William Merrit Fox, LCSW
Clinical Social Worker · Walnut Creek, CA
William Merrit Fox, LCSW is a clinical social worker with a practice address in Walnut Creek, California, and NPI 1083893143, issued on Oct 25, 2007. Check the license (California LCSW13038, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Merrit Fox
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LCSW13038 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2970 Camino Diablo Ste 300, Walnut Creek, CA 94597
- Phone
- (925) 282-1778
- Enumerated
- Oct 25, 2007
- Record last updated
- May 6, 2024
- Fax
- (415) 296-5299
- Medicare enrollment
- Enrolled (PECOS I20240501002196); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 2970 Camino Diablo Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cindy Bolter, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1245459544
- Andrea Brackett, PMHNPPsychiatric/Mental Health Nurse Practitioner1457802068
- Maria Emma Castro Lacouture, M.D.Psychiatry Physician1043469687
- Keren Dietz Roberts, PMHNPPsychiatric/Mental Health Nurse Practitioner1487319786
- Deborah Sue Duell-Stephens, LMFTMarriage & Family Therapist1609166750
Verify William Merrit Fox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license LCSW13038Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Pacific Coast Psychiatric Associates IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Merrit Fox among 36,261 clinical social worker records in California
William Merrit Fox, LCSW is one of 36,261 clinical social worker records with a practice address in California. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 9% of them.
- NPI issued2007 · 9% of these records are older, 76% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1985 · median 2012 among the 4,008 with a school on file
- Record last updated2024 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
124 clinical social worker records list a practice address in Walnut Creek
They are 124 of the 6,170 NPPES records with a practice address in Walnut Creek, and 36,261 clinical social worker records in California.
All 36,261 in California → Every provider in Walnut Creek → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Jessica Bailey-Pierre, LCSWWalnut Creek, CA 945971124509856
- Sarah Burkhead, LCSWWalnut Creek, CA 945971790364842
- Joseph Dintino, LCSWWalnut Creek, CA 945971306140744
- Rachel Fan, LCSWWalnut Creek, CA 945971174005318
- Jasmine Hajyan, LCSWWalnut Creek, CA 945971720242613
- Michele HoltWalnut Creek, CA 945971144732892
- Sorrel Isherwood, LCSW, MPHWalnut Creek, CA 945971730365263
- Julie LenhardtWalnut Creek, CA 945971932701158
Common questions
What is William Merrit Fox, LCSW's NPI number?
William Merrit Fox, LCSW's National Provider Identifier (NPI) is 1083893143, issued on Oct 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Merrit Fox, LCSW located?
The NPPES record lists a practice address at 2970 Camino Diablo Ste 300, Walnut Creek, CA, 94597. Phone: (925) 282-1778. Providers update this record themselves, so call before visiting.
How can I verify William Merrit Fox, LCSW's license?
NPPES lists California license number LCSW13038, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.