William Martinez, MSW
Clinical Social Worker · North Hollywood, CA
William Martinez, MSW is a clinical social worker with a practice address in North Hollywood, California, and NPI 1801199856, issued on Dec 14, 2010. Check the license (California LCSW66399, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Martinez
- Credential
- MSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LCSW66399 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6736 Laurel Canyon Blvd Ste 200, North Hollywood, CA 91606
- Phone
- (818) 755-8784
- Enumerated
- Dec 14, 2010
- Record last updated
- Jul 18, 2018 (not updated in 8 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 6736 Laurel Canyon Blvd Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kaela AlvaradoClinical Social Worker1154968550
- Rocio AlvaradoDay Training/Habilitation Specialist1023505831
- Tania AmayaCommunity Health Worker1831864156
- Celeste Anzo, AMFTMarriage & Family Therapist1174034821
- Jhovany ArguetaCase Manager/Care Coordinator1033368170
- Anika Asmerian, M.S., PPS, IMFTMarriage & Family Therapist1740619378
Verify William Martinez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license LCSW66399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 91.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
William Martinez among 36,261 clinical social worker records in California
William Martinez, MSW 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 2010, is newer than 31% of them.
- NPI issued2010 · 31% of these records are older, 66% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileNo · 11% of these records are
- Record last updated2018 · 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).
89 clinical social worker records list a practice address in North Hollywood
They are 89 of the 1,857 NPPES records with a practice address in North Hollywood, and 36,261 clinical social worker records in California.
All 36,261 in California → Every provider in North Hollywood → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Arthur CappillaNorth Hollywood, CA 916061740335983
- Maria Cruz, LCSWNorth Hollywood, CA 916061427178003
- Dolores EstradaNorth Hollywood, CA 916061003088204
- Karen Hess, LCSWNorth Hollywood, CA 916061104951516
- Doris Kanani, LCSWNorth Hollywood, CA 916061376756429
- Shiva Khatami, ASWNorth Hollywood, CA 916061649305970
- Karen Leaf, LCSWNorth Hollywood, CA 916061720120520
- Howard Mathis, MSWNorth Hollywood, CA 916061265566343
Common questions
What is William Martinez, MSW's NPI number?
William Martinez, MSW's National Provider Identifier (NPI) is 1801199856, issued on Dec 14, 2010. An NPI identifies a provider in billing; it is not a license.
Where is William Martinez, MSW located?
The NPPES record lists a practice address at 6736 Laurel Canyon Blvd Ste 200, North Hollywood, CA, 91606. Phone: (818) 755-8784. Providers update this record themselves, so call before visiting.
How can I verify William Martinez, MSW's license?
NPPES lists California license number LCSW66399, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
What is William Martinez, MSW's MIPS final score?
The 2023 MIPS final score is 91.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.