Cardiovascular DiseasesHeart Disease Risk FactorsHIV Infections
Dr. Thomas A. O'Bryan, MD
NPI1619927019
- Part D claims, 2024
- 16
- Publications
- 15
- Hospital affiliations
- 1
- Industry payments
- $24
- State license
- 1
- Practice address
- 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234
- Practice phone
- Call (210) 916-4141
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. O'Bryan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Thomas A. O'Bryan is an infectious disease specialist in Jbsa Fort Sam Houston, Texas
Dr. O'Bryan practices at Brooke Army Medical Center in Fort Sam Houston, Texas, part of United States Department of War.
Dr. O'Bryan's NPI, 1619927019, was assigned on May 10, 2006. Dr. O'Bryan holds Pennsylvania license MD042083E.
NPI and contact details
- NPI
- 1619927019NPI Registry (opens in a new tab)
- NPI enumeration date
- May 10, 2006
- NPI status
- Active
- Practice phone
- (210) 916-4141
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas A. O'Bryan practices at Brooke Army Medical Center in Fort Sam Houston, Texas
Dr. O'Bryan's primary practice is Brooke Army Medical Center, at 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234 in Bexar County. The practice phone is (210) 916-4141.
- Brooke Army Medical Center3551 Roger Brooke Dr, Fort Sam Houston, TX 78234 · Bexar CountyPhone(210) 916-4141
Source: Dmand AI Affiliation Data
Dr. Thomas A. O'Bryan is affiliated with 1 site of care
Dr. O'Bryan's primary practice is Brooke Army Medical Center in Fort Sam Houston, Texas, part of United States Department of War. Dr. O'Bryan's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas A. O'Bryan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Bryan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Brooke Army Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas A. O'Bryan is one of 629 infectious disease specialists in Texas
Infectious disease is Dr. O'Bryan's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. O'Bryan is licensed in Pennsylvania.
Specialties and state licenses
- Infectious disease, PennsylvaniaPrimary
Infectious disease specialists near Dr. O'Bryan
Counts of infectious disease specialists with a Dmand AI profile, by place and practice. Each opens the list.
629infectious disease specialists in Texas13infectious disease specialists in Jbsa Fort Sam Houston10infectious disease specialists at Brooke Army Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Thomas A. O'Bryan's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Dr. O'Bryan's median patient age at 76, with 16% women.
Dr. O'Bryan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women16%
- Men84%
Source: Dmand AI Patient Panel Data
Dr. Thomas A. O'Bryan wrote 16 Medicare Part D claims in 2024
In 2024, Dr. O'Bryan wrote 16 Medicare Part D claims. 94% of them were for generic drugs.
Part D claims, 202416
Dr. O'Bryan's Part D claims by kind of drug, 2024
- Generic15 claims94%
- Brand-name and other1 claims6%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Thomas A. O'Bryan has 15 publications on record
Dmand AI links 15 papers to Dr. O'Bryan, published from 2010 to 2021. 2015 was the busiest year, with 4. The most frequent topics are HIV Infections, Military Personnel and Antibodies, Viral. Dr. O'Bryan's most frequent co-authors are Brian K. Agan, MD, Jason Okulicz, MD and Robert Gerald Deiss, MD.
Papers15
Years published2010 to 2021
Dr. O'Bryan's papers by year, 2010 to 2021
Topics Dr. O'Bryan writes about most
- HIV Infections
- Military Personnel
- Antibodies, Viral
- Anti-HIV Agents
- Antiretroviral Therapy, Highly Active
- Viral Load
Dr. O'Bryan's most frequent co-authors
- Brian K. Agan, MD12 shared papers
- Jason Okulicz, MD12 shared papers
- Robert Gerald Deiss, MD6 shared papers
Recent publications by Dr. O'Bryan
AlkynesAnti-HIV AgentsAssessment of Medication Adherence
Alcohol Clin Exp Res
Alcohol DrinkingAnti-HIV AgentsAntiretroviral Therapy, Highly Active
See who Dr. O'Bryan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Bryan works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas A. O'Bryan received $24 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. O'Bryan from 1 drug or device company in 2017. Education make up the largest share, 100% of the total. Astellas Pharma US Inc paid the most, $24.
Companies that paid Dr. O'Bryan the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Thomas A. O'Bryan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Thomas A. O'Bryan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Thomas A. O'Bryan's NPI number?
Dr. Thomas A. O'Bryan's NPI number is 1619927019. It was assigned on May 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas A. O'Bryan?
Dr. Thomas A. O'Bryan is an infectious disease specialist in Jbsa Fort Sam Houston, Texas. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Thomas A. O'Bryan practice?
Dr. O'Bryan practices at 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234. Dr. O'Bryan's primary practice is Brooke Army Medical Center in Fort Sam Houston, Texas, part of United States Department of War.
What is Dr. Thomas A. O'Bryan's office phone number?
The practice phone on file for Dr. O'Bryan is (210) 916-4141.
What is Dr. Thomas A. O'Bryan's medical license number?
Dr. O'Bryan holds Pennsylvania license MD042083E.
Which hospitals is Dr. Thomas A. O'Bryan affiliated with?
Dr. O'Bryan practices at Brooke Army Medical Center in Fort Sam Houston, Texas.
Has Dr. Thomas A. O'Bryan received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Dr. O'Bryan from 1 company from 2017 to 2017. The largest total came from Astellas Pharma US Inc.
How long has Dr. Thomas A. O'Bryan been practicing?
Dr. O'Bryan's NPI was assigned in 2006.
Does Dr. Thomas A. O'Bryan do research?
Dmand AI links 15 publications to Dr. O'Bryan, published from 2010 to 2021.
Who does Dr. Thomas A. O'Bryan publish with?
Dr. O'Bryan's most frequent co-authors are Brian K. Agan, MD (12 shared papers), Jason Okulicz, MD (12 shared papers) and Robert Gerald Deiss, MD (6 shared papers).
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