DR. STEVEN A FEINSTEIN MD
NPI 1104815356
Internal Medicine in Radnor, PA
About Dr. Steven A Feinstein Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN A FEINSTEIN MD (NPI 1104815356) is an individual internal medicine provider in Radnor, Pennsylvania, licensed in Pennsylvania (MD032211E) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Hospital Of Univ Of Pennsylvania, and is a graduate of Washington University School Of Medicine (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 8
Accepted Insurance
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. Steven A Feinstein 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
2Medicare enrollment records show Steven Feinstein reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19143
- Reassigned Medicare billing, Pennsylvania enrollment
- 752 clinicians in this Medicare group
Philadelphia, PA 19104
- Reassigned Medicare billing, Pennsylvania enrollment
- 199 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 8
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hospital Of Univ Of Pennsylvania
Acute Care Hospitals · Philadelphia, PAChester County Hospital
Acute Care Hospitals · West Chester, PAMain Line Hospital Lankenau
Acute Care Hospitals · Wynnewood, PAPenn Presbyterian Medical Center
Acute Care Hospitals · Philadelphia, PAPennsylvania Hospital
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19087 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 5
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
RADNOR, PA 19087
RADNOR, PA 19087
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 Feinstein's NPI number?
The NPI number for Steven Feinstein is 1104815356. It was assigned to this individual provider in the NPPES registry on October 20, 2005.
Where is Steven Feinstein located?
Steven Feinstein practices at 250 King Of Prussia Road, Radnor, PA 19087. The listed phone number is (610) 902-5600.
What is Steven Feinstein's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Steven Feinstein enrolled in Medicare?
Yes. Steven Feinstein 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 Steven Feinstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Feinstein reassigns Medicare benefits to 2 organizations: University Of Penn-Medical Group (Philadelphia, PA) and Trustees Of The University Of Pennsylvania (Philadelphia, 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 Feinstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Steven Feinstein accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Steven Feinstein as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Steven Feinstein affiliated with any hospitals?
According to CMS data, Steven Feinstein is affiliated with Hospital Of Univ Of Pennsylvania, Chester County Hospital, Main Line Hospital Lankenau, Penn Presbyterian Medical Center and Pennsylvania Hospital.
When was this NPI record last updated?
The NPPES record for Steven Feinstein was last updated on August 21, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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. Steven A Feinstein, MD · NPI 1104815356
Internal Medicine physician in Radnor, Pennsylvania. Individual provider, active in the CMS NPPES registry since October 20, 2005.
## Identity
- **NPI:** 1104815356 (Entity type: Individual)
- **Enumerated:** October 20, 2005
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD032211E (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 250 KING OF PRUSSIA ROAD, Radnor, PA 19087-5220
- **Phone:** (610) 902-5600
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): University Of Penn-Medical Group (NPI 1992301196, Philadelphia, PA); Trustees Of The University Of Pennsylvania (NPI 1124882949, Philadelphia, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Washington University School Of Medicine, class of 1983
## Record status
- **NPPES last updated:** August 21, 2015
- **Other identifiers:** Other 141152 (PA); Medicaid 0018105330002 (PA); Other 1279096007 (PA); and 5 more
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Source: [NPI Profile](https://npiprofile.com/npi/1104815356) · Data from the CMS NPPES public registry.