Gregory Keith Moore, MD
Internal Medicine Physician · San Marcos, TX
Gregory Keith Moore, MD is an internal medicine physician with a practice address in San Marcos, Texas, and NPI 1417958760, issued on Aug 9, 2005. Check the license (Texas G5397, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Gregory Keith Moore
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G5397 TX
Self-reported in NPPES; status is on the state search - Practice location
- 601 Leah Ave, San Marcos, TX 78666
- Phone
- (512) 396-1000
- Enumerated
- Aug 9, 2005
- Record last updated
- Aug 18, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (512) 353-2554
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 601 Leah Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Larry Beville, NPInternal Medicine Physician1770897498
- Meghan Dupre, M.D.Pediatrics Physician1114269214
- Julie Fisher, M.D.Pediatrics Physician1275892887
- Nicole Hartman, M.D.Pediatrics Physician1407117146
- Rebecca ShivelyFamily Nurse Practitioner1508920935
Verify Gregory Keith Moore in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license G5397Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
90 Medicare Part D claims for 20 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of 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.
Gregory Keith Moore among 9,175 internal medicine physician records in Texas
Gregory Keith Moore, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2015 · 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).
13 internal medicine physician records list a practice address in San Marcos
They are 13 of the 1,003 NPPES records with a practice address in San Marcos, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in San Marcos → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Raka Amin, MDSan Marcos, TX 786661437576493
- Jose Ayala, MDSan Marcos, TX 786661114960663
- Larry Beville, NPSan Marcos, TX 786661770897498
- Emilio Carranco, M.D.San Marcos, TX 786661730341660
- Donna Dolan, MDSan Marcos, TX 786661831134824
- Rubin Harris, MDSan Marcos, TX 786661386619765
- Cody Nichols, M.D.San Marcos, TX 786661295766038
- Thomas Parker, M.D.San Marcos, TX 786661962558056
Common questions
What is Gregory Keith Moore, MD's NPI number?
Gregory Keith Moore, MD's National Provider Identifier (NPI) is 1417958760, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Keith Moore, MD located?
The NPPES record lists a practice address at 601 Leah Ave, San Marcos, TX, 78666. Phone: (512) 396-1000. Providers update this record themselves, so call before visiting.
How can I verify Gregory Keith Moore, MD's license?
NPPES lists Texas license number G5397, 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 Keith Moore, MD prescribe under Medicare Part D?
In 2024, Gregory Keith Moore, MD had 90 Medicare Part D claims for 20 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.