Steven Feinstein, MD
Internal Medicine Physician · Radnor, PA
Steven Feinstein, MD is an internal medicine physician with a practice address in Radnor, Pennsylvania, and NPI 1104815356, issued on Oct 20, 2005. Check the license (Pennsylvania MD032211E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Steven Feinstein
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD032211E PA
Self-reported in NPPES; status is on the state search - Practice location
- 250 King OF Prussia Road, Radnor, PA 19087
- Phone
- (610) 902-5600
- Enumerated
- Oct 20, 2005
- Entity
- Type 1 · individual
Also registered at 250 King OF Prussia Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Steven Feinstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD032211ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.7 times the Medicare Part D claims of the average internal medicine physician in 2024
10,419 Medicare Part D claims for 764 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 320 claims were for opioids.
Most prescribed
- Amlodipine Besylate506 claims
- Atorvastatin Calcium485 claims
- Rosuvastatin Calcium440 claims
- Losartan Potassium357 claims
- Omeprazole300 claims
- Hydrochlorothiazide296 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
One hospital or facility affiliation
- Trustees OF The University OF PennsylvaniaRadnor, PA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
16 internal medicine physician records list a Radnor practice address
They are 16 of the 240 NPPES records with a Radnor practice address, and 8,636 internal medicine physician records in Pennsylvania.
All 16 in Radnor → All 8,636 in Pennsylvania → Every provider in Radnor →
Other internal medicine physician records in Pennsylvania
- Erin Aakhus, M.D.Philadelphia, PA1255652087
- Muhammad Aamir, MDAllentown, PA1477039147
- Saira Aamir, MDYork, PA1184515686
- John Aaron, MDWest Grove, PA1427094531
- Todd Aaron, MDPhiladelphia, PA1457350522
- Cybele Abad, M.D.Pittsburgh, PA1619900453
- Mario Abad, MDDuncannon, PA1710022975
- Joseph Abalos, M.D.Seneca, PA1215128434
- Ali Abbas, MDYork, PA1023343779
- Huda Abbas, MDDoylestown, PA1316187024
Common questions
What is Steven Feinstein, MD's NPI number?
Steven Feinstein, MD's National Provider Identifier (NPI) is 1104815356, issued on Oct 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Steven Feinstein, MD located?
The NPPES record lists a practice address at 250 King OF Prussia Road, Radnor, PA, 19087. Phone: (610) 902-5600. Providers update this record themselves, so call before visiting.
How can I verify Steven Feinstein, MD's license?
NPPES lists Pennsylvania license number MD032211E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Steven Feinstein, MD prescribe under Medicare Part D?
In 2024, Steven Feinstein, MD had 10,419 Medicare Part D claims for 764 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.