Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Gretchen Ann Diemer, MD

Individual provider Internal Medicine Physician · NPI 1164457289

Dr. Gretchen Ann Diemer, MD is an Internal Medicine in Philadelphia, Pennsylvania. Graduated from University of Virginia School of Medicine in 2001, 25 years ago. Practices with Temple Faculty Practice Plan Inc, a 1,314-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
25
Trained at
University of Virginia School of Medicine
Licensed in
PA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3401 N Broad St
Philadelphia, PA 19140-5103
Phone: (215) 707-3807
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 833 Chestnut St, Philadelphia, PA 19107-4409 — (215) 955-6180

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD424123 (PA)

Record details

NPI number1164457289
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 11, 2006
Last updated in NPPESMarch 13, 2025
Certification dateMarch 13, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice Temple Faculty Practice Plan Inc — 1314 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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