NEIGHBORHOOD HEALTH AT MERRIFIELD CENTER
NPI 1003354416
Clinic/Center - Federally Qualified Health Center (FQHC) in Fairfax, VA

Active since February 06, 2017CLIA Certified · 7 labs
8221 WILLOW OAKS CORPORATE DR, FAIRFAX, VA 22031(703) 535-5568(703) 299-1794 Get Directions Write a Review

NPPES record last updated: February 6, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Neighborhood Health At Merrifield Center NPPES

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

NEIGHBORHOOD HEALTH AT MERRIFIELD CENTER (NPI 1003354416) is a healthcare organization registered as a federally qualified health center (fqhc) in Fairfax, Virginia and active in the NPI registry since February 2017. The organization holds 7 active CLIA laboratory certificates and lists Basim Khan, Ceo, as its authorized official.

NPPES Registry Identity

NPI1003354416
Entity TypeOrganization
Primary Taxonomy261QF0400X
Legal Business NameNEIGHBORHOOD HEALTH
Location Address8221 WILLOW OAKS CORPORATE DRFairfax, VA 22031-4512
Mailing AddressPo Box 4320Glen Allen, VA 23058-4320 · (804) 237-7690 · Fax (804) 237-7697
Fax(703) 299-1794
Organization SubpartNo
Authorized OfficialBasim KhanCeo · (703) 535-5568
Enumeration DateFebruary 6, 2017
✔ NPI 1003354416 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Federally Qualified Health Center (FQHC)Ambulatory Health Care Facilities
Taxonomy Code261QF0400X
8221 WILLOW OAKS CORPORATE DR, Fairfax, VA 22031

Other Names 1

Doing Business AsNeighborhood Health At Merrifield Center

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Neighborhood Health At Merrifield Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

58

Medicare enrollment records show 58 clinicians reassign Medicare billing to Neighborhood Health At Merrifield Center, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 29 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 10

Nurse Practitioner17
Family Practice14
Pediatric Medicine10
Internal Medicine5
Obstetrics/Gynecology4
Clinical Social Worker2
Optometry2
Psychiatry2
2 other specialties2

Nearest to this location (20)

See all 58
Nurse Practitioner
NPI 1922453711
8221 WILLOW OAKS CORPORATE DR 450
Fairfax, VA 22031
(703) 289-7560
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1356948079
8301 ARLINGTON BLVD STE 100
Fairfax, VA 22031
(301) 938-0575
✔ PECOS✔ Accepts Medicare0.2 mi
Pediatric Medicine
NPI 1457880759
3300 GALLOWS RD
Falls Church, VA 22042
(703) 776-7834
✔ PECOS✔ Accepts Medicare0.6 mi
Family Practice
NPI 1205932910
2944 HUNTER MILL RD STE 101
Oakton, VA 22124
(571) 529-6699
✔ PECOS3.9 mi
Pediatric Medicine
NPI 1558543017
8988 FERN PARK DR
Burke, VA 22015
(703) 978-6061
✔ PECOS4.0 mi
Pediatric Medicine
NPI 1144433590
407 N. WASHINGTON STREET SUITE 100
Falls Church, VA 22046
(703) 237-5919
✔ PECOS4.0 mi
Obstetrics/Gynecology
NPI 1912193970
6400 ARLINGTON BLVD STE 510
Falls Church, VA 22042
(571) 425-4100
✔ PECOS✔ Accepts Medicare4.0 mi
Psychiatry
NPI 1114283348
2960 SLEEPY HOLLOW RD
Falls Church, VA 22044
(703) 538-2872
✔ PECOS✔ Accepts Medicare4.1 mi
Family Practice
NPI 1447478425
6932 FAIRFAX DR UNIT 400
Arlington, VA 22213
(608) 643-3351
✔ PECOS✔ Accepts Medicare4.1 mi
Nurse Practitioner
NPI 1659913143
6715 LITTLE RIVER TPKE STE 201
Annandale, VA 22003
(703) 535-5568
✔ PECOS✔ Accepts Medicare4.1 mi
Pediatric Medicine
NPI 1962061630
6715 LITTLE RIVER TPKE STE 201
Annandale, VA 22003
(703) 535-5568
✔ PECOS4.1 mi
Internal Medicine
NPI 1821432097
8008 WESTPARK DR
Mc Lean, VA 22102
(703) 287-6400
✔ PECOS✔ Accepts Medicare4.6 mi
Psychiatry
NPI 1043493372
4850 MARK CENTER DR
Alexandria, VA 22311
(703) 746-3400
✔ PECOS✔ Accepts Medicare6.6 mi
Nurse Practitioner
NPI 1669105151
4850 MARK CENTER DR STE 301
Alexandria, VA 22311
(703) 535-5568
✔ PECOS6.6 mi
Family Practice
NPI 1548885494
4850 MARK CENTER DR
Alexandria, VA 22311
(703) 535-5568
✔ PECOS✔ Accepts Medicare6.6 mi
Obstetrics/Gynecology
NPI 1669600862
4320 SEMINARY RD LABOR AND DELIVERY C/O DR. THOMAS BURNS
Alexandria, VA 22304
(703) 504-3314
✔ PECOS✔ Accepts Medicare7.5 mi
Optometry
NPI 1457978504
2301 COLUMBIA PIKE
Arlington, VA 22204
(703) 535-5568
✔ PECOS8.1 mi
Pediatric Medicine
NPI 1770046401
2 E GLEBE RD
Alexandria, VA 22305
(703) 535-5568
✔ PECOS9.1 mi
Internal Medicine
NPI 1477880045
2 E GLEBE RD
Alexandria, VA 22305
(703) 535-5568
✔ PECOS✔ Accepts Medicare9.7 mi
Clinical Social Worker
NPI 1821234733
2 E GLEBE RD
Alexandria, VA 22305
(703) 535-5568
✔ PECOS✔ Accepts Medicare9.7 mi
See all 58 clinicians

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

CLIA Laboratory Certificates CMS CLIA 7

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 49D2168865

Neighborhood Health · Fairfax, VA
Active · expires Jul 9, 2027
CLIA Number49D2168865
Laboratory TypeFederally Qualified Health Center
Certificate Effective DateJuly 10, 2025
Certificate Expiration DateJuly 9, 2027
Laboratory DirectorMartha Welman
Laboratory Phone(703) 535-5568
Laboratory LocationNeighborhood Health8221 Willow Oaks Corporate Dr Ste 450, Fairfax, VA 22031
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Certificate of Waiver 49D2072638

Neighborhood Health Services · Alexandria, VA
Active · expires Feb 3, 2028
CLIA Number49D2072638
Laboratory TypeFederally Qualified Health Center
Certificate Effective DateFebruary 4, 2026
Certificate Expiration DateFebruary 3, 2028
Laboratory DirectorMartha Welman
Laboratory Phone(703) 535-5568
Laboratory LocationNeighborhood Health Services6677 Richmond Highway, Alexandria, VA 22306
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 49D1049657

Neighborhood Health · Alexandria, VA
Active · expires Jan 11, 2028
CLIA Number49D1049657
Laboratory TypeCommunity Clinic
Certificate Effective DateJanuary 12, 2026
Certificate Expiration DateJanuary 11, 2028
Laboratory DirectorMartha Welman
Laboratory Phone(703) 535-5568
Laboratory LocationNeighborhood Health2 E Glebe Road, Alexandria, VA 22305
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Certificate of Waiver 49D2069881

Neighborhood Health · Alexandria, VA
Active · expires Dec 4, 2027
CLIA Number49D2069881
Laboratory TypeFederally Qualified Health Center
Certificate Effective DateDecember 5, 2025
Certificate Expiration DateDecember 4, 2027
Laboratory DirectorMartha Welman
Laboratory Phone(703) 535-5568
Laboratory LocationNeighborhood Health8119 Holland Road Gartlan Center, Alexandria, VA 22306
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 49D2168879

Neighborhood Health · Alexandria, VA
Active · expires Jul 9, 2027
CLIA Number49D2168879
Laboratory TypeFederally Qualified Health Center
Certificate Effective DateJuly 10, 2025
Certificate Expiration DateJuly 9, 2027
Laboratory DirectorMartha Welman
Laboratory Phone(703) 535-5568
Laboratory LocationNeighborhood Health8350 Richmond Hwy, Suite 301, Alexandria, VA 22309
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Certificate of Waiver 49D2020072

Neighborhood Health · Arlington, VA
Active · expires Feb 10, 2027
CLIA Number49D2020072
Laboratory TypeFederally Qualified Health Center
Certificate Effective DateFebruary 11, 2025
Certificate Expiration DateFebruary 10, 2027
Laboratory DirectorMartha Welman
Laboratory Phone(703) 535-5568
Laboratory LocationNeighborhood Health2100 Washington Boulevard, Suite 294 Arlington Csb, Arlington, VA 22204
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Neighborhood Health's NPI number?

The NPI number for Neighborhood Health is 1003354416. It was assigned to this organization in the NPPES registry on February 6, 2017. The provider is doing business as Neighborhood Health At Merrifield Center.

Where is Neighborhood Health located?

Neighborhood Health is located at 8221 Willow Oaks Corporate Dr, Fairfax, VA 22031. The listed phone number is (703) 535-5568.

What is Neighborhood Health's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Federally Qualified Health Center (FQHC), with taxonomy code 261QF0400X.

Is Neighborhood Health enrolled in Medicare?

Yes. Neighborhood Health is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Neighborhood Health?

According to the CMS Revalidation Reassignment List (October 2026 release), 58 clinicians in 10 Medicare specialties reassign their Medicare billing to Neighborhood Health. A 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 the clinician's services. The largest specialties are Nurse Practitioner (17), Family Practice (14) and Pediatric Medicine (10). Of these, 1 practice at this address and 29 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Neighborhood Health hold CLIA laboratory certificates?

Yes. 7 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

When was this NPI record last updated?

The NPPES record for Neighborhood Health was last updated on February 6, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.