STEVEN J SONDHEIMER MD
NPI 1245265123
Obstetrics & Gynecology in Philadelphia, PA
About Steven J Sondheimer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEVEN J SONDHEIMER MD (NPI 1245265123) is an individual obstetrics & gynecology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD016934E) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Steven J Sondheimer Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Steven Sondheimer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19104
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,488 clinicians in this Medicare group
Parkesburg, PA 19365
- Reassigned Medicare billing, Pennsylvania enrollment
- 215 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19104 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 19104
PHILADELPHIA, PA 19104
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 Steven Sondheimer's NPI number?
The NPI number for Steven Sondheimer is 1245265123. It was assigned to this individual provider in the NPPES registry on July 11, 2006.
Where is Steven Sondheimer located?
Steven Sondheimer practices at 3400 Spruce St, Philadelphia, PA 19104. The listed phone number is (215) 615-5234.
What is Steven Sondheimer's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Steven Sondheimer enrolled in Medicare?
Yes. Steven Sondheimer is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Steven Sondheimer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Sondheimer reassigns Medicare benefits to 2 organizations: University Of Penn-Medical Group (Philadelphia, PA) and Lancaster General Hospital (Parkesburg, 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 Steven Sondheimer'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 Steven Sondheimer was last updated on October 18, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.