Gregory Alan Hamon, MD
Surgery Physician · San Antonio, TX
Gregory Alan Hamon, MD is a surgery physician with a practice address in San Antonio, Texas, and NPI 1225033194, issued on Jun 16, 2005. Check the license (Texas H8107, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Alan Hamon
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- H8107 TX
A049434 CA
Self-reported in NPPES; status is on the state search - Practice location
- 19016 Stone Oak Pkwy Ste 220, San Antonio, TX 78258
- Phone
- (210) 627-1904
- Enumerated
- Jun 16, 2005
- Record last updated
- Nov 4, 2024
- Fax
- (210) 610-0211
- Medicaid ID
- 00A494341 CA
- Medicare enrollment
- Enrolled (PECOS I20080320000238); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 1989
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 2,192 in Texas → Look up another NPI →
Verify Gregory Alan Hamon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license H8107Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average surgery physician in 2024
47 Medicare Part D claims for 21 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Acetaminophen-Codeine16 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: $395.85
8 payments; by number, the most common kind was food and beverage; the largest payer was Davol Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gregory Alan Hamon among 2,192 surgery physician records in Texas
Gregory Alan Hamon, MD is one of 2,192 surgery physician records with a practice address in Texas. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1989 · median 2004 among the 1,350 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 208600000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Texas
There are 2,192 surgery physician records in Texas.
All 2,192 in Texas → Every provider in San Antonio → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Bruce Conway, MDSan Antonio, TX 782581629005996
- Richard Englehardt, M.D.San Antonio, TX 782581225251002
- Harold Gaskill, MDSan Antonio, TX 782581659372084
- Edward Horvath, D.O.San Antonio, TX 782581518942085
- Mitra Jafari, M.D.San Antonio, TX 782581528232014
- Joe Johnston, MDSan Antonio, TX 782581679507123
- William Parker, M.D.San Antonio, TX 782581295778686
- Jorge Rincon, MDSan Antonio, TX 782581356303960
Common questions
What is Gregory Alan Hamon, MD's NPI number?
Gregory Alan Hamon, MD's National Provider Identifier (NPI) is 1225033194, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Alan Hamon, MD located?
The NPPES record lists a practice address at 19016 Stone Oak Pkwy Ste 220, San Antonio, TX, 78258. Phone: (210) 627-1904. Providers update this record themselves, so call before visiting.
How can I verify Gregory Alan Hamon, MD's license?
NPPES lists Texas license number H8107, 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 Gregory Alan Hamon, MD prescribe under Medicare Part D?
In 2024, Gregory Alan Hamon, MD had 47 Medicare Part D claims for 21 beneficiaries; the average among surgery physician prescribers was 147. 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.