Mark Bennett Feinberg, MD, PHD
Internal Medicine Physician · Philadelphia, PA
Mark Bennett Feinberg, MD, PHD is an internal medicine physician with a practice address in Philadelphia, Pennsylvania, and NPI 1851019236, issued on Aug 22, 2022. Check the license on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Bennett Feinberg
- Credential
- MD, PHD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G73726 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1020 W Upsal St, Philadelphia, PA 19119
- Phone
- (215) 435-6981
- Enumerated
- Aug 22, 2022
- Record last updated
- Aug 22, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Verify Mark Bennett Feinberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)Check the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Bennett Feinberg among 7,300 internal medicine physician records in Pennsylvania
Mark Bennett Feinberg, MD, PHD is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2022, is newer than 85% of them.
- NPI issued2022 · 85% of these records are older, 11% newer
- In a Medicare fileNo · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2022 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,855 internal medicine physician records list a practice address in Philadelphia
They are 1,855 of the 42,849 NPPES records with a practice address in Philadelphia, and 7,300 internal medicine physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,300 in Pennsylvania → Every provider in Philadelphia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Elizabeth Fabens, MDPhiladelphia, PA 191191053380923
- Mohanad Fallouh, M.D.Philadelphia, PA 191191619915527
- Ellen Feld, M.D.Philadelphia, PA 191191912115981
- Shyrelle Gardner, M.D.Philadelphia, PA 191191710948609
- William Laury, M.D.Philadelphia, PA 191191407802697
- Walter Tsou, MD, MPHPhiladelphia, PA 191191538486733
- Todd Aaron, MDPhiladelphia, PA 191181457350522
- Mushtaq Ahmad, MDPhiladelphia, PA 191201932148723
Common questions
What is Mark Bennett Feinberg, MD, PHD's NPI number?
Mark Bennett Feinberg, MD, PHD's National Provider Identifier (NPI) is 1851019236, issued on Aug 22, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Mark Bennett Feinberg, MD, PHD located?
The NPPES record lists a practice address at 1020 W Upsal St, Philadelphia, PA, 19119. Phone: (215) 435-6981. Providers update this record themselves, so call before visiting.
How can I verify Mark Bennett Feinberg, MD, PHD's license?
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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.