John Waas, - Medicare Medical Oncology in Greensburg, PA

John Waas, is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Greensburg, Pennsylvania. He went to Philadelphia College Of Osteopathic Medicine and graduated in 1996 and has 28 years of diverse experience with area of expertise as Medical Oncology. He is a member of the group practice Mountain View Cancer Associates and his current practice location is 400 Oakbrook Dr, Suite 2201, Greensburg, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (724) 834-1463.

John Waas is licensed to practice in Pennsylvania (license number OS009615L) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1093789489.

Contact Information

John Waas,
400 Oakbrook Dr, Suite 2201,
Greensburg, PA 15601-6403
(724) 834-1463
Not Available

Map and Direction




Physician's Profile

Full NameJohn Waas
GenderMale
SpecialityMedical Oncology
Experience28 Years
Location400 Oakbrook Dr, Greensburg, Pennsylvania
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • John Waas attended and graduated from Philadelphia College Of Osteopathic Medicine in 1996
  NPI Data:
  • NPI Number: 1093789489
  • Provider Enumeration Date: 02/14/2006
  • Last Update Date: 06/17/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7315915642
  • Enrollment ID: I20040923000615

Medical Identifiers

Medical identifiers for John Waas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1093789489NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology OS009615L (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Excela Health Westmoreland Regional HospitalGreensburg, PAHospital
Excela Health - Frick HospitalMount pleasant, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mountain View Cancer Associates559766679223

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. John Waas allows following entities to bill medicare on his behalf.
Entity NameMountain View Cancer Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013984376
PECOS PAC ID: 5597666792
Enrollment ID: O20040120000532
Entity NameHematology Oncology Association
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114994324
PECOS PAC ID: 2860413002
Enrollment ID: O20051215000107

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. John Waas is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John Waas,
400 Oakbrook Dr, Suite 2201,
Greensburg, PA 15601-6403

Ph: () -
John Waas,
400 Oakbrook Dr, Suite 2201,
Greensburg, PA 15601-6403

Ph: (724) 834-1463

Reviews and Comments


Internal Medicine Doctors in Greensburg, PA

Nawaf I Nseir, M.D.
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Matthew G Sulecki, M.D.
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Practice Location: 200 Village Dr, Greensburg, PA 15601
Phone: 724-838-1900    Fax: 724-838-5620

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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