Michael Willen, MD - Medicare Hematology/oncology in Clifton Park, NY

Michael Willen, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Clifton Park, New York. He went to New York Medical College and graduated in 1976 and has 48 years of diverse experience with area of expertise as Hematology/oncology. He is a member of the group practice New York Oncology Hematology Pc and his current practice location is 3 Crossing Blvd, Suite 1, Clifton Park, New York. You can reach out to his office (for appointments etc.) via phone at (518) 831-4434.

Michael Willen is licensed to practice in New York (license number 131246) 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 1912994849.

Contact Information

Michael Willen, MD
3 Crossing Blvd, Suite 1,
Clifton Park, NY 12065-4154
(518) 831-4434
(518) 831-4435

Map and Direction




Physician's Profile

Full NameMichael Willen
GenderMale
SpecialityHematology/oncology
Experience48 Years
Location3 Crossing Blvd, Clifton Park, New York
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:
  • Michael Willen attended and graduated from New York Medical College in 1976
  NPI Data:
  • NPI Number: 1912994849
  • Provider Enumeration Date: 10/05/2005
  • Last Update Date: 03/20/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 9931095429
  • Enrollment ID: I20040223000801

Medical Identifiers

Medical identifiers for Michael Willen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912994849NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 131246 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Samaritan HospitalTroy, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
New York Oncology Hematology Pc307240622271

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. Michael Willen allows following entities to bill medicare on his behalf.
Entity NameNew York Oncology Hematology Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609863448
PECOS PAC ID: 3072406222
Enrollment ID: O20040203000652

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. Michael Willen 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
Michael Willen, MD
3 Crossing Blvd, Suite 1,
Clifton Park, NY 12065-4154

Ph: (518) 831-4434
Michael Willen, MD
3 Crossing Blvd, Suite 1,
Clifton Park, NY 12065-4154

Ph: (518) 831-4434

Reviews and Comments


Internal Medicine Doctors in Clifton Park, NY

Dr. Michael A Salzman, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 945 Route 146, Suite #100, Clifton Park, NY 12065
Phone: 518-383-0022    Fax: 518-383-0077
Howard Schlossberg, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 3 Crossing Blvd Ste 1, Clifton Park, NY 12065
Phone: 518-831-4434    Fax: 518-831-4435
Dr. Nazir Memon, MS,MD,FACP
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: Va Primary Care, 1673 Rt 9, Clifton Park, NY 12065
Phone: 518-383-8601    Fax: 518-383-8511
Charles Weissman, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 3 Crossing Blvd, Suite 1, Clifton Park, NY 12065
Phone: 518-831-4434    Fax: 518-831-4435
Dr. John Michael Purcell Jr., M.D.
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 1520 Route 9, Clifton Park, NY 12065
Phone: 518-482-1090    
Sunitha Sukumaran, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 3 Crossing Blvd Ste 1, Clifton Park, NY 12065
Phone: 518-831-4434    Fax: 518-831-4435

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.