Zachary Alexander Kiss, DO
Radiation Oncology Physician · West Chester, PA
Zachary Alexander Kiss, DO is a radiation oncology physician with a practice address in West Chester, Pennsylvania, and NPI 1902485311, issued on Apr 4, 2021. Check the license (Pennsylvania OS025803, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Zachary Alexander Kiss
- Credential
- DO
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- OS025803 PA
Self-reported in NPPES; status is on the state search - Practice location
- 701 East Marshall Street, West Chester, PA 19380
- Phone
- (610) 431-5530
- Enumerated
- Apr 4, 2021
- Record last updated
- Aug 6, 2026
- Fax
- (610) 431-5144
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 383 in Pennsylvania → Look up another NPI →
Also registered at 701 East Marshall Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Barry, MDDiagnostic Radiology Physician1104862846
- Ann Borofski Siegal, MDRadiation Oncology Physician1063410959
- Min Cheung, MDRadiation Oncology Physician1811096597
- Casey Hollawell, MDRadiation Oncology Physician1689258626
- Ahmed Shalaby, MDDiagnostic Radiology Physician1952982829
Verify Zachary Alexander Kiss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS025803Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average radiation oncology physician in 2024
49 Medicare Part D claims for 23 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl22 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.
Zachary Alexander Kiss among 383 radiation oncology physician records in Pennsylvania
Zachary Alexander Kiss, DO is one of 383 radiation oncology physician records with a practice address in Pennsylvania. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 96% of them.
- NPI issued2021 · 96% of these records are older, 3% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 75% of these records are
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Pennsylvania
There are 383 radiation oncology physician records in Pennsylvania.
All 383 in Pennsylvania → Every provider in West Chester → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Ann Borofski Siegal, MDWest Chester, PA 193801063410959
- Min Cheung, MDWest Chester, PA 193801811096597
- Casey Hollawell, MDWest Chester, PA 193801689258626
- Leslie Tupchong, MDNorristown, PA 194011578531653
- Donald Red, MDMalvern, PA 193551053684449
- Stephen Arrigo, M.D.King Of Prussia, PA 194061467496877
- Estella Graeffe, MDKing Of Prussia, PA 194061750332300
- Michael McKennaKing Of Prussia, PA 194061073556528
Common questions
What is Zachary Alexander Kiss, DO's NPI number?
Zachary Alexander Kiss, DO's National Provider Identifier (NPI) is 1902485311, issued on Apr 4, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Alexander Kiss, DO located?
The NPPES record lists a practice address at 701 East Marshall Street, West Chester, PA, 19380. Phone: (610) 431-5530. Providers update this record themselves, so call before visiting.
How can I verify Zachary Alexander Kiss, DO's license?
NPPES lists Pennsylvania license number OS025803, as entered by the provider. 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 Zachary Alexander Kiss, DO prescribe under Medicare Part D?
In 2024, Zachary Alexander Kiss, DO had 49 Medicare Part D claims for 23 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.