Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Brian Thomas Callahan, MD

Individual provider Vascular & Interventional Radiology Physician · NPI 1013059625

Dr. Brian Thomas Callahan, MD is a Diagnostic Radiology in Lackland A F B, Texas. Graduated from Harvard Medical School in 2004, 22 years ago. Practices with University of Maryland Community Medical Group Inc, a 450-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
22
Trained at
Harvard Medical School
Licensed in
MA
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2200 Bergquist Dr
Lackland A F B, TX 78236-9907
Phone: (210) 292-2205
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 226167 (MA)
Vascular & Interventional Radiology Physician Taxonomy 2085R0204X · Licence 233866 (MA)

Record details

NPI number1013059625
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 12, 2007
Last updated in NPPESSeptember 2, 2010
Mailing address5 Myrtlewood, San Antonio, TX 78218-6000

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Also practisesINTERVENTIONAL RADIOLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2004 (22 years in practice)
Group practice University Of Maryland Community Medical Group Inc — 450 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount