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FAIR OAKS EMERGENCY PHYSICIANS, PLLC
NPI 1649203605
Emergency Medicine - Emergency Medical Services in Fairfax, VA

Active since July 09, 2006
3600 JOSEPH SIEWICK DR, FAIRFAX, VA 22033(703) 391-3996(703) 391-3094 Get Directions Write a Review

NPPES record last updated: May 4, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Fair Oaks Emergency Physicians, Pllc NPPES

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

FAIR OAKS EMERGENCY PHYSICIANS, PLLC (NPI 1649203605) is a healthcare organization registered as an emergency medical services in Fairfax, Virginia and active in the NPI registry since July 2006. The organization lists John Jones, Group Head, as its authorized official.

NPPES Registry Identity

NPI1649203605
Entity TypeOrganization
Primary Taxonomy207PE0004X
Legal Business NameFAIR OAKS EMERGENCY PHYSICIANS, PLLC
Location Address3600 JOSEPH SIEWICK DRFairfax, VA 22033-1709
Mailing AddressPo Box 734980Chicago, IL 60673-4980 · (703) 631-1745 · Fax (703) 662-4803
Phone(703) 391-3996
Fax(703) 391-3094
Organization SubpartNo
Authorized OfficialJohn JonesGroup Head · (571) 239-0788
Enumeration DateJuly 9, 2006
Last NPPES UpdateMay 4, 2023
NPPES CertifiedMay 4, 2023
✔ NPI 1649203605 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency Medicine · Emergency Medical ServicesAllopathic & Osteopathic Physicians
Taxonomy Code207PE0004X
Definition
An emergency medicine physician who specializes in non-hospital based emergency medical services (e.g., disaster site, accident scene, transport vehicle, etc.) to provide pre-hospital assessment, treatment, and transport patients.
3600 JOSEPH SIEWICK DR, Fairfax, VA 22033
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Other Identifiers 1

OtherDB5359Railroad Medicare

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Fair Oaks Emergency Physicians, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

71

Medicare enrollment records show 71 clinicians reassign Medicare billing to Fair Oaks Emergency Physicians, PLLC, which bills Medicare for the services they deliver. Of these, 5 practice at this address and 13 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 4

Emergency Medicine53
Nurse Practitioner14
Internal Medicine3
Sports Medicine1

Nearest to this location (20)

See all 71
Angela Brown, M.D.
Emergency Medicine
NPI 1477810976
3600 JOSEPH SIEWICK DR
Fairfax, VA 22033
(903) 808-2199
✔ PECOS✔ Accepts MedicareSame address
Crystal Donelan, MD
Emergency Medicine
NPI 1679070668
3600 JOSEPH SIEWICK DR
Fairfax, VA 22033
(703) 391-3600
✔ PECOSSame address
John Jones, MD
Emergency Medicine
NPI 1144206855
3600 JOSEPH SIEWICK DR
Fairfax, VA 22033
(703) 391-3996
✔ PECOSSame address
Raymond Kessler, MD
Emergency Medicine
NPI 1336644251
3600 JOSEPH SIEWICK DR
Fairfax, VA 22033
(504) 702-2287
✔ PECOSSame address
Lisa Leonard, FNP
Nurse Practitioner
NPI 1952726739
3600 JOSEPH SIEWICK DR
Fairfax, VA 22033
(703) 391-3600
✔ PECOS✔ Accepts MedicareSame address
Mark Franke, MD
Emergency Medicine
NPI 1114934650
3650 JOSEPH SIEWICK DR STE 101
Fairfax, VA 22033
(703) 391-2020
✔ PECOS✔ Accepts Medicare0.1 mi
Robert Langenohl
Emergency Medicine
NPI 1457719023
9300 DEWITT LOOP
Fort Belvoir, VA 22060
(571) 231-3224
✔ PECOS✔ Accepts Medicare5.5 mi
Rajat Chand, MD
Emergency Medicine
NPI 1336244326
3300 GALLOWS RD
Falls Church, VA 22042
(703) 776-3111
✔ PECOS✔ Accepts Medicare8.5 mi
Judith Mechanick, MD
Emergency Medicine
NPI 1346291945
3300 GALLOWS RD
Falls Church, VA 22042
(703) 776-3111
✔ PECOS8.5 mi
Paul Tripathi, MD
Emergency Medicine
NPI 1215989371
3300 GALLOWS RD
Falls Church, VA 22042
(703) 776-3111
✔ PECOS✔ Accepts Medicare8.5 mi
Jennifer King, MD
Emergency Medicine
NPI 1245333533
4315 CHAIN BRIDGES ROAD
Falls Church, VA 22030
(703) 776-3111
✔ PECOS✔ Accepts Medicare8.5 mi
Eric Ahlers, M.D.
Emergency Medicine
NPI 1023452083
8700 SUDLEY RD
Manassas, VA 20110
(703) 369-8000
✔ PECOS✔ Accepts Medicare10.0 mi
Sarah Foster, MD
Emergency Medicine
NPI 1639524960
8700 SUDLEY RD
Manassas, VA 20110
(703) 369-8337
✔ PECOS✔ Accepts Medicare10.0 mi
Mechelle Ledwith, FNP-BC
Nurse Practitioner
NPI 1891170833
6230 ROLLING RD SUITE J
Springfield, VA 22152
(571) 665-6460
✔ PECOS11 mi
Laura Burke, NP
Nurse Practitioner
NPI 1811357585
44055 RIVERSIDE PKWY STE 238
Leesburg, VA 20176
(703) 858-8879
✔ PECOS✔ Accepts Medicare14 mi
Somera Chaudhry, MD
Internal Medicine
NPI 1932595360
44045 RIVERSIDE PKWY
Leesburg, VA 20176
(703) 858-6000
✔ PECOS✔ Accepts Medicare14 mi
Allison Fuentes
Nurse Practitioner
NPI 1639583826
3301 WILSON BLVD
Arlington, VA 22201
(703) 236-7133
✔ PECOS15 mi
Brittany Hartman, MD
Emergency Medicine
NPI 1699390732
4320 SEMINARY RD
Alexandria, VA 22304
(703) 504-3000
✔ PECOS15 mi
James Evans, M.D.
Emergency Medicine
NPI 1932249521
4330 E WEST HWY STE 1000
Bethesda, MD 20814
(240) 330-1062
✔ PECOS17 mi
Jafer Abidi, MD
Internal Medicine
NPI 1356784102
20010 CENTURY BLVD STE 200
Germantown, MD 20874
(240) 686-2300
✔ PECOS✔ Accepts Medicare22 mi
See all 71 clinicians

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

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 Fair Oaks Emergency Physicians, PLLC's NPI number?

The NPI number for Fair Oaks Emergency Physicians, PLLC is 1649203605. It was assigned to this organization in the NPPES registry on July 9, 2006.

Where is Fair Oaks Emergency Physicians, PLLC located?

Fair Oaks Emergency Physicians, PLLC is located at 3600 Joseph Siewick Dr, Fairfax, VA 22033. The listed phone number is (703) 391-3996.

What is Fair Oaks Emergency Physicians, PLLC's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.

Is Fair Oaks Emergency Physicians, PLLC enrolled in Medicare?

Yes. Fair Oaks Emergency Physicians, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Fair Oaks Emergency Physicians, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 71 clinicians in 4 Medicare specialties reassign their Medicare billing to Fair Oaks Emergency Physicians, PLLC. 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 Emergency Medicine (53), Nurse Practitioner (14) and Internal Medicine (3). Of these, 5 practice at this address and 13 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Fair Oaks Emergency Physicians, PLLC was last updated on May 4, 2023. 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.