Dr Gregory Vernon Williams, MD - Medicare Family Medicine in Fresno, CA

Dr Gregory Vernon Williams, MD is a medicare enrolled "Family Medicine" physician in Fresno, California. His current practice location is 3875 W Beechwood Ave, Fresno, California. You can reach out to his office (for appointments etc.) via phone at (559) 646-7008.

Dr Gregory Vernon Williams is licensed to practice in California (license number A118641) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1972819282.

Contact Information

Dr Gregory Vernon Williams, MD
3875 W Beechwood Ave,
Fresno, CA 93711-0795
(559) 646-7008
Not Available

Map and Direction




Physician's Profile

Full NameDr Gregory Vernon Williams
GenderMale
SpecialityFamily Medicine
Location3875 W Beechwood Ave, Fresno, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1972819282
  • Provider Enumeration Date: 08/24/2010
  • Last Update Date: 06/01/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1254570062
  • Enrollment ID: I20130626000480

Medical Identifiers

Medical identifiers for Dr Gregory Vernon Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972819282NPI-NPPES
P01507074OtherCARAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine A118641 (California)Primary
208M00000XHospitalist A118641 (California)Secondary

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. Dr Gregory Vernon Williams allows following entities to bill medicare on his behalf.
Entity NameJohn Muir Physician Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841407665
PECOS PAC ID: 6608789813
Enrollment ID: O20031226000143
Entity NameEmergency Physicians Urgent Care Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689963845
PECOS PAC ID: 8527234418
Enrollment ID: O20111227000049
Entity NameSaint Agnes Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558819482
PECOS PAC ID: 7618946369
Enrollment ID: O20170125002669

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. Dr Gregory Vernon Williams 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
Dr Gregory Vernon Williams, MD
3875 W Beechwood Ave,
Fresno, CA 93711-0795

Ph: (559) 646-7008
Dr Gregory Vernon Williams, MD
3875 W Beechwood Ave,
Fresno, CA 93711-0795

Ph: (559) 646-7008

Reviews and Comments


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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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