NPPES file of Aug 9, 2026

Dennis Anthony Ruff, M.D.

Internal Medicine Physician · San Antonio, TX

Dennis Anthony Ruff, M.D. is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1003035718, issued on Apr 24, 2007. Check the license (Texas G9525, as entered in NPPES) on the Texas Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1003035718
Name
Dennis Anthony Ruff
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G9525 TX
Self-reported in NPPES; status is on the state search
Practice location
8307 Gault LN, San Antonio, TX 78209
Phone
(210) 798-5112
Enumerated
Apr 24, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →

Also registered at 8307 Gault LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Samantha San Miguel, MSN, APRN, FNP-CFamily Nurse Practitioner1932774064

Verify Dennis Anthony Ruff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license G9525    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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Dennis Anthony Ruff among 9,175 internal medicine physician records in Texas

Dennis Anthony Ruff, M.D. is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 50% newer
  • In a Medicare fileNo · 82% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2007 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

657 internal medicine physician records list a practice address in San Antonio

They are 657 of the 37,749 NPPES records with a practice address in San Antonio, and 9,175 internal medicine physician records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 9,175 in Texas → Every provider in San Antonio → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Karla Avila-Perez, MDSan Antonio, TX 782091124656442
  2. Heberto Garza, M.D.San Antonio, TX 782091487656427
  3. Dina Goytia-Leos, M.D.San Antonio, TX 782091275503526
  4. Elizabeth Lane, M.D.San Antonio, TX 782091649444035
  5. Melissa Medley, M.D.San Antonio, TX 782091750648895
  6. Uma Nair, M.D.San Antonio, TX 782091962475962
  7. Bradley Shipman, M.D.San Antonio, TX 782091083616916
  8. Paul Smith, M.D.San Antonio, TX 782091770585176

Common questions

What is Dennis Anthony Ruff, M.D.'s NPI number?

Dennis Anthony Ruff, M.D.'s National Provider Identifier (NPI) is 1003035718, issued on Apr 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Dennis Anthony Ruff, M.D. located?

The NPPES record lists a practice address at 8307 Gault LN, San Antonio, TX, 78209. Phone: (210) 798-5112. Providers update this record themselves, so call before visiting.

How can I verify Dennis Anthony Ruff, M.D.'s license?

NPPES lists Texas license number G9525, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.