EMERGENCY MEDICINE ASSOCIATES P.A., P.C.
NPI 1811852148
Emergency Medicine in Reston, VA
About Emergency Medicine Associates P.a., P.c. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EMERGENCY MEDICINE ASSOCIATES P.A., P.C. (NPI 1811852148) is a healthcare organization registered as an emergency medicine in Reston, Virginia and active in the NPI registry since December 2025. The organization lists Jennifer Chastain, Director Of Credentialing And Pe, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Emergency Medicine Associates P.a., P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
1,147Medicare enrollment records show 1,147 clinicians reassign Medicare billing to Emergency Medicine Associates P.A., P.C., which bills Medicare for the services they deliver. Of these, 61 practice within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 18
Nearest to this location (20)
See all 1,147Reston, VA 20190
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 Emergency Medicine Associates P.A., P.C.'s NPI number?
The NPI number for Emergency Medicine Associates P.A., P.C. is 1811852148. It was assigned to this organization in the NPPES registry on December 18, 2025.
Where is Emergency Medicine Associates P.A., P.C. located?
Emergency Medicine Associates P.A., P.C. is located at 11901 Baron Cameron Ave, Reston, VA 20190. The listed phone number is (330) 493-4443.
What is Emergency Medicine Associates P.A., P.C.'s specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Emergency Medicine Associates P.A., P.C. enrolled in Medicare?
Yes. Emergency Medicine Associates P.A., P.C. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Emergency Medicine Associates P.A., P.C.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1,147 clinicians in 18 Medicare specialties reassign their Medicare billing to Emergency Medicine Associates P.A., P.C.. 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 (561), Internal Medicine (256) and Nurse Practitioner (129). Of these, 61 practice 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 Emergency Medicine Associates P.A., P.C. was last updated on December 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.
# Emergency Medicine Associates P.a., P.c. · NPI 1811852148
Emergency Medicine organization in Reston, Virginia. Organization record, active in the CMS NPPES registry since December 18, 2025.
## Identity
- **NPI:** 1811852148 (Entity type: Organization)
- **Enumerated:** December 18, 2025
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **Organization subpart:** No
- **Authorized official:** Jennifer Chastain, DIRECTOR OF CREDENTIALING AND PE
## Practice location
- **Address:** 11901 BARON CAMERON AVE, Reston, VA 20190-5892
- **Phone:** (330) 493-4443
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1,147 clinicians in 18 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Emergency Medicine (561), Internal Medicine (256), Nurse Practitioner (129); 61 practice within 10 miles; [full list](https://npiprofile.com/npi/1811852148/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 18, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1811852148) · Data from the CMS NPPES public registry.