1. Home
  2. Directory
  3. Texas
  4. Fort Sam Houston
  5. Radiology
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN R OLSEN M.D.
NPI 1932180361
Radiology - Vascular & Interventional Radiology in Fort Sam Houston, TX

Active since November 11, 2005
3851 ROGER BROOKE DR, MCHE-QD (CREDENTIALS), FORT SAM HOUSTON, TX 78234(210) 916-4143 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. John R Olsen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN R OLSEN M.D. (NPI 1932180361) is an individual vascular & interventional radiology provider in Fort Sam Houston, Texas, licensed in Pennsylvania (MD041023E) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1932180361
Entity TypeIndividualMale
Primary Taxonomy2085R0204X
Provider Legal NameDR. JOHN R OLSENCredential: M.D.
Location Address3851 ROGER BROOKE DR, MCHE-QD (CREDENTIALS)Fort Sam Houston, TX 78234-4501
Mailing Address639 Elizabeth RdSan Antonio, TX 78209-6134 · (210) 828-2021 · Fax (210) 828-2021
Phone(210) 916-4143
Sole ProprietorNo
Enumeration DateNovember 11, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1932180361 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Vascular & Interventional RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0204X
License✔ Licensed in PA · MD041023E
Definition
A radiologist who diagnoses and treats diseases by various radiologic imaging modalities. These include fluoroscopy, digital radiography, computed tomography, sonography and magnetic resonance imaging.
3851 ROGER BROOKE DR, Fort Sam Houston, TX 78234
Open in Google Maps ↗

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARGARET JACKSON PSY.D.
Psychologist
3851 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Bexar County (210) 916-1600
DR. RAJNIKANT C PATEL M.D
Anesthesiology (Critical Care Medicine)
3851 ROGER BROOKE DR, MCHE-QD (CREDENTIALS)
FORT SAM HOUSTON, TX 78234
Bexar County (210) 916-2118
FRANCIS KOBINA AGYAPONG NP
Nurse Practitioner (Acute Care)
3851 ROGER BROOKE DR, BROOKE ARMY MEDICAL CENTER, MCHE-QD(CREDS)
FORT SAM HOUSTON, TX 78234
Bexar County (719) 466-0576
MS. NATALIE R CHANG-MASON
Occupational Therapy Assistant
3851 ROGER BROOKE DR
FORT SAM HOUSTON, TX 78234
Bexar County (210) 916-5805
CONRAD GREGORY HAWKINS
Physical Therapist
3851 ROGER BROOKE DR, MCHE-QD (CRENDENTIALS)
FORT SAM HOUSTON, TX 78234
Bexar County (210) 916-2460
DR. CRAIG CAMPBELL MCFARLAND MD
Anesthesiology
3851 ROGER BROOKE DR, MCHE-QD (CREDS)
FORT SAM HOUSTON, TX 78234
Bexar County (210) 916-2460
ANDRE JOHN OGNIBENE MD
Internal Medicine
3851 ROGER BROOKE DR, MCHE-QD (CREDS)
FORT SAM HOUSTON, TX 78234
Bexar County (210) 916-5993
DR. MICHAEL DAY DULLEA M.D.
Radiology (Therapeutic Radiology)
3851 ROGER BROOKE DR, MCHE-QD (CREDENTIALS)
FORT SAM HOUSTON, TX 78234
Bexar County (210) 916-5046

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Olsen's NPI number?

The NPI number for John Olsen is 1932180361. It was assigned to this individual provider in the NPPES registry on November 11, 2005.

Where is John Olsen located?

John Olsen practices at 3851 Roger Brooke Dr Mche-Qd (credentials), Fort Sam Houston, TX 78234. The listed phone number is (210) 916-4143.

What is John Olsen's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.

When was this NPI record last updated?

The NPPES record for John Olsen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.