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

Patrick F Callahan, MD

Individual provider Pediatric Cardiology Physician · NPI 1487616082

Patrick F Callahan, MD is a Pediatric Medicine in Fairfax, Virginia. Graduated from State University of New York at Stony Brook, School of Medicine in 1990, 36 years ago. Practices with Inova Health Care Services, a 1,827-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in District of Columbia, Maryland and Virginia.

Years since qualifying
36
Trained at
State University of New York at Stony Brook, School of Medicine
Licensed in
DC, MD, VA
In the registry since
2006
Specialties on file
3
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

8260 Willow Oaks Corporate Dr Ste 400
Fairfax, VA 22031-4513
Phone: (703) 573-0504
Fax: (703) 573-4856
Show map & directions

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

Additional practice locations (1)

  • 3300 Gallows Rd, Falls Church, VA 22042-3300 — (703) 776-4001

Specialties & licences

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X · Licence 0101230553 (VA)
Pediatric Cardiology Physician Taxonomy 2080P0202X · Licence D0057138 (MD)
Pediatric Cardiology Physician Taxonomy 2080P0202X · Licence MD19833 (DC)

Record details

NPI number1487616082
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 6, 2006
Last updated in NPPESApril 27, 2022
Certification dateApril 27, 2022
Mailing addressPo Box 37174, Baltimore, MD 21297-3174

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolSTATE UNIVERSITY OF NEW YORK AT STONY BROOK, SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Inova Health Care Services — 1827 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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