NANCY CHOU MACGARVEY MD
NPI 1174732929
Internal Medicine - Critical Care Medicine in Falls Church, VA
About Nancy Chou Macgarvey Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NANCY CHOU MACGARVEY MD (NPI 1174732929) is an individual critical care medicine provider in Falls Church, Virginia, licensed in Virginia (0101258062) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Inova Fairfax Hospital, and maintains a secondary practice location in Philadelphia.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Other Identifiers 1
Accepted 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
Nancy Chou Macgarvey Md 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.
Medicare Billing Reassignments
3Medicare enrollment records show Nancy Macgarvey reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Falls Church, VA 22042
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- Also billed through NPI 1588717755 (Virginia)
- 167 clinicians in this Medicare group
Fairfax, VA 22033
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1073678637 (District of Columbia), NPI 1578638425 (District of Columbia), NPI 1497023188 (District of Columbia), NPI 1366781700 (District of Columbia), NPI 1942546486 (Maryland)
- 2,492 clinicians in this Medicare group
Philadelphia, PA 19104
- Reassigned Medicare billing, Pennsylvania enrollment
- 335 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Inova Fairfax Hospital
Acute Care Hospitals · Falls Church, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22042 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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.
FALLS CHURCH, VA 22042
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 Nancy Macgarvey's NPI number?
The NPI number for Nancy Macgarvey is 1174732929. It was assigned to this individual provider in the NPPES registry on May 21, 2007.
Where is Nancy Macgarvey located?
Nancy Macgarvey practices at 3300 Gallows Rd, Falls Church, VA 22042. The listed phone number is (703) 776-4001.
What is Nancy Macgarvey's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Nancy Macgarvey enrolled in Medicare?
Yes. Nancy Macgarvey 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 organizations bill Medicare for Nancy Macgarvey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nancy Macgarvey reassigns Medicare benefits to 3 organizations: Inova Health Care Services (Falls Church, VA), Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Fairfax, VA) and Drexel University (Philadelphia, PA). Each 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 Nancy Macgarvey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nancy Macgarvey accept?
Health plans from Oscar Health list Nancy Macgarvey 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.
Is Nancy Macgarvey affiliated with any hospitals?
According to CMS data, Nancy Macgarvey is affiliated with Inova Fairfax Hospital.
When was this NPI record last updated?
The NPPES record for Nancy Macgarvey was last updated on July 16, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Nancy Chou Macgarvey, MD · NPI 1174732929
Critical Care Medicine physician in Falls Church, Virginia. Individual provider, active in the CMS NPPES registry since May 21, 2007.
## Identity
- **NPI:** 1174732929 (Entity type: Individual)
- **Enumerated:** May 21, 2007
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 0101258062 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 3300 GALLOWS RD, Falls Church, VA 22042-3307
- **Phone:** (703) 776-4001 · **Fax:** (703) 776-7113
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Inova Health Care Services (NPI 1952320061, Falls Church, VA); Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (NPI 1215058326, Fairfax, VA); Drexel University (NPI 1356458772, Philadelphia, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Kansas School Of Med, class of 2004
## Record status
- **NPPES last updated:** July 16, 2021
- **Other identifiers:** Other BP1-0017811
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Source: [NPI Profile](https://npiprofile.com/npi/1174732929) · Data from the CMS NPPES public registry.