EMERGENCY SERVICE ASSOCIATES PA
NPI 1558340562
Emergency Medicine in Salisbury, MD
About Emergency Service Associates Pa NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EMERGENCY SERVICE ASSOCIATES PA (NPI 1558340562) is a healthcare organization registered as an emergency medicine in Salisbury, Maryland and active in the NPI registry since January 2006. The organization lists Jeffrey T Greenwood, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 6
Group Practice 1
Accepted Insurance
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)
Emergency Service Associates Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by January 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
62Medicare enrollment records show 62 clinicians reassign Medicare billing to Emergency Service Associates PA, which bills Medicare for the services they deliver. Of these, 9 practice at this address and 19 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 62Source: 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 Service Associates PA's NPI number?
The NPI number for Emergency Service Associates PA is 1558340562. It was assigned to this organization in the NPPES registry on January 10, 2006.
Where is Emergency Service Associates PA located?
Emergency Service Associates PA is located at 100 E Carroll St, Salisbury, MD 21801. The listed phone number is (410) 543-7100.
What is Emergency Service Associates PA's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Emergency Service Associates PA enrolled in Medicare?
Yes. Emergency Service Associates PA is registered in the Medicare PECOS enrollment system.
When is Emergency Service Associates PA'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 (Maryland, Clinic/Group Practice) is due for revalidation by January 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 Emergency Service Associates PA?
According to the CMS Revalidation Reassignment List (October 2026 release), 62 clinicians in 3 Medicare specialties reassign their Medicare billing to Emergency Service Associates PA. 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 (44), Nurse Practitioner (17) and Pediatric Medicine (1). Of these, 9 practice at this address and 19 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Emergency Service Associates PA accept?
Health plans from Highmark Blue Cross Blue Shield Delaware list Emergency Service Associates PA as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Emergency Service Associates PA was last updated on September 23, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Emergency Service Associates Pa · NPI 1558340562
Emergency Medicine organization in Salisbury, Maryland. Organization record, active in the CMS NPPES registry since January 10, 2006.
## Identity
- **NPI:** 1558340562 (Entity type: Organization)
- **Enumerated:** January 10, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **Organization subpart:** No
- **Authorized official:** Jeffrey Greenwood, PRESIDENT
## Practice location
- **Address:** 100 E CARROLL ST, Salisbury, MD 21801-5422
- **Phone:** (410) 543-7100 · **Fax:** (410) 546-6350
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** January 31, 2027 (Non-DME Part B, Maryland, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 62 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Emergency Medicine (44), Nurse Practitioner (17), Pediatric Medicine (1); 9 practice at this address and 19 within 10 miles; [full list](https://npiprofile.com/npi/1558340562/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 23, 2014
- **Other identifiers:** Medicaid 905061203 (MD); Medicaid 905061202 (MD); Medicare PIN S450 (MD); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1558340562) · Data from the CMS NPPES public registry.