Dr. Brian Callahan, M.D.
Diagnostic Radiology
19+
Years in Practice
Practice Locations
2 locations
About Dr. Brian Callahan
Brian Callahan, M.D. is a healthcare provider practicing in Lackland A F B, TX.
Specialty Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
22
Years Experience
2
Locations
1
States Licensed
Credentials & Board Certifications
Additional Specialties
Primary Specialty
Diagnostic RadiologyCredentials verified via NPI Registry (NPPES)
Education & Training
Medical School
Harvard Medical School
Class of 2004
Licenses & Practice States
Licensed in 1 state
| State | License | Classification | Primary |
|---|---|---|---|
| Massachusetts | 233866 | Radiology | — |
| Massachusetts | 226167 | Radiology |
Public Data Summary for Dr. Brian Callahan
With 19 years of practice, Dr. Brian Callahan is an established diagnostic radiology provider, M.D., after earning their medical degree at Harvard Medical School in 2004. Dr. currently practices across 2 facilities, including Community Medicine Associates in San Antonio, Texas. Their National Provider Identifier (NPI) is 1013059625, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.
CMS Medicare data shows Dr. Brian Callahan as a high-volume diagnostic radiology provider, treating approximately 2K Medicare beneficiaries and delivering 4K services in the most recent reporting year. That panel size indicates sustained experience with complex Medicare cases.
Transparency & Safety
Public records from CMS and OIG databases
Opioid Prescribing
This provider has no opioid prescriptions on file in Medicare Part D data.
Insurance & Accessibility
Reviews
Community reviews for Dr. Brian Callahan
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0 reviews
Diagnostic Radiology Providers Nearby
Same primary specialty near ZIP 78236
FAQ
Frequently asked questions about Dr. Brian Callahan
What does Dr. Brian Callahan specialize in?
Dr. Brian Callahan specializes in Diagnostic Radiology. Secondary taxonomy filings also list Radiology.
Where does Dr. Brian Callahan practice?
Dr. Brian Callahan practices at Community Medicine Associates in San Antonio, Texas. Dr. is also affiliated with 1 additional facility, listed below.
Does Dr. Brian Callahan accept Medicare?
CMS records show that Dr. Brian Callahan accepts Medicare assignment. CMS billing data shows 2K Medicare beneficiaries treated in the most recent reporting year.
What is Dr. Brian Callahan's NPI number?
Dr. Brian Callahan's National Provider Identifier (NPI) is 1013059625. This is the unique 10-digit number the Centers for Medicare & Medicaid Services assigns to every practicing US healthcare provider. You can verify this number directly at the NPPES NPI Registry.
How long has Dr. Brian Callahan been practicing?
Dr. Brian Callahan has approximately 19 years of practice experience, having graduated from Harvard Medical School in 2004.