Kenneth Zeitzer, M.D.
Radiation Oncology Physician · Philadelphia, PA
Kenneth Zeitzer, M.D. is a radiation oncology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1801980230, issued on Oct 2, 2006. Check the license on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Kenneth Zeitzer
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- Practice location
- 5501 Old York Road, Philadelphia, PA 19141
- Phone
- (215) 456-6280
- Enumerated
- Oct 2, 2006
- Entity
- Type 1 · individual
Also registered at 5501 Old York Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kenneth Zeitzer 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
32% fewer Medicare Part D claims than the average radiation oncology physician in 2024
92 Medicare Part D claims for 47 beneficiaries, against an average of 135 among the 4,225 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Oxybutynin Chloride25 claims
- Tamsulosin Hcl18 claims
- Mometasone Furoate13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $196.12
2 payments, mostly food and beverage; the largest payer was Teleflex LLC. The 2,851 providers of this specialty with any payment received $1,903.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Einstein Practice Plan IncPhila, PA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Radiation Oncology Physician providers in Pennsylvania
There are 327 radiation oncology physician records in Pennsylvania.
Other radiation oncology physician records in Pennsylvania
- Stephen Abel, DOClarion, PA1033642319
- Manuj Agarwal, MDPhiladelphia, PA1316262363
- Peter Ahn, M.D.Philadelphia, PA1710117106
- Ayesha Ali, MDLancaster, PA1538663851
- Fiori AliteLewisburg, PA1811289127
- Michelle Alonso-Basanta, MDPhiladelphia, PA1831393800
- Antonio Ambrad, M.D.Pittsburgh, PA1205837143
- David Andolino, MDEaston, PA1477715407
- Charles Andrews, MDAllentown, PA1427031657
- Pramila Anne, M.D.Philadelphia, PA1982626321
Common questions
What is Kenneth Zeitzer, M.D.'s NPI number?
Kenneth Zeitzer, M.D.'s National Provider Identifier (NPI) is 1801980230, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth Zeitzer, M.D. located?
The NPPES record lists a practice address at 5501 Old York Road, Philadelphia, PA, 19141. Phone: (215) 456-6280. Providers update this record themselves, so call before visiting.
How can I verify Kenneth Zeitzer, M.D.'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.
How much does Kenneth Zeitzer, M.D. prescribe under Medicare Part D?
In 2024, Kenneth Zeitzer, M.D. had 92 Medicare Part D claims for 47 beneficiaries; the average among radiation oncology physician prescribers was 135. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.