RYAN JOSEPH DUFF MD
NPI 1043802929
Internal Medicine in San Antonio, TX

Q: What is Ryan Duff's NPI number?

The NPI number for Ryan Duff is 1043802929. It was assigned to this individual provider in the NPPES registry on February 11, 2021.

Q: What is Ryan Duff's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Ryan Duff was last updated on June 19, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since February 11, 2021PECOS Enrolled

3551 ROGER BROOKE DR, SAN ANTONIO, TX 78234(210) 916-2153(210) 916-0709 Get Directions Write a Review

NPPES record last updated: June 19, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 3, 2025, Jul 8, 2024, Nov 7, 2022 and 1 more (4 updates tracked since 2021).

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About Ryan Joseph Duff Md NPPES

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

RYAN JOSEPH DUFF MD (NPI 1043802929) is an individual internal medicine provider in San Antonio, Texas, licensed in Missouri (2022041862) and active in the NPI registry since February 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1043802929

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameRYAN JOSEPH DUFFCredential: MD

Location Address3551 ROGER BROOKE DRSan Antonio, TX 78234-4504

Mailing Address3551 Roger Brooke DrJbsa Ft Sam Houston, TX 78234-4504 · (210) 916-2153 · Fax (210) 916-0709

Phone(210) 916-2153

Fax(210) 916-0709

Sole ProprietorNo

Enumeration DateFebruary 11, 2021

Last NPPES UpdateJune 19, 20264 updates tracked since enumeration

NPPES CertifiedJune 19, 2026

✔ NPI 1043802929 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in MO · 2022041862

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedGeneral PracticeTaxonomy 208D00000X · License 2022041862 (MO)

3551 ROGER BROOKE DR, San Antonio, TX 78234

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ryan Joseph Duff 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 78234 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.

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