Collin O'Brien Grahl, MD
General Practice Physician · Fort Sam Houston, TX
Collin O'Brien Grahl, MD is a general practice physician with a practice address in Fort Sam Houston, Texas, and NPI 1851038467, issued on May 16, 2022. Check the license (Texas BP10078718, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Collin O'Brien Grahl
- Credential
- MD
- Primary taxonomy
- General Practice Physician 208D00000X
- License numbers
- BP10078718 TX
0101281763 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234
- Phone
- (512) 587-5269
- Enumerated
- May 16, 2022
- Record last updated
- Jul 3, 2024
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 1,062 in Texas → Look up another NPI →
Also registered at 3551 Roger Brooke Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adrianna Adams, LCSWClinical Social Worker1275265456
- John AdamsGeneral Practice Physician1134754898
- Jordan Adams, PAPhysician Assistant1336876598
- Oluwole Afuape, OTR/LOccupational Therapist1033593561
- Pierre Monverdy Agnant, MD, MPH, MBA, MACCInternal Medicine Physician1669868568
- Della Agquiz, PHARMDOncology Pharmacist1700538741
Verify Collin O'Brien Grahl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license BP10078718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average general practice physician in 2024
38 Medicare Part D claims, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
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.
Collin O'Brien Grahl among 1,062 general practice physician records in Texas
Collin O'Brien Grahl, MD is one of 1,062 general practice physician records with a practice address in Texas. 44% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 72% of them.
- NPI issued2022 · 72% of these records are older, 22% newer
- In a Medicare fileYes · 44% of these records are
- In the CMS Doctors and Clinicians fileNo · 21% of these records are
- Record last updated2024 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 general practice physician records list a practice address in Fort Sam Houston
They are 61 of the 2,124 NPPES records with a practice address in Fort Sam Houston, and 1,062 general practice physician records in Texas.
All 1,062 in Texas → Every provider in Fort Sam Houston → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Kahtonna Allen, M.S., D.O.Fort Sam Houston, TX 782341285867101
- Adrian Arnett, M.D.Jbsa Ft Sam Houston, TX 782341740572569
- Jonathan Baxter, DOJbsa Ft Sam Houston, TX 782341932475845
- Richard Boyd, DO, PHARMDJbsa Fort Sam Houston, TX 782341407186612
- Bryant Edwards, D.O.Fort Sam Houston, TX 782341760745079
- Stacy Fennell, D.O.Fort Sam Houston, TX 782341477846582
- Robert Klepatz, DOFort Sam Houston, TX 782341275592743
- Edward Manigault, D.O.Fort Sam Houston, TX 782341205818895
Common questions
What is Collin O'Brien Grahl, MD's NPI number?
Collin O'Brien Grahl, MD's National Provider Identifier (NPI) is 1851038467, issued on May 16, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Collin O'Brien Grahl, MD located?
The NPPES record lists a practice address at 3551 Roger Brooke Dr, Fort Sam Houston, TX, 78234. Phone: (512) 587-5269. Providers update this record themselves, so call before visiting.
How can I verify Collin O'Brien Grahl, MD's license?
NPPES lists Texas license number BP10078718, 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 Collin O'Brien Grahl, MD prescribe under Medicare Part D?
In 2024, Collin O'Brien Grahl, MD had 38 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.