Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Peter S Klein, MDPHD

Individual provider Hematology (Internal Medicine) Physician · NPI 1467495788

Peter S Klein, MDPHD practises Internal Medicine in Philadelphia, Pennsylvania. Graduated from Johns Hopkins University School of Medicine in 1988, 38 years ago. Practices with University of Penn-Medical Group, a 3,401-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
38
Trained at
Johns Hopkins University School of Medicine
Licensed in
PA
In the registry since
2006
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Practice location Address checks out

3400 Spruce Street 15 Penn Tower
Philadelphia, PA 19104 Not confirmed with CMS for 15 years — call before visiting
Phone: (215) 662-3914
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology (Internal Medicine) Physician (primary) Taxonomy 207RH0000X · Licence MD055837L (PA)

Record details

NPI number1467495788
Entity typeIndividual (Type 1)
GenderMale
Credentials MDPHD
Sole proprietorNo
NPI enumeratedJune 14, 2006
Last updated in NPPESFebruary 24, 2011

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice University Of Penn-Medical Group — 3401 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients17
Services billed 26 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at University of Penn-Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3401 clinicians in the practice; 12 are shown here.

Other providers in Philadelphia