RALPH A DEFRONZO MD
NPI 1851408843
Internal Medicine - Endocrinology, Diabetes & Metabolism in San Antonio, TX

Q: What is Ralph Defronzo's NPI number?

The NPI number for Ralph Defronzo is 1851408843. It was assigned to this individual provider in the NPPES registry on August 24, 2006.

Q: What is Ralph Defronzo's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Q: When was this NPI record last updated?

The NPPES record for Ralph Defronzo was last updated on May 2, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 24, 2006PECOS Enrolled

701 S ZARZAMORA ST, SAN ANTONIO, TX 78207(210) 358-7500(210) 358-7515 Get Directions Write a Review

NPPES record last updated: May 2, 2011. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Ralph A Defronzo Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RALPH A DEFRONZO MD (NPI 1851408843) is an individual endocrinology, diabetes & metabolism provider in San Antonio, Texas, licensed in Texas (H7531) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851408843

Entity TypeIndividualMale

Primary Taxonomy207RE0101X

Provider Legal NameRALPH A DEFRONZOCredential: MD

Location Address701 S ZARZAMORA STSan Antonio, TX 78207-5209

Mailing Address7703 Floyd Curl Dr, Mc7977San Antonio, TX 78229-3901 · (210) 450-9000 · Fax (210) 450-4603

Phone(210) 358-7500

Fax(210) 358-7515

Sole ProprietorNo

Enumeration DateAugust 24, 2006

Last NPPES UpdateMay 2, 2011

✔ NPI 1851408843 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians

Taxonomy Code207RE0101X

License✔ Licensed in TX · H7531

Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

701 S ZARZAMORA ST, San Antonio, TX 78207

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Other Identifiers 2

Medicare PINTXB102869TX

Medicaid041218102TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc. and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ralph A Defronzo Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78207 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$126.40 typical visit price

range $54.84 – $166.88

Typical copayment $31.60 (range $13.71 – $41.72)

Most-billed visit code 99204

Established Patient

$97.05 typical visit price

range $17.52 – $136.11

Typical copayment $24.26 (range $4.38 – $34.02)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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