DR. STEPHAN JOHN KOSMORSKY D.O.
NPI 1518930429
Emergency Medicine in Newtown, PA
About Dr. Stephan John Kosmorsky D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHAN JOHN KOSMORSKY D.O. (NPI 1518930429) is an individual emergency medicine provider in Newtown, Pennsylvania, licensed in Pennsylvania (OS004621L) and active in the NPI registry since February 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)
Dr. Stephan John Kosmorsky D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
6Medicare enrollment records show Stephan Kosmorsky reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Langhorne, PA 19047
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: Emergency Care Services Of Pennsylvania PC
- 329 clinicians in this Medicare group
Yardley, PA 19067
- Reassigned Medicare billing, Pennsylvania enrollment
- 447 clinicians in this Medicare group
Yardley, PA 19067
- Reassigned Medicare billing, Pennsylvania enrollment
- 360 clinicians in this Medicare group
Philadelphia, PA 19128
- Reassigned Medicare billing, Pennsylvania enrollment
- 49 clinicians in this Medicare group
Hanover, PA 17331
- Reassigned Medicare billing, Pennsylvania enrollment
- 298 clinicians in this Medicare group
Clewiston, FL 33440
- Reassigned Medicare billing, Pennsylvania enrollment
- 38 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 18940 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Stephan Kosmorsky's NPI number?
The NPI number for Stephan Kosmorsky is 1518930429. It was assigned to this individual provider in the NPPES registry on February 10, 2006.
Where is Stephan Kosmorsky located?
Stephan Kosmorsky practices at 23 Cambridge Ln, Newtown, PA 18940. The listed phone number is (215) 504-0414.
What is Stephan Kosmorsky's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Stephan Kosmorsky enrolled in Medicare?
Yes. Stephan Kosmorsky is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Stephan Kosmorsky's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephan Kosmorsky reassigns Medicare benefits to 6 organizations: Emergency Care Services Of Pennsylvania, P.C. (Langhorne, PA), Temple Physicians Inc (Yardley, PA), Hr Physician Services (Yardley, PA), Medical Services Of Suffolk County PC (Philadelphia, PA), Emergency Physician Associates Of Pennsylvania, PC (Hanover, PA) 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 Stephan Kosmorsky'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 Stephan Kosmorsky was last updated on March 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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. Stephan John Kosmorsky, D.O. · NPI 1518930429
Emergency Medicine physician in Newtown, Pennsylvania. Individual provider, active in the CMS NPPES registry since February 10, 2006.
## Identity
- **NPI:** 1518930429 (Entity type: Individual)
- **Enumerated:** February 10, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** OS004621L (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 23 CAMBRIDGE LN, Newtown, PA 18940-3326
- **Phone:** (215) 504-0414 · **Fax:** (215) 504-4002
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Emergency Care Services Of Pennsylvania, P.C. (NPI 1114955010, Langhorne, PA); Temple Physicians Inc (NPI 1790512481, Yardley, PA); Hr Physician Services (NPI 1912449034, Yardley, PA); Medical Services Of Suffolk County PC (NPI 1811235724, Philadelphia, PA); Emergency Physician Associates Of Pennsylvania, PC (NPI 1619990900, Hanover, PA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 23, 2016
- **Other identifiers:** Medicare UPIN D71616 (PA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1518930429) · Data from the CMS NPPES public registry.