NPPES file of Aug 9, 2026

James Holmes Dinn, DO, MS

Internal Medicine Physician · San Antonio, TX

James Holmes Dinn, DO, MS is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1790364933, issued on Apr 5, 2021. Check the license (Texas T9669, 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
1790364933
Name
James Holmes Dinn
Credential
DO, MS
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
T9669 TX
Self-reported in NPPES; status is on the state search
Practice location
600 Division Ave Ste E, San Antonio, TX 78214
Phone
(210) 222-0333
Enumerated
Apr 5, 2021
Record last updated
Jul 23, 2024
Fax
(726) 268-7701
Medicare enrollment
Enrolled (PECOS I20240819001566); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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Also registered at 600 Division Ave Ste E

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

  1. Miguel Ayala, MDInternal Medicine Physician1174510507
  2. Steven Bauer, MDInternal Medicine Physician1548228927
  3. Julie Gilbreath, M.DInternal Medicine Physician1144486630
  4. Aimee Hunt, FNP-CFamily Nurse Practitioner1407250681
  5. Dawn Rudd, MDInternal Medicine Physician1669441937
  6. Michelle Sanchez, PAPhysician Assistant1962675538

Verify James Holmes Dinn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license T9669
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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75% fewer Medicare Part D claims than the average internal medicine physician in 2024

795 Medicare Part D claims for 285 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 47 claims were for opioids.

  1. James Dinn795
  2. Specialty average3,176

Most prescribed

  1. Rosuvastatin Calcium28 claims
  2. Albuterol Sulfate Hfa19 claims
  3. Tramadol Hcl18 claims
  4. Metformin Hcl17 claims
  5. Amlodipine Besylate16 claims
  6. Azelastine Hcl15 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.

Industry payments in 2024: $20.40

1 payment: food and beverage; the largest payer was Mitsubishi Tanabe Pharma America, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Dinn$20.40
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Wellmed Medical Group PASan Antonio, TX

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

James Holmes Dinn among 9,175 internal medicine physician records in Texas

James Holmes Dinn, DO, MS 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. Its NPI, issued in 2021, is newer than 88% of them.

  • NPI issued2021 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2021 · median 2004 among the 6,088 with a school on file
  • Record last updated2024 · 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Carla Acra Despradel, M.D.San Antonio, TX 782141114181666
  2. Miguel Ayala, MDSan Antonio, TX 782141174510507
  3. Steven Bauer, MDSan Antonio, TX 782141548228927
  4. Julian Falla, MDSan Antonio, TX 782141710141437
  5. Doris Franco-Vitteri, MDSan Antonio, TX 782141215104161
  6. Julie Gilbreath, M.DSan Antonio, TX 782141144486630
  7. William Gonzaba, M.D.San Antonio, TX 782141548231905
  8. Manuel Martinez, M.D.San Antonio, TX 782141568437432

Common questions

What is James Holmes Dinn, DO, MS's NPI number?

James Holmes Dinn, DO, MS's National Provider Identifier (NPI) is 1790364933, issued on Apr 5, 2021. An NPI identifies a provider in billing; it is not a license.

Where is James Holmes Dinn, DO, MS located?

The NPPES record lists a practice address at 600 Division Ave Ste E, San Antonio, TX, 78214. Phone: (210) 222-0333. Providers update this record themselves, so call before visiting.

How can I verify James Holmes Dinn, DO, MS's license?

NPPES lists Texas license number T9669, 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 James Holmes Dinn, DO, MS prescribe under Medicare Part D?

In 2024, James Holmes Dinn, DO, MS had 795 Medicare Part D claims for 285 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.

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.