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Dr. Ralph A. Defronzo, MD

Endocrinology, Diabetes & Metabolism

  • (210) 567-6706

Dr. Defronzo's Overview

Dr. Ralph A. Defronzo graduated from the Harvard Medical School in 1969. He works in San Antonio, TX and specializes in Endocrinology, Diabetes & Metabolism and Diabetes.

Dr. Defronzo's Experience

Years in Practice: 46

Procedures Performed by Dr. Defronzo

  • Not Available

Dr. Defronzo's Specialties

Endocrinology, Diabetes & Metabolism, Diabetes

Dr. Defronzo's Education & Training

Medical School: Harvard Medical School; Graduated 1969

Dr. Defronzo's Rating

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Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
  • View All Ratings

Dr. Defronzo's Accepted Insurance

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • BCBS TX BlueChoice
  • Great West PPO
  • Humana ChoiceCare Network PPO
  • Humana Preferred PPO
  • Multiplan PPO
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Dr. Defronzo's Office Information & Appointments

Office Locations

University Texas Health Science Center

7703 Floyd Curl Dr Mail Code 7870
San Antonio, TX 78229
(210) 567-6706


Office Hours and Information

Fax: (210) 567-4654

Practice Website: Not Available

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

Monday 8:00 AM - 5:00 PM
Tuesday 8:00 AM - 5:00 PM
Wednesday 8:00 AM - 5:00 PM
Thursday 8:00 AM - 5:00 PM
Friday 8:00 AM - 5:00 PM
Saturday Closed
Sunday Closed

Other Physicians in Dr. Defronzo's Practice

Dr. Defronzo's Hospital Affiliations

  • Not Available

Office Locations

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