hypopituitarism Hypothyroidism Graves’ Disease Hashimoto’s Disease Pituitary Disorders High Blood Pressure (Hypertension)

"Dr. Willie Teo Ong received his medical degree from the University of the East-Ramon Magsaysay Memorial Medical Center and completed his residency at the Berkshire Medical Center-University of Massachusetts. Dr. Willie Teo has over 36 years of experience in the medical field. Dr. Willie specializes in treating a broad spectrum of endocrine disorders. Before beginning any treatment, he carefully listens to his patients and takes the time to fully understand their needs and concerns. He is fluent in English, Spanish, and Tagalog and is associated with Valley Baptist Medical Center Brownsville.

2026 Highlights: Dr. Teo Ong has been recognized with CMS Meaningful Use Stage 1 and 2 Certifications from eClinicalWorks."

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License #K1094

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Ranjana Sarma, MD - Brownsville, TX Endocrinologists - Doctor Portrait Image
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RANJANA SARMA, MD

844 Central Boulevard, Suite 330,
Brownsville, TX 78520 Directions

Since 2006

Specialty:

Pediatric Endocrine Disorders Diabetes Metabolic Disorders Graves’ Disease Hashimoto’s Disease Pituitary Disorders Osteoporosis Thyroid Disorders Growth Hormone Deficiencies

"Dr. Ranjana Sarma completed her Residency at Driscoll Children's Hospital. Dr. Ranjana Sarma completed a pediatric Fellowship at the University of Florida College of Medicine. She holds Board Certifications from the American Board of Medical Specialties in Pediatrics and Pediatric Endocrinology. Dr. Sarma has comprehensive experience in Thyroid disorders. Dr. Ranjana Sarma is affiliated with Rio Grande Regional Hospital and Valley Regional Medical Center. She is accepting new patients. She offers flexible and telehealth appointments.

2026 Highlights: Dr Ranjana Sarma provides detailed counseling about diet and diabetes. She speaks English and Spanish."

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License #P8406

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Syed A. Hassan, MD - Brownsville, TX Endocrinologists - Doctor Portrait Image
3+ YEARS IN TBR
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SYED A. HASSAN, MD

DIABETES & ENDOCRINOLOGIST CLINIC OF SOUTH TEXAS
3761 E Ruben M Torres Boulevard,
Brownsville, TX 78526 Directions

Since 2010

Specialty:

Testosterone Hypothyroidism Osteoporosis Diabetes Type 1 and Type 2 Thyroid Parathyroid Disorders Obesity Other Hormonal Disorders

"Dr. Syed A. Hassan is an internal medicine specialist in Brownsville, TX. He specializes in Endocrinology, Diabetes, and Metabolism. Dr. Hassan completed his medical degree at Khyber Medical College. He is affiliated with Valley Regional Medical Center. His office accepts new patients. He accepts all major insurance plans. After reviewing the test results, he initiates the appropriate treatment plan. In addition, he provides dietary recommendations and follows up with patients to ensure they are adhering to their prescribed diet plan.

2026 Highlights: Dr. Syed A. Hassan creates a comfortable environment for his patients to express their health concerns and recommends basic tests if necessary."

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License #R3337

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(956) 230-4971

Tue & Fri: 8am - 5pm
Mon, Wed, Thu, Sat & Sun: Closed

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