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

John Waas

Individual provider Hematology & Oncology Physician · NPI 1093789489

John Waas is a Medical Oncology in Greensburg, Pennsylvania. Graduated from Philadelphia College of Osteopathic Medicine 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
Trained at
Philadelphia College of Osteopathic Medicine
Licensed in
PA
In the registry since
2006

Practice location Address checks out

400 Oakbrook Dr Ste 2201
Greensburg, PA 15601-6403
Phone: (724) 834-1463
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence OS009615L (PA)

Record details

NPI number1093789489
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 14, 2006
Last updated in NPPESJune 17, 2021
Mailing address400 Oakbrook Dr, Suite 2201, Greensburg, PA 15601-6403

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY, INTERNAL MEDICINE
Medical schoolPHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1996 (30 years in practice)
Group practice Hematology Oncology Association — 78 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Greensburg