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Thomas, Sunil Raj, MD




English, Malayalam

Providing the best care to our patients and their companions requires communicating in a way everyone understands. Interpreter services are available 24 hours a day, 7 days a week, 365 days a year. All spoken languages are available, as well as American Sign Language (AS/L).

Accepting New Patients
  • Endocrinology

Areas of Expertise
Adrenal Diseases, Calcium Metabolism, Diabetes Management, Glucose Monitoring Therapy, Insulin Pump Therapy, Men's Health, Metabolism Disorders, Osteoporosis, Parathyroid Disorders, Pituitary Diseases, Polycystic Ovary Syndrome (PCOS), Secondary Hypertension, Thyroid Diseases


Wayne State University, Henry Ford Hospital

Case Western Reserve at Metro Health Medical Center (OH)

Medical School
Kasturba Medical College

Case Western Reserve at Metro Health Medical Center (OH)

Professional Organizations

  • American Diabetes Association, Inc., Member
  • Endocrine Society, Member
  • American Association of Clinical Endocrinologists, Member
  • American College of Physicians, Member


Verified Patient Reviews

5 out of 5 stars

3 & 4. Will come with tests completed.

5 out of 5 stars

*Dr. Thomas was very difficult to understand.

5 out of 5 stars

Everyone was professional and pleasant

5 out of 5 stars

He took his time! Really appreciated that!! Lovely office more convenient for me to drive!

5 out of 5 stars

He was very thorough. He explained everything clearly. Gave me options/suggestions I felt heard.

5 out of 5 stars

Someone from Hartford HealthCare notified me _____ a dr. at office in N. Haven for me to see instead of driving further & waiting longer for initial appt. elsewhere. Everyone involved with the appt. made; Arriving, & seeing my dr. was very good *Dr. Thomas was thorough in asking questions, LISTENING, & giving feedback. Looking forward to be seen *Dr. Thomas again.

Other Reviews from Around the Web

5 out of 5 stars

I don’t know who Robert Grey is but my name is Janet. I can’t say enough about Dr Thomas. ALL GREAT!! He takes his time and explains everything throughly! He doesn’t rush you and he answers all your questions so you understand everything. A great doctor and I highly recommend Dr Thomas!


Aetna, Anthem, BCBS Medicare, CarePartners of Connecticut, Cigna Healthcare, Colonial Cooperative Care, Community Health Network of Connecticut, Inc., Connecticare, Connecticare Commercial, Connecticare Medicare, Corvel, Coventry, Essence Healthcare, Evercare, First Health Group Corp., Focus, Harvard Pilgrim, Health Connecticut, Health Direct, Health New England, Healthy Connecticut, HMC/ Northeast Healthcare, Medspan Commercial, Medspan Medicare, Multiplan, Northeast Health Direct, One Health Plan/ Great-West Healthcare, Oxford Health Plans, Prime Health Services, Private Health Care Systems, Inc., Senior Whole Health, United Healthcare, WellCare of Connecticut, Inc.

This information is subject to change at any time. Please check with your insurance provider before scheduling your appointment or receiving services to confirm they are a participating member of the Hartford HealthCare network.