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

Brian P Callahan, MD

Individual provider Neurological Surgery Physician · NPI 1982750576

Brian P Callahan, MD is a Neurosurgery in Tucson, Arizona. Graduated from University of Colorado School of Medicine, Denver in 2003, 23 years ago. Practices with Neurological Associates of Tucson, a 60-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Arizona.

Years since qualifying
23
Trained at
University of Colorado School of Medicine, Denver
Licensed in
AZ
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2450 E River Rd
Tucson, AZ 85718-6522
Phone: (520) 795-7750
Fax: (520) 320-2155
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence 43234 (AZ)

Record details

NPI number1982750576
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 26, 2007
Last updated in NPPESApril 11, 2011
Mailing address2450 E River Rd, Tucson, AZ 85718-6522

Medicare enrollment

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

Medicare specialtyNEUROSURGERY
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 2003 (23 years in practice)
Group practice Neurological Associates Of Tucson — 60 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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