WEIFEN ZENG MD
NPI 1336389923
Pathology - Anatomic Pathology & Clinical Pathology in Leesburg, VA
About Weifen Zeng Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WEIFEN ZENG MD (NPI 1336389923) is an individual anatomic pathology & clinical pathology provider in Leesburg, Virginia, licensed in Virginia (0101249796) and active in the NPI registry since February 2009. She is enrolled in Medicare PECOS, is affiliated with Inova Alexandria Hospital, and maintains a secondary practice location in Clevleland.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Weifen Zeng 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
2Medicare enrollment records show Weifen Zeng reassigns Medicare billing to 2 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
- 57 clinicians in this Medicare group
Manassas, VA 20110
- Reassigned Medicare billing, Virginia enrollment
- 3 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 18
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 20176 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.
LEESBURG, VA 20176
LEESBURG, VA 20176
LEESBURG, VA 20176
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 Weifen Zeng's NPI number?
The NPI number for Weifen Zeng is 1336389923. It was assigned to this individual provider in the NPPES registry on February 23, 2009.
Where is Weifen Zeng located?
Weifen Zeng practices at 44045 Riverside Pkwy, Leesburg, VA 20176. The listed phone number is (703) 858-6000.
What is Weifen Zeng's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Weifen Zeng enrolled in Medicare?
Yes. Weifen Zeng 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 Weifen Zeng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Weifen Zeng reassigns Medicare benefits to 2 organizations: Inova Health Care Services - Pathology (Falls Church, VA) and Prince William Pathology Associates, PC (Manassas, 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 Weifen Zeng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Weifen Zeng accept?
Health plans from Oscar Health list Weifen Zeng 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 Weifen Zeng affiliated with any hospitals?
According to CMS data, Weifen Zeng 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 Weifen Zeng was last updated on December 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Weifen Zeng, MD · NPI 1336389923
Anatomic Pathology & Clinical Pathology physician in Leesburg, Virginia. Individual provider, active in the CMS NPPES registry since February 23, 2009.
## Identity
- **NPI:** 1336389923 (Entity type: Individual)
- **Enumerated:** February 23, 2009
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** 0101249796 (Virginia)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 44045 RIVERSIDE PKWY, Leesburg, VA 20176-5101
- **Phone:** (703) 858-6000 · **Fax:** (703) 858-6900
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Inova Health Care Services - Pathology (NPI 1427369578, Falls Church, VA); Prince William Pathology Associates, PC (NPI 1992019798, Manassas, VA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Southwest School Of Medicine And Hospital, class of 1992
## Record status
- **NPPES last updated:** December 23, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1336389923) · Data from the CMS NPPES public registry.