DR. MARY CATHERINE SANTOS M.D.
NPI 1932136702
Surgery - Pediatric Surgery in Hershey, PA
About Dr. Mary Catherine Santos M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARY CATHERINE SANTOS M.D. (NPI 1932136702) is an individual pediatric surgery provider in Hershey, Pennsylvania, licensed in Pennsylvania (MD437277) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mary Catherine Santos M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mary Santos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hershey, PA 17033
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,216 clinicians in this Medicare group
Hershey, PA 17033
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,902 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
HERSHEY, PA 17033
HERSHEY, PA 17033
HERSHEY, PA 17033
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 Mary Santos's NPI number?
The NPI number for Mary Santos is 1932136702. It was assigned to this individual provider in the NPPES registry on June 27, 2006.
Where is Mary Santos located?
Mary Santos practices at 500 University Dr, Hershey, PA 17033. The listed phone number is (800) 243-1455.
What is Mary Santos's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.
Is Mary Santos enrolled in Medicare?
Yes. Mary Santos is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mary Santos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Santos reassigns Medicare benefits to 2 organizations: The Milton S Hershey Medical Center Physicians Group (Hershey, PA) and Pinnacle Health Medical Services (Hershey, PA). 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 Mary Santos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mary Santos was last updated on December 1, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Dr. Mary Catherine Santos, M.D. · NPI 1932136702
Pediatric Surgery physician in Hershey, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 27, 2006.
## Identity
- **NPI:** 1932136702 (Entity type: Individual)
- **Enumerated:** June 27, 2006
- **Primary specialty:** Surgery - Pediatric Surgery · taxonomy 2086S0120X
- **State license:** MD437277 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 500 UNIVERSITY DR, Hershey, PA 17033-2360
- **Phone:** (800) 243-1455
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): The Milton S Hershey Medical Center Physicians Group (NPI 1710951744, Hershey, PA); Pinnacle Health Medical Services (NPI 1679290688, Hershey, PA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 1, 2009
- **Other identifiers:** Medicaid 1023763010001 (PA); Medicare UPIN F32667; Medicare PIN 161614NZJ (PA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1932136702) · Data from the CMS NPPES public registry.