JOHN WAAS – Hematology & Oncology Physician, NPI 1093789489
Hematology & Oncology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
426 MEDICAL ONCOLOGY in PA
Provider Addresses for JOHN WAAS
400 OAKBROOK DR
SUITE 2201
GREENSBURG, PA 156016403
Phone:
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 6 Open Payments records for all available years, with a total value of $326.
Total Amount is formed as General ($326) + Research ($0) + Ownership ($0) = $326.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Lilly USA, LLC ($125).
Total Amount
$326
General + Research + Ownership
Payments
6
Total payment records
General Amount
$326
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Lilly USA, LLC | $125 |
| Merck Sharp & Dohme LLC | $118 |
| Mirati Therapeutics, Inc. | $42 |
| Janssen Biotech, Inc. | $26 |
| Exelixis Inc. | $15 |
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: 2004-09-23
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 |
|---|---|---|---|---|
| I20040923000615 | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J1626 | Injection, granisetron hydrochloride, 100 mcg | 740 | 17 | $0 |
| J1100 | Injection, dexamethasone sodium phosphate, 1 mg | 598 | 18 | $0 |
| 85025 | Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 510 | 108 | $0 |
| 96367 | Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less | 226 | 25 | $0 |
| 96413 | Administration of chemotherapy into vein, 1 hour or less | 188 | 28 | $0 |
Insurance plans in this area (ZIP 15601)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| MEDICAL ONCOLOGY | PA | 96375 | Injection of different drug or substance into a vein for therapy, diagnosis, or prevention | 36 | 11 |
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 | |
| - | PA |
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