WILLIAM MERRIT FOX LCSW
NPI 1083893143
Social Worker - Clinical in Walnut Creek, CA

Q: What is William Fox's NPI number?

The NPI number for William Fox is 1083893143. It was assigned to this individual provider in the NPPES registry on October 25, 2007.

Q: What is William Fox's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Q: When was this NPI record last updated?

The NPPES record for William Fox was last updated on May 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since October 25, 2007PECOS EnrolledAccepts Medicare Assignment

2970 CAMINO DIABLO STE 300, WALNUT CREEK, CA 94597(925) 282-1778(415) 296-5299 Get Directions Write a Review

NPPES record last updated: May 6, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About William Merrit Fox Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM MERRIT FOX LCSW (NPI 1083893143) is an individual clinical provider in Walnut Creek, California, licensed in California (LCSW13038) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Pleasant Hill, and is a graduate of Other (1985).

NPPES Registry Identity

NPI1083893143

Entity TypeIndividualMale

Primary Taxonomy1041C0700X

Provider Legal NameWILLIAM MERRIT FOXCredential: LCSW

Location Address2970 CAMINO DIABLO STE 300Walnut Creek, CA 94597-4001

Mailing Address2970 Camino Diablo Ste 300Walnut Creek, CA 94597-4001 · (925) 282-1778 · Fax (415) 296-5299

Phone(925) 282-1778

Fax(415) 296-5299

Sole ProprietorYes

Medical School CMSOtherGraduated 1985

Enumeration DateOctober 25, 2007

Last NPPES UpdateMay 6, 2024

NPPES CertifiedMay 6, 2024

✔ NPI 1083893143 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code1041C0700X

License✔ Licensed in CA · LCSW13038

Definition

A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

2970 CAMINO DIABLO STE 300, Walnut Creek, CA 94597

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Secondary Practice Location 1

Location 1140 Mayhew Way Ste 602Pleasant Hill, CA 94523-4337 · Phone (925) 947-5600

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Merrit Fox Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3678913183

PECOS Enrollment IDI20240501002196

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94597 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$0.00 typical visit price

range $69.00 – $202.35

Typical copayment $0.00 (range $17.25 – $50.58)

Most-billed visit code NA

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARIA EMMA ROSA CASTRO LACOUTURE M.D.

Psychiatry & Neurology (Psychiatry)