Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Mark Bennett Feinberg, MD, PHD

Individual provider Internal Medicine Physician · NPI 1851019236

Dr. Mark Bennett Feinberg, MD, PHD is an Internal Medicine Physician in Philadelphia, Pennsylvania. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2022
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1020 W Upsal St
Philadelphia, PA 19119-3715
Phone: (215) 435-6981
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G73726 (CA)

Record details

NPI number1851019236
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedAugust 22, 2022
Last updated in NPPESAugust 22, 2022
Certification dateAugust 21, 2022

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