Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Andrew J. Zahalsky, MD

Individual provider Medical Oncology Physician · NPI 1952363525

Andrew J. Zahalsky, MD practises Medical Oncology in Greensburg, Pennsylvania. Qualified in 1996, 30 years ago. Practices with Hematology Oncology Association, a 78-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
30
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

200 Village Dr
Greensburg, PA 15601-3783
Phone: (724) 838-1900
Fax: (724) 838-5620
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence MD418239 (PA)

Record details

NPI number1952363525
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 6, 2006
Last updated in NPPESDecember 10, 2024
Certification dateDecember 10, 2024

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Hematology Oncology Association — 78 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 patients15
Services billed 32 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.

Colleagues at Hematology Oncology Association

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 78 clinicians in the practice; 12 are shown here.

Other providers in Greensburg