William Patrick Brimmer
Clinical Social Worker · South San Francisco, CA
William Patrick Brimmer is a clinical social worker with a practice address in South San Francisco, California, and NPI 1225212269, issued on Dec 27, 2007. Check the license (California 28633, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Patrick Brimmer
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License numbers
- 28633 CA
18855 CA
Self-reported in NPPES; status is on the state search - Practice location
- 170 S Spruce Ave, South San Francisco, CA 94080
- Phone
- (415) 265-7384
- Enumerated
- Dec 27, 2007
- Record last updated
- Apr 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 170 S Spruce Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Louise BracyCommunity Health Worker1699389254
- Lindsey CordovaMarriage & Family Therapist1306158472
- Irene Gonzalez, ACSWSocial Worker1780448241
- Michelle LewMarriage & Family Therapist1205459278
- Melissa LoiCommunity Health Worker1851859805
- Jamila McCallumCounselor1528665270
Verify William Patrick Brimmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 28633Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Patrick Brimmer among 36,261 clinical social worker records in California
William Patrick Brimmer 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 not. Its NPI, issued in 2007, is newer than 9% of them.
- NPI issued2007 · 9% of these records are older, 76% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 11% of these records are
- Record last updated2021 · 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).
27 clinical social worker records list a practice address in South San Francisco
They are 27 of the 1,173 NPPES records with a practice address in South San Francisco, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 36,261 in California → Every provider in South San Francisco → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Megan BruceSouth San Francisco, CA 940801811398530
- Alina CazarezSouth San Francisco, CA 940801164893145
- Sara Graham, MSWSouth San Francisco, CA 940801538297247
- Marsha Guevara Aleman, LCSWSouth San Francisco, CA 940801356590434
- Eleanor Hertzler, LCSWSouth San Francisco, CA 940801417054214
- Cassandra Laterza, LCSWSouth San Francisco, CA 940801053569434
- Carrie Lee, LCSWSouth San Francisco, CA 940801447309513
- William Matherly, LCSWSouth San Francisco, CA 940801063776011
Common questions
What is William Patrick Brimmer's NPI number?
William Patrick Brimmer's National Provider Identifier (NPI) is 1225212269, issued on Dec 27, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Patrick Brimmer located?
The NPPES record lists a practice address at 170 S Spruce Ave, South San Francisco, CA, 94080. Phone: (415) 265-7384. Providers update this record themselves, so call before visiting.
How can I verify William Patrick Brimmer's license?
NPPES lists California license number 28633, 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. 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.