William Massey, MD - Medicare Family Practice in Sterling Heights, MI

William Massey, MD is a medicare enrolled "Family Medicine" physician in Sterling Heights, Michigan. He graduated from medical school in 1989 and has 35 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Permanente Medical Group Inc and his current practice location is 43243 Schoenherr Rd, Sterling Heights, Michigan. You can reach out to his office (for appointments etc.) via phone at (586) 726-0044.

William Massey is licensed to practice in California (license number C175355) 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 1609884600.

Contact Information

William Massey, MD
43243 Schoenherr Rd,
Sterling Heights, MI 48313-1957
(586) 726-0044
(586) 726-0043

Map and Direction




Physician's Profile

Full NameWilliam Massey
GenderMale
SpecialityFamily Practice
Experience35 Years
Location43243 Schoenherr Rd, Sterling Heights, Michigan
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:
  • William Massey graduated from medical school in 1989
  NPI Data:
  • NPI Number: 1609884600
  • Provider Enumeration Date: 08/04/2006
  • Last Update Date: 05/31/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 8224939913
  • Enrollment ID: I20220519000851

Medical Identifiers

Medical identifiers for William Massey such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1609884600NPI-NPPES
4350007MedicaidMI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine C175355 (California)Primary
207R00000XInternal Medicine WM063765 (Michigan)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kaiser Foundation Hosp So SacramentoSacramento, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102258376

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. William Massey allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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. William Massey 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
William Massey, MD
1800 Harrison St, 7th Fl,
Oakland, CA 94612-3429

Ph: (510) 625-2856
William Massey, MD
43243 Schoenherr Rd,
Sterling Heights, MI 48313-1957

Ph: (586) 726-0044

Reviews and Comments


Family Medicine Doctors in Sterling Heights, MI

Dr. Gorica Milojevic, M.D.
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Medicare: Medicare Enrolled
Practice Location: 44250 Dequindre Rd, Sterling Heights, MI 48314
Phone: 248-964-0430    
Dr. Theodoros Pantazis, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 44250 Dequindre Rd, Sterling Heights, MI 48314
Phone: 248-964-0400    Fax: 248-964-0401
Laura Margaret O'brien, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 44250 Dequindre Rd, Sterling Heights, MI 48314
Phone: 248-964-0400    
Dr. Joyce A Mcdonald, DO
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 13700 19 Mile Rd, Sterling Heights, MI 48313
Phone: 586-247-6020    Fax: 586-247-7048
Dr. Fredric I Neumann I, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 39880 Van Dyke, Suite 102, Sterling Heights, MI 48313
Phone: 586-939-9060    Fax: 586-939-6639
Dr. Fabian L Fregoli, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 43455 Schoenherr Rd, Suite 2, Sterling Heights, MI 48313
Phone: 586-726-4823    Fax: 586-726-8365
Parag Patel,
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 43455 Schoenherr Rd, Ste. 2, Sterling Heights, MI 48313
Phone: 586-726-4823    

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.