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NEUROLOGY CENTER OF FAIRFAX, LTD
NPI 1346285681
Psychiatry & Neurology - Neurology in Fairfax, VA

Active since June 19, 2006CLIA 49D2245288 · Waiver
3020 HAMAKER CT, SUITE 400, FAIRFAX, VA 22031(703) 876-0800(703) 876-0866 Get Directions Write a Review

NPPES record last updated: March 3, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 3, 2022, Dec 29, 2020 (2 updates tracked since 2020).

About Neurology Center Of Fairfax, Ltd NPPES

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

NEUROLOGY CENTER OF FAIRFAX, LTD (NPI 1346285681) is a healthcare organization registered as a neurology in Fairfax, Virginia and active in the NPI registry since June 2006. The organization holds a CLIA Waiver certificate valid through December 9, 2027 and lists James P Simsarian, Director, as its authorized official.

NPPES Registry Identity

NPI1346285681
Entity TypeOrganization
Primary Taxonomy2084N0400X
Legal Business NameNEUROLOGY CENTER OF FAIRFAX, LTD
Location Address3020 HAMAKER CT, SUITE 400Fairfax, VA 22031-2238
Mailing Address3020 Hamaker Ct, Suite 400Fairfax, VA 22031-2238 · (703) 876-0800 · Fax (703) 876-0866
Phone(703) 876-0800
Fax(703) 876-0866
Organization SubpartNo
Authorized OfficialJames P SimsarianDirector · (703) 876-0800
Enumeration DateJune 19, 2006
Last NPPES UpdateMarch 3, 20222 updates tracked since enumeration
NPPES CertifiedMarch 3, 2022
✔ NPI 1346285681 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · NeurologyAllopathic & Osteopathic Physicians
Taxonomy Code2084N0400X
Definition
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.
3020 HAMAKER CT, Fairfax, VA 22031
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Neurology Center Of Fairfax, Ltd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

18

Medicare enrollment records show 18 clinicians reassign Medicare billing to Neurology Center Of Fairfax, Ltd, which bills Medicare for the services they deliver. Of these, 15 practice at this address and 18 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 2

Neurology15
Nurse Practitioner3

Clinicians, nearest first (18)

Meagan Adamson, DNP, FNP-BC, MSCN
Nurse Practitioner
NPI 1790061091
3020 HAMAKER CT SUITE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOSSame address
Candace Bryan, M.D.
Neurology
NPI 1376750133
3020 HAMAKER CT SUITE #400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Marco Castro, M.D.
Neurology
NPI 1245209766
3020 HAMAKER CT SUITE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Matthew Churchill, M.D.
Neurology
NPI 1235335993
3020 HAMAKER CT SUITE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Nicole Dietz, MD, PHD
Neurology
NPI 1265595623
3020 HAMAKER CT SUITE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Ryan Dunlow, MD
Neurology
NPI 1568048031
3020 HAMAKER CT STE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOSSame address
Robert Kurtzke, M.D.
Neurology
NPI 1922067164
3020 HAMAKER CT SUITE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Lindsey Lee, NP
Nurse Practitioner
NPI 1891207023
3020 HAMAKER CT STE 400
Fairfax, VA 22031
(703) 876-2647
✔ PECOSSame address
Richard Monti, M.D.
Neurology
NPI 1124414164
3020 HAMAKER CT STE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Siddharth Ninan, MD
Neurology
NPI 1285123372
3020 HAMAKER CT STE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Richard Seestedt, M.D.
Neurology
NPI 1104895630
3020 HAMAKER CT SUITE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
James Simsarian, M.D.
Neurology
NPI 1235108986
3020 HAMAKER CT SUITE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Randolph Stephenson, MD
Neurology
NPI 1538352430
3020 HAMAKER CT SUITE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Amy Stone, M.D.
Neurology
NPI 1235108770
3020 HAMAKER CT SUITE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOS✔ Accepts MedicareSame address
Marina Treglia, CNP
Nurse Practitioner
NPI 1114338308
3020 HAMAKER CT STE 400
Fairfax, VA 22031
(703) 876-0800
✔ PECOSSame address
Richard Cho, M.D.
Neurology
NPI 1316110125
1830 TOWN CENTER DR SUITE 305
Reston, VA 20190
(703) 478-0601
✔ PECOS✔ Accepts Medicare9.5 mi
Robert Richard, M.D.
Neurology
NPI 1750350989
1830 TOWN CENTER DR SUITE 305
Reston, VA 20190
(703) 478-0601
✔ PECOS✔ Accepts Medicare9.5 mi
Mark Tekrony, PH.D., M.D.
Neurology
NPI 1386613826
1830 TOWN CENTER DR STE 305
Reston, VA 20190
(703) 876-0800
✔ PECOS✔ Accepts Medicare9.5 mi

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

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 of Waiver 49D2245288

Neurology Center Of Fairfax Ltd · Fairfax, VA
Active · expires Dec 9, 2027
CLIA Number49D2245288
Laboratory TypePhysician Office
Certificate Effective DateDecember 10, 2025
Certificate Expiration DateDecember 9, 2027
Laboratory DirectorJames P. Simsarian
Laboratory Phone(703) 876-0800
Laboratory LocationNeurology Center Of Fairfax Ltd3020 Hamaker Ct Suite 400, Fairfax, VA 22031
CLIA data matches this NPI record on: Address 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 Neurology Center Of Fairfax, Ltd's NPI number?

The NPI number for Neurology Center Of Fairfax, Ltd is 1346285681. It was assigned to this organization in the NPPES registry on June 19, 2006.

Where is Neurology Center Of Fairfax, Ltd located?

Neurology Center Of Fairfax, Ltd is located at 3020 Hamaker Ct Suite 400, Fairfax, VA 22031. The listed phone number is (703) 876-0800.

What is Neurology Center Of Fairfax, Ltd's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.

Is Neurology Center Of Fairfax, Ltd enrolled in Medicare?

Yes. Neurology Center Of Fairfax, Ltd is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Neurology Center Of Fairfax, Ltd?

According to the CMS Revalidation Reassignment List (October 2026 release), 18 clinicians in 2 Medicare specialties reassign their Medicare billing to Neurology Center Of Fairfax, Ltd. 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 Neurology (15) and Nurse Practitioner (3). Of these, 15 practice at this address and 18 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Neurology Center Of Fairfax, Ltd hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 49D2245288) is associated with this NPI, valid through December 9, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Neurology Center Of Fairfax, Ltd was last updated on March 3, 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.