HUY NGUYEN M.D.
NPI 1649445834
Hospitalist in Falls Church, VA
About Huy Nguyen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HUY NGUYEN M.D. (NPI 1649445834) is an individual hospitalist provider in Falls Church, Virginia, licensed in Virginia (0101246120) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2006).
NPPES Registry Identity
Specialties & Licenses
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
Huy Nguyen 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.
Medicare Billing Reassignments
3Medicare enrollment records show Huy Nguyen 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)
- 2,618 clinicians in this Medicare group
Frederick, MD 21701
- Reassigned Medicare billing, District of Columbia enrollment
- 204 clinicians in this Medicare group
Winchester, VA 22601
- Reassigned Medicare billing, District of Columbia enrollment
- 147 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 3
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Inova Alexandria Hospital
Acute Care Hospitals · Alexandria, VAInova Loudoun Hospital
Acute Care Hospitals · Leesburg, VAInova Fairfax Hospital
Acute Care Hospitals · Falls Church, VAInova Fair Oaks Hospital
Acute Care Hospitals · Fairfax, VAInova Mount Vernon Hospital
Acute Care Hospitals · Alexandria, 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 Huy Nguyen's NPI number?
The NPI number for Huy Nguyen is 1649445834. It was assigned to this individual provider in the NPPES registry on April 28, 2008.
Where is Huy Nguyen located?
Huy Nguyen practices at 3300 Gallows Rd Department Of Medicine, Falls Church, VA 22042. The listed phone number is (703) 776-3582.
What is Huy Nguyen's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Huy Nguyen enrolled in Medicare?
Yes. Huy Nguyen 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 Huy Nguyen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Huy Nguyen reassigns Medicare benefits to 3 organizations: Inova Health Care Services (Falls Church, VA), Hospitalist Medicine Physicians Of Maryland PC (Frederick, MD) and Hospitalist Medicine Physicians Of Virginia LLC (Winchester, VA). 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 Huy Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Huy Nguyen affiliated with any hospitals?
According to CMS data, Huy Nguyen is affiliated with Inova Alexandria Hospital, Inova Loudoun Hospital, Inova Fairfax Hospital, Inova Fair Oaks Hospital and Inova Mount Vernon Hospital.
When was this NPI record last updated?
The NPPES record for Huy Nguyen was last updated on May 15, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Huy Nguyen, M.D. · NPI 1649445834
Hospitalist physician in Falls Church, Virginia. Individual provider, active in the CMS NPPES registry since April 28, 2008.
## Identity
- **NPI:** 1649445834 (Entity type: Individual)
- **Enumerated:** April 28, 2008
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 0101246120 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 3300 GALLOWS RD, DEPARTMENT OF MEDICINE, Falls Church, VA 22042
- **Phone:** (703) 776-3582
## 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); Hospitalist Medicine Physicians Of Maryland PC (NPI 1992945471, Frederick, MD); Hospitalist Medicine Physicians Of Virginia LLC (NPI 1770756991, Winchester, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2006
## Record status
- **NPPES last updated:** May 15, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1649445834) · Data from the CMS NPPES public registry.