STEPHEN THOM MD
NPI 1154360667
Emergency Medicine in Philadelphia, PA
About Stephen Thom Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEPHEN THOM MD (NPI 1154360667) is an individual emergency medicine provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD037634E) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Stephen Thom Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Stephen Thom reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 234 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 108 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 2
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 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
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 Stephen Thom's NPI number?
The NPI number for Stephen Thom is 1154360667. It was assigned to this individual provider in the NPPES registry on June 6, 2006.
Where is Stephen Thom located?
Stephen Thom practices at 3400 Spruce Street Ground Silverstein Bldg, Philadelphia, PA 19104. The listed phone number is (215) 662-6963.
What is Stephen Thom's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Stephen Thom enrolled in Medicare?
Yes. Stephen Thom is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Stephen Thom's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Thom reassigns Medicare benefits to 2 organizations: University Of Maryland Emergency Medicine Associates, PA (Baltimore, MD) and University Of Maryland Midtown Health Inc (Baltimore, MD). 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 Stephen Thom'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 Stephen Thom was last updated on February 28, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Stephen Thom, MD · NPI 1154360667
Emergency Medicine physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 6, 2006.
## Identity
- **NPI:** 1154360667 (Entity type: Individual)
- **Enumerated:** June 6, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD037634E (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE STREET, GROUND SILVERSTEIN BLDG, Philadelphia, PA 19104
- **Phone:** (215) 662-6963
## 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): University Of Maryland Emergency Medicine Associates, PA (NPI 1811704208, Baltimore, MD); University Of Maryland Midtown Health Inc (NPI 1710347729, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 28, 2013
- **Other identifiers:** Medicare UPIN C31333; Medicaid 0010821540002 (PA); Medicare PIN 135666 (PA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1154360667) · Data from the CMS NPPES public registry.