ANDREW J. ZAHALSKY (M.D.) – Medical Oncology Physician, NPI 1952363525
Medical Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
426 MEDICAL ONCOLOGY in PA
Provider Addresses for ANDREW J. ZAHALSKY (M.D.)
200 VILLAGE DR
GREENSBURG, PA 156013783
Phone: (724) 838-1900
Fax: (724) 838-5620
Type: Location
1640 WATTERSON CT
PITTSBURGH, PA 152413149
Phone: (724) 413-9813
Fax: (724) 348-8624
Type: Mailing
1163, Country Club Road, Carroll Township, Washington County, Pennsylvania, 15063, United States
2ND FLOOR
MONONGAHELA, PA 15063
Phone: (724) 292-9404
Fax: (724) 292-9128
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2013-10-25
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20131025000280 | I | Medical Oncology | PA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 15601)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| H E M A T O L O G Y | PA | |
| Medical Oncology, Hematology/Oncology, Internal Medicine | PA | |
| Medical Oncology, Hematology | PA | |
| Nurse Practitioner | PA | |
| H E M A T O L O G Y/ O N C O L O G Y | PA | |
| - | PA | |
| Physician Assistant | PA | |
| Medical Oncology, Internal Medicine | PA | |
| Physician Assistant | PA | |
| Medical Oncology, Hematology, Internal Medicine | PA |
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