Karwin L. McCain, MD
Physical Medicine & Rehabilitation Physician · San Antonio, TX
Karwin L. McCain, MD is a physical medicine & rehabilitation physician with a practice address in San Antonio, Texas, and NPI 1922282847, issued on Dec 27, 2007. Check the license (Texas N7639, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karwin L. McCain
- Credential
- MD
- Primary taxonomy
- Physical Medicine & Rehabilitation Physician 208100000X
- License number
- N7639 TX
Self-reported in NPPES; status is on the state search - Practice location
- 9643 Huebner RD, San Antonio, TX 78240
- Phone
- (210) 614-8222
- Enumerated
- Dec 27, 2007
- Record last updated
- May 2, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110121000292); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest physical medicine & rehabilitation physician records → All 1,099 in Texas → Look up another NPI →
Also registered at 9643 Huebner RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Alejos, P.T.Orthopedic Physical Therapist1952366320
- Michael Barker, M.D.Physical Medicine & Rehabilitation Physician1194735662
- Omar Garcia, M.D.Physical Medicine & Rehabilitation Physician1730471251
- Alasdair Goldstein, M.D.Physical Medicine & Rehabilitation Physician1790860757
Verify Karwin L. McCain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license N7639Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% more Medicare Part D claims than the average physical medicine & rehabilitation physician in 2024
1,259 Medicare Part D claims for 454 beneficiaries, against an average of 727 among the 7,448 providers of this specialty who prescribed in Part D. 283 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen233 claims
- Celecoxib177 claims
- Pregabalin166 claims
- Methocarbamol44 claims
- Gabapentin43 claims
- Pantoprazole Sodium43 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.
The MIPS final score for 2023 (Medicare payment program): 100 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
- Alasdair Goldstein MD PASan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karwin L. McCain among 1,099 physical medicine & rehabilitation physician records in Texas
Karwin L. McCain, MD is one of 1,099 physical medicine & rehabilitation physician records with a practice address in Texas. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 29% of them.
- NPI issued2007 · 29% of these records are older, 62% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated2006 · median 2006 among the 512 with a school on file
- Record last updated2011 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208100000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physical Medicine & Rehabilitation Physician providers in Texas
There are 1,099 physical medicine & rehabilitation physician records in Texas.
All 1,099 in Texas → Every provider in San Antonio → Physical Medicine & Rehabilitation Physician nationwide →
The 8 physical medicine & rehabilitation physician records with the nearest ZIP codes
- Michele AlstonSan Antonio, TX 782401427477850
- Michael Barker, M.D.San Antonio, TX 782401194735662
- Keith Burchill, M.D.San Antonio, TX 782401508179052
- Seth Chandler, DOSan Antonio, TX 782401548475924
- Omar Garcia, M.D.San Antonio, TX 782401730471251
- Alasdair Goldstein, M.D.San Antonio, TX 782401790860757
- Lavarre Green, OTRSan Antonio, TX 782401487240446
- Bert Ma, MDSan Antonio, TX 782401396329231
Common questions
What is Karwin L. McCain, MD's NPI number?
Karwin L. McCain, MD's National Provider Identifier (NPI) is 1922282847, issued on Dec 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Karwin L. McCain, MD located?
The NPPES record lists a practice address at 9643 Huebner RD, San Antonio, TX, 78240. Phone: (210) 614-8222. Providers update this record themselves, so call before visiting.
How can I verify Karwin L. McCain, MD's license?
NPPES lists Texas license number N7639, 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 Karwin L. McCain, MD prescribe under Medicare Part D?
In 2024, Karwin L. McCain, MD had 1,259 Medicare Part D claims for 454 beneficiaries; the average among physical medicine & rehabilitation physician prescribers was 727. Part D covers Medicare prescriptions only.
What is Karwin L. McCain, MD's MIPS final score?
The 2023 MIPS final score is 100 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.