John Cowsar, D.O.
NPI 1538150354 · Family Medicine Physician · Ft. Sam Houston, TX
John Cowsar, D.O. is a Family Medicine Physician provider in Ft. Sam Houston, TX (NPI 1538150354).
Provider details
- NPI number
- 1538150354
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- License
- F3867 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Cowsar's NPI number?
- John Cowsar's National Provider Identifier (NPI) is 1538150354, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Cowsar's specialty?
- John Cowsar is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Cowsar located?
- John Cowsar's practice location on file with NPPES is Family Medicine Clinic Mcwethy, Ft. Sam Houston, TX 78234-6250.
- What is John Cowsar's phone number?
- The practice phone number listed in the NPPES registry for John Cowsar is (210) 295-4908.
- Is John Cowsar's NPI active?
- Yes — John Cowsar's NPI (1538150354) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.