NPPES file of Aug 9, 2026

Denise R. Dahm, M.D.

Geriatric Medicine (Internal Medicine) Physician · San Antonio, TX

Denise R. Dahm, M.D. is a geriatric medicine (internal medicine) physician with a practice address in San Antonio, Texas, and NPI 1962612028, issued on May 23, 2007. Check the license (Texas N3029, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962612028
Name
Denise R. Dahm
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
N3029 TX
Self-reported in NPPES; status is on the state search
Practice location
903 W Martin St, San Antonio, TX 78207
Phone
(210) 358-3555
Enumerated
May 23, 2007
Record last updated
Nov 6, 2025
Medicaid ID
204131101 TX
Medicare enrollment
Enrolled (PECOS I20090731000444); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest geriatric medicine (internal medicine) physician records → All 256 in Texas → Look up another NPI →

Also registered at 903 W Martin St

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

  1. Rana AbdelwahabStudent in an Organized Health Care Education/Training Program1194668525
  2. Sandra Adams, MDPulmonary Disease Physician1669483186
  3. Leticia Aguilar, MDFamily Medicine Physician1760451009
  4. Zuha AlamStudent in an Organized Health Care Education/Training Program1932995669
  5. Samantha Alvarado, MDObstetrics Physician1932894862
  6. Daniel Amram, MDStudent in an Organized Health Care Education/Training Program1265236822

Verify Denise R. Dahm in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N3029    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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78% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

954 Medicare Part D claims for 218 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. 37 claims were for opioids.

  1. Denise Dahm954
  2. Specialty average4,246

Most prescribed

  1. Atorvastatin Calcium73 claims
  2. Amlodipine Besylate37 claims
  3. Losartan Potassium32 claims
  4. Lisinopril27 claims
  5. Tramadol Hcl25 claims
  6. Pregabalin24 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. University OF Texas Health Science Center AT San AntonioSan Antonio, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Denise R. Dahm among 256 geriatric medicine (internal medicine) physician records in Texas

Denise R. Dahm, M.D. is one of 256 geriatric medicine (internal medicine) physician records with a practice address in Texas. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 56% of them.

  • NPI issued2007 · 56% of these records are older, 33% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2005 · median 2000 among the 143 with a school on file
  • Record last updated2025 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Texas

There are 256 geriatric medicine (internal medicine) physician records in Texas.

All 256 in Texas → Every provider in San Antonio → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Margaret Finley, MDSan Antonio, TX 782071710929773
  2. Guilford Robinson, M.D.San Antonio, TX 782091396705471
  3. Joshua Novotny, NPSan Antonio, TX 782101407552078
  4. Rowland Reyna, M.D.San Antonio, TX 782121700852498
  5. Joseph Thayil, MDSan Antonio, TX 782171275528978
  6. David Wood, D.O.San Antonio, TX 782221639162746
  7. Sharif Eusufzai, M.D., PHDSan Antonio, TX 782231083719900
  8. Paul Fanucchi, NPSan Antonio, TX 782281003567447

Common questions

What is Denise R. Dahm, M.D.'s NPI number?

Denise R. Dahm, M.D.'s National Provider Identifier (NPI) is 1962612028, issued on May 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Denise R. Dahm, M.D. located?

The NPPES record lists a practice address at 903 W Martin St, San Antonio, TX, 78207. Phone: (210) 358-3555. Providers update this record themselves, so call before visiting.

How can I verify Denise R. Dahm, M.D.'s license?

NPPES lists Texas license number N3029, 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.

How much does Denise R. Dahm, M.D. prescribe under Medicare Part D?

In 2024, Denise R. Dahm, M.D. had 954 Medicare Part D claims for 218 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.