DR. PRIYA ELIZABETH MAMMEN MD
NPI 1780845297
Emergency Medicine in Philadelphia, PA
About Dr. Priya Elizabeth Mammen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PRIYA ELIZABETH MAMMEN MD (NPI 1780845297) is an individual emergency medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD434293) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS, is affiliated with Milton S Hershey Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Priya Elizabeth Mammen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Priya Mammen reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gilbertsville, PA 19525
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,895 clinicians in this Medicare group
Dover, DE 19901
- Reassigned Medicare billing, Delaware enrollment
- 84 clinicians in this Medicare group
Dover, DE 19901
- Reassigned Medicare billing, Delaware enrollment
- 142 clinicians in this Medicare group
Hershey, PA 17033
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,216 clinicians in this Medicare group
Thibodaux, LA 70301
- Reassigned Medicare billing, Louisiana enrollment
- 104 clinicians in this Medicare group
Lake Charles, LA 70601
- Reassigned Medicare billing, Louisiana enrollment
- 167 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Milton S Hershey Medical Center
Acute Care Hospitals · Hershey, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19107 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19107
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 Priya Mammen's NPI number?
The NPI number for Priya Mammen is 1780845297. It was assigned to this individual provider in the NPPES registry on June 18, 2008.
Where is Priya Mammen located?
Priya Mammen practices at 1020 Sansom St Suite 239, Philadelphia, PA 19107. The listed phone number is (215) 955-6844.
What is Priya Mammen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Priya Mammen enrolled in Medicare?
Yes. Priya Mammen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Priya Mammen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Priya Mammen reassigns Medicare benefits to 6 organizations: Lehigh Valley Physician Group (Gilbertsville, PA), Bayhealth Medical Center, Inc. (Dover, DE), Bayhealth Emergency Physicians LLC (Dover, DE), The Milton S Hershey Medical Center Physicians Group (Hershey, PA), Thibodaux Emergency Physicians Group LLC (Thibodaux, LA) and 1 more organization, listed in the Medicare section above. Each 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 Priya Mammen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Priya Mammen affiliated with any hospitals?
According to CMS data, Priya Mammen is affiliated with Milton S Hershey Medical Center.
When was this NPI record last updated?
The NPPES record for Priya Mammen was last updated on January 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Dr. Priya Elizabeth Mammen, MD · NPI 1780845297
Emergency Medicine physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 18, 2008.
## Identity
- **NPI:** 1780845297 (Entity type: Individual)
- **Enumerated:** June 18, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD434293 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 1020 SANSOM ST, SUITE 239, Philadelphia, PA 19107-5002
- **Phone:** (215) 955-6844 · **Fax:** (215) 955-2526
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Lehigh Valley Physician Group (NPI 1164269965, Gilbertsville, PA); Bayhealth Medical Center, Inc. (NPI 1679072144, Dover, DE); Bayhealth Emergency Physicians LLC (NPI 1073012696, Dover, DE); The Milton S Hershey Medical Center Physicians Group (NPI 1538134234, Hershey, PA); Thibodaux Emergency Physicians Group LLC (NPI 1568910503, Thibodaux, LA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 2005
## Record status
- **NPPES last updated:** January 13, 2026
- **Other identifiers:** Medicaid 0169692 (NJ); Medicaid 102189701 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1780845297) · Data from the CMS NPPES public registry.