Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Kenneth L. Zeitzer, MD

Individual provider Radiation Oncology Physician · NPI 1801980230

Kenneth L. Zeitzer, MD practises Radiation Oncology in Philadelphia, Pennsylvania. Qualified in 1988, 38 years ago. Practices with Einstein Practice Plan Inc, a 764-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
38
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

5501 Old York Road Levy Grd Fl
Philadelphia, PA 19141 Not confirmed with CMS for 13 years — call before visiting
Phone: (215) 456-6280
Fax: (215) 457-0270
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence MD048234L (PA)

Record details

NPI number1801980230
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 2, 2006
Last updated in NPPESApril 24, 2013

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Group practice Einstein Practice Plan Inc — 764 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 patients152
Services billed 1,577 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

  • Jefferson Einstein Montgomery Hospital Hospital · East Norriton, PA
  • Jefferson Einstein Philadelphia Hospital Hospital · Philadelphia, PA
  • Jefferson Lansdale Hospital Hospital · Lansdale, PA

Colleagues at Einstein Practice Plan Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 764 clinicians in the practice; 12 are shown here.

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