Christopher Paul Irwin, M.D
Internal Medicine Physician · Fort Sam Houston, TX
Christopher Paul Irwin, M.D is an internal medicine physician with a practice address in Fort Sam Houston, Texas, and NPI 1033506191, issued on Apr 16, 2015. Check the license on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Christopher Paul Irwin
- Credential
- M.D
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 29445 NE
32890 WV
Self-reported in NPPES; status is on the state search - Practice location
- 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234
- Phone
- (916) 210-2338
- Enumerated
- Apr 16, 2015
- Record last updated
- Nov 7, 2023
- Medicare enrollment
- Enrolled (PECOS I20201019000963); accepts Medicare assignment
- Medical or professional school
- West Virginia University School Of Medicine, 2015
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 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 Christopher Paul Irwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical BoardCheck 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 for 27 beneficiaries, against an average of 3,176 among the 108,855 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.
The MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Hospital Medicine Services OF TX, PLLCSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Paul Irwin among 9,175 internal medicine physician records in Texas
Christopher Paul Irwin, M.D 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 2015, is newer than 71% of them.
- NPI issued2015 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2015 · median 2004 among the 6,088 with a school on file
- Record last updated2023 · 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).
46 internal medicine physician records list a practice address in Fort Sam Houston
They are 46 of the 2,124 NPPES records with a practice address in Fort Sam Houston, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Fort Sam Houston → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Timothy Acel, M.D.San Antonio, TX 782341043284797
- Himabindu Borra, MDForst Sam Houston, TX 782341710936596
- Misty Carlson, DOFt Sam Houston, TX 782341083662324
- Roberta Ficke, MDSan Antonio, TX 782341013996735
- Kirsten Goldhammer, MDSan Antonio, TX 782341558351114
- Rosalynn Kim, DOFort Sam Houston, TX 782341285605022
- Doreen Lounsbery, MDFort Sam Houston, TX 782341912903931
- Andre Ognibene, MDFort Sam Houston, TX 782341013908805
Common questions
What is Christopher Paul Irwin, M.D's NPI number?
Christopher Paul Irwin, M.D's National Provider Identifier (NPI) is 1033506191, issued on Apr 16, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Paul Irwin, M.D located?
The NPPES record lists a practice address at 3551 Roger Brooke Dr, Fort Sam Houston, TX, 78234. Phone: (916) 210-2338. Providers update this record themselves, so call before visiting.
How can I verify Christopher Paul Irwin, M.D's license?
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 Christopher Paul Irwin, M.D prescribe under Medicare Part D?
In 2024, Christopher Paul Irwin, M.D had 62 Medicare Part D claims for 27 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Christopher Paul Irwin, M.D's MIPS final score?
The 2023 MIPS final score is 94.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.