John T. Granaghan, MD
Internal Medicine Physician · San Angelo, TX
John T. Granaghan, MD is an internal medicine physician with a practice address in San Angelo, Texas, and NPI 1083676787, issued on Apr 6, 2006. Check the license (Texas E8518, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John T. Granaghan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- E8518 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4235 Southwest Blvd, San Angelo, TX 76904
- Phone
- (325) 658-1511
- Enumerated
- Apr 6, 2006
- Record last updated
- Nov 3, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (325) 481-2166
- Medicaid ID
- 102667603 TX
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 4235 Southwest Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John T. Granaghan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license E8518Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
62 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Lisinopril27 claims
- Memantine Hcl26 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.
John T. Granaghan among 9,175 internal medicine physician records in Texas
John T. Granaghan, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2016 · 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).
61 internal medicine physician records list a practice address in San Angelo
They are 61 of the 1,796 NPPES records with a practice address in San Angelo, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in San Angelo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Abner Acevedo-Peon, M.DSan Angelo, TX 769041619200607
- Idalia Alaniz, MDSan Angelo, TX 769041629341458
- Kirk Brewer, MDSan Angelo, TX 769041700848421
- Ross Carmichael, MDSan Angelo, TX 769041285696872
- Danilo Cruz, M.D.San Angelo, TX 769041508882952
- Dennis Durham, MDSan Angelo, TX 769041013945500
- Johnny French, MDSan Angelo, TX 769041811959505
- Walter Hewell, MDSan Angelo, TX 769041194787309
Common questions
What is John T. Granaghan, MD's NPI number?
John T. Granaghan, MD's National Provider Identifier (NPI) is 1083676787, issued on Apr 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John T. Granaghan, MD located?
The NPPES record lists a practice address at 4235 Southwest Blvd, San Angelo, TX, 76904. Phone: (325) 658-1511. Providers update this record themselves, so call before visiting.
How can I verify John T. Granaghan, MD's license?
NPPES lists Texas license number E8518, 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 John T. Granaghan, MD prescribe under Medicare Part D?
In 2024, John T. Granaghan, MD had 62 Medicare Part D claims; 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.