William Merrit Fox, LCSW - Medicare Clinical Social Worker in Walnut Creek, CA

William Merrit Fox, LCSW is a medicare enrolled "Social Worker - Clinical" provider in Walnut Creek, California. His current practice location is 2970 Camino Diablo Ste 300, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 282-1778.

William Merrit Fox is licensed to practice in California (license number LCSW13038) 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 1083893143.

Contact Information

William Merrit Fox, LCSW
2970 Camino Diablo Ste 300,
Walnut Creek, CA 94597-4001
(925) 282-1778
(415) 296-5299

Map and Direction




Healthcare Provider's Profile

Full NameWilliam Merrit Fox
GenderMale
SpecialitySocial Worker - Clinical
Location2970 Camino Diablo Ste 300, Walnut Creek, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1083893143
  • Provider Enumeration Date: 10/25/2007
  • Last Update Date: 05/06/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 3678913183
  • Enrollment ID: I20240501002196

Medical Identifiers

Medical identifiers for William Merrit Fox such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1083893143NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
1041C0700XSocial Worker - Clinical LCSW13038 (California)Primary

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 Merrit Fox allows following entities to bill medicare on his behalf.
Entity NamePacific Coast Psychiatric Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023125465
PECOS PAC ID: 2567469174
Enrollment ID: O20061024000383

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 Merrit Fox 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 Merrit Fox, LCSW
2970 Camino Diablo Ste 300,
Walnut Creek, CA 94597-4001

Ph: (925) 282-1778
William Merrit Fox, LCSW
2970 Camino Diablo Ste 300,
Walnut Creek, CA 94597-4001

Ph: (925) 282-1778

Reviews and Comments


Social Worker in Walnut Creek, CA

Mr. Edward Hal Pieczenik, L.C.S.W.
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-5237    
Mr. Jonathan Knight Palley, L.C.S.W.
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-5257    Fax: 925-295-7224
Mr. Allen Choi, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1844 San Miguel Dr Ste 306a, Walnut Creek, CA 94596
Phone: 510-823-9069    
Sara Patricia Sakarata, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 1308 Boulevard Way Apt D, Walnut Creek, CA 94595
Phone: 925-451-1814    
Ms. Sue Ellen Flood, LCSW
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 710 S Broadway, Walnut Creek, CA 94596
Phone: 925-295-5263    Fax: 925-295-5226
Angelia Maria Reese-galloway, MSW, ASW, PH. D.-ABD
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 3000 Citrus Cir Ste 220, Walnut Creek, CA 94598
Phone: 925-689-5811    Fax: 925-429-9254
Estela Cortez,
Clinical Social Worker
Medicare: Not Enrolled in Medicare
Practice Location: 2820 Shadelands Dr Ste 200, Walnut Creek, CA 94598
Phone: 925-315-0375    

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.