Thomas O'Bryan, MD
NPI 1619927019 · Infectious Disease Physician · Fort Sam Houston, TX
Enrolled with Medicare as Order and Referring Only - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas O'Bryan, MD is a Infectious Disease Physician provider in Fort Sam Houston, TX (NPI 1619927019).
Provider details
- NPI number
- 1619927019
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD042083E (PA)
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
- 2006-05-10
- Last updated
- 2022-02-18
- Certified
- 2022-02-06
Frequently asked questions
- What is Thomas O'Bryan's NPI number?
- Thomas O'Bryan's National Provider Identifier (NPI) is 1619927019, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas O'Bryan's specialty?
- Thomas O'Bryan is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas O'Bryan located?
- Thomas O'Bryan's practice location on file with NPPES is Brooke Army Medical Center, Fort Sam Houston, TX 78234.
- What is Thomas O'Bryan's phone number?
- The practice phone number listed in the NPPES registry for Thomas O'Bryan is (210) 539-9582.
- Does Thomas O'Bryan accept Medicare?
- Thomas O'Bryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas O'Bryan's NPI active?
- Yes — Thomas O'Bryan's NPI (1619927019) is active in the NPPES registry as of the last update on 2022-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.