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PATRICK F CALLAHAN M.D.
NPI 1487616082
Pediatrics - Pediatric Cardiology in Fairfax, VA

Active since April 06, 2006PECOS EnrolledAccepts Medicare Assignment
81.28/100
CMS Quality Rating
8260 WILLOW OAKS CORPORATE DR STE 400, FAIRFAX, VA 22031(703) 573-0504(703) 573-4856 Get Directions Write a Review

NPPES record last updated: April 27, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 27, 2022, Aug 18, 2021 (2 updates tracked since 2021).

About Patrick F Callahan M.d. NPPES

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

PATRICK F CALLAHAN M.D. (NPI 1487616082) is an individual pediatric cardiology provider in Fairfax, Virginia, licensed in Virginia (0101230553) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Falls Church, and is a graduate of State University Of New York At Stony Brook, School Of Medicine (1990).

NPPES Registry Identity

NPI1487616082
Entity TypeIndividualMale
Primary Taxonomy2080P0202X
Provider Legal NamePATRICK F CALLAHANCredential: M.D.
Location Address8260 WILLOW OAKS CORPORATE DR STE 400Fairfax, VA 22031-4513
Mailing AddressPo Box 37174Baltimore, MD 21297-3174 · (571) 423-5699 · Fax (571) 423-5698
Phone(703) 573-0504
Fax(703) 573-4856
Sole ProprietorNo
Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 1990
Enumeration DateApril 6, 2006
Last NPPES UpdateApril 27, 20222 updates tracked since enumeration
NPPES CertifiedApril 27, 2022
✔ NPI 1487616082 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0202X
Licenses✔ Licensed in VA · 0101230553✔ Licensed in MD · D0057138✔ Licensed in DC · MD19833
Definition
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.
8260 WILLOW OAKS CORPORATE DR STE 400, Fairfax, VA 22031
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Secondary Practice Location 1

Location 13300 Gallows RdFalls Church, VA 22042-3300 · Phone (703) 776-4001 · Fax (703) 776-7113

Other Identifiers 2

Medicaid009999078VA
Medicaid26104101MD

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Patrick F Callahan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9830170612
PECOS Enrollment IDI20040527000288, I20060105000353
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Patrick Callahan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Inova Health Care Services
0.5 mi
Internal Medicine
3300 GALLOWS RD, PHYSICIAN SERVICES
Falls Church, VA 22042
  • Reassigned Medicare billing, District of Columbia and Virginia enrollments
  • Also billed through NPI 1588717755 (Virginia)
  • 2,618 clinicians in this Medicare group
NPI 1952320061 (703) 321-2627

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

81.28/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.77
Promoting Interoperability100
Improvement Activities40
Cost66.84

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.

KRISTEN ELIZABETH BARBIERI PA-C
Physician Assistant
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
KINJAL PARIKH MD
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
DR. HARISH SITARAM RUDRA D.O.
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
SHERIF S TAWFIK M.D.
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
JENNIFER H LINDSEY M.D.
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
MARC DELANEY MD
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
DR. HIRAL SHAH MD
Pediatrics
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504
JASON FREDERICK GOLDBERG M.D.
Pediatrics (Pediatric Cardiology)
8260 WILLOW OAKS CORPORATE DR STE 400
FAIRFAX, VA 22031
Fairfax County (703) 573-0504

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 Patrick Callahan's NPI number?

The NPI number for Patrick Callahan is 1487616082. It was assigned to this individual provider in the NPPES registry on April 6, 2006.

Where is Patrick Callahan located?

Patrick Callahan practices at 8260 Willow Oaks Corporate Dr Ste 400, Fairfax, VA 22031. The listed phone number is (703) 573-0504.

What is Patrick Callahan's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Is Patrick Callahan enrolled in Medicare?

Yes. Patrick Callahan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Patrick Callahan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Callahan reassigns Medicare benefits to Inova Health Care Services (Falls Church, VA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Patrick Callahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Patrick Callahan accept?

Health plans from Oscar Health list Patrick Callahan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Patrick Callahan was last updated on April 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.