John Waas
Hematology & Oncology Physician · Greensburg, PA
John Waas is a hematology & oncology physician with a practice address in Greensburg, Pennsylvania, and NPI 1093789489, issued on Feb 14, 2006. Check the license (Pennsylvania OS009615L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- John Waas
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- OS009615L PA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Oakbrook Dr, Greensburg, PA 15601
- Phone
- (724) 834-1463
- Enumerated
- Feb 14, 2006
- Record last updated
- Jun 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040923000615); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1996
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 784 in Pennsylvania → Look up another NPI →
Also registered at 400 Oakbrook Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jaclyn Joseph, MSWSocial Worker1679855225
- Kathryne Kendrick, PA-CPhysician Assistant1740617927
- Felixberto Lim, M.D.Hematology & Oncology Physician1780655480
- John MorcosHematology & Oncology Physician1013052216
- Noelle Wian, MS LBS BCBABehavior Analyst1144609892
- Lori Young, PSY.D.Psychologist1225027048
Verify John Waas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS009615LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
93 Medicare Part D claims for 41 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Xtandi15 claims
- Anastrozole11 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $144.47
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 8,560 providers of this specialty with any payment received $7,481.41 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.
Bills Medicare through one group practice
- Hematology Oncology AssociationGreensburg, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Waas among 784 hematology & oncology physician records in Pennsylvania
John Waas is one of 784 hematology & oncology physician records with a practice address in Pennsylvania. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1996 · median 2004 among the 553 with a school on file
- Record last updated2021 · 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 207RH0003X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Pennsylvania
There are 784 hematology & oncology physician records in Pennsylvania.
All 784 in Pennsylvania → Every provider in Greensburg → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Katerina Ancevski HunterGreensburg, PA 156011598023558
- Victor Bilan, M.D.Greensburg, PA 156011366823593
- Paul Ehrlichman, DOGreensburg, PA 156011518498377
- Terry Evans, M.D.Greensburg, PA 156011568433662
- Joseph Gall, M.D.Greensburg, PA 156011508938192
- Gauri Kiefer, M.D.Greensburg, PA 156011780655829
- Felixberto Lim, M.D.Greensburg, PA 156011780655480
- John MorcosGreensburg, PA 156011013052216
Common questions
What is John Waas's NPI number?
John Waas's National Provider Identifier (NPI) is 1093789489, issued on Feb 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Waas located?
The NPPES record lists a practice address at 400 Oakbrook Dr, Greensburg, PA, 15601. Phone: (724) 834-1463. Providers update this record themselves, so call before visiting.
How can I verify John Waas's license?
NPPES lists Pennsylvania license number OS009615L, 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 John Waas prescribe under Medicare Part D?
In 2024, John Waas had 93 Medicare Part D claims for 41 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is John Waas's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.