WINCHESTER EMERGENCY MEDICAL ASSOCIATES
NPI 1831131473
Emergency Medicine in Winchester, MA
About Winchester Emergency Medical Associates NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WINCHESTER EMERGENCY MEDICAL ASSOCIATES (NPI 1831131473) is a healthcare organization registered as an emergency medicine in Winchester, Massachusetts and active in the NPI registry since June 2006. The organization lists Gregory Weisz, Director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Winchester Emergency Medical Associates is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by March 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
39Medicare enrollment records show 39 clinicians reassign Medicare billing to Winchester Emergency Medical Associates, which bills Medicare for the services they deliver. Of these, 12 practice at this address and 24 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 3
Nearest to this location (20)
See all 39Winchester, MA 01890
Winchester, MA 01890
Burlington, MA 01805
Boston, MA 02135
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 Winchester Emergency Medical Associates PC's NPI number?
The NPI number for Winchester Emergency Medical Associates PC is 1831131473. It was assigned to this organization in the NPPES registry on June 11, 2006. The provider is doing business as Winchester Emergency Medical Associates.
Where is Winchester Emergency Medical Associates PC located?
Winchester Emergency Medical Associates PC is located at 41 Highland Ave, Winchester, MA 01890. The listed phone number is (781) 756-7273.
What is Winchester Emergency Medical Associates PC's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Winchester Emergency Medical Associates PC enrolled in Medicare?
Yes. Winchester Emergency Medical Associates PC is registered in the Medicare PECOS enrollment system.
When is Winchester Emergency Medical Associates PC's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Massachusetts, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Winchester Emergency Medical Associates PC?
According to the CMS Revalidation Reassignment List (October 2026 release), 39 clinicians in 3 Medicare specialties reassign their Medicare billing to Winchester Emergency Medical Associates PC. 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 (23), Nurse Practitioner (15) and Pediatric Medicine (1). Of these, 12 practice at this address and 24 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 Winchester Emergency Medical Associates PC was last updated on May 9, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Winchester Emergency Medical Associates · NPI 1831131473
Emergency Medicine organization in Winchester, Massachusetts. Organization record, active in the CMS NPPES registry since June 11, 2006.
## Identity
- **NPI:** 1831131473 (Entity type: Organization)
- **Enumerated:** June 11, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **Legal business name:** Winchester Emergency Medical Associates Pc
- **Organization subpart:** No
- **Authorized official:** Gregory Weisz, DIRECTOR
## Practice location
- **Address:** 41 HIGHLAND AVE, Winchester, MA 01890-1446
- **Phone:** (781) 756-7273 · **Fax:** (781) 756-7274
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** March 31, 2027 (Non-DME Part B, Massachusetts, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 39 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Emergency Medicine (23), Nurse Practitioner (15), Pediatric Medicine (1); 12 practice at this address and 24 within 10 miles; [full list](https://npiprofile.com/npi/1831131473/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 9, 2013
- **Other identifiers:** Medicare ID-Type Unspecified M20891 (MA); Medicaid 9703179 (MA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1831131473) · Data from the CMS NPPES public registry.