NPPES file of Aug 9, 2026

Michael Hammer, MSW

Clinical Social Worker · San Diego, CA

Michael Hammer, MSW is a clinical social worker with a practice address in San Diego, California, and NPI 1861491292, issued on Jul 18, 2005. Check the license (California LCS 24859, 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.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861491292
Name
Michael Hammer
Credential
MSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License numbers
LCS 24859 CA
068678-1 NY
LW00004243 WA
Self-reported in NPPES; status is on the state search
Practice location
1094 Cudahy PL, San Diego, CA 92110
Phone
(619) 276-8812
Enumerated
Jul 18, 2005
Record last updated
Mar 18, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(619) 276-8230
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1094 Cudahy PL

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kathryn Alban, LMFTMarriage & Family Therapist1639387574
  2. Terry Allon, LCSWClinical Social Worker1851626477
  3. Chad Arnold, MFCMarriage & Family Therapist1619119104
  4. Warren Basile, WARREN BASILEMarriage & Family Therapist1063658938
  5. Brian Cardoza, R.N.Psychiatric/Mental Health Registered Nurse1639352495
  6. Demetri Coffin, PSY.D.Clinical Psychologist1871668749

Verify Michael Hammer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license LCS 24859
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Michael Hammer among 36,261 clinical social worker records in California

Michael Hammer, 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 not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, over 99% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 11% of these records are
  • Record last updated2011 · 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).

2,036 clinical social worker records list a practice address in San Diego

They are 2,036 of the 52,937 NPPES records with a practice address in San Diego, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical social worker records with the nearest ZIP codes

  1. Richard Arellano, LCSWSan Diego, CA 921101396814505
  2. Cara Bechefsky, LCSWSan Diego, CA 921101205929346
  3. O. Cole, L.C.S.W.San Diego, CA 921101205840485
  4. Lysette Delcastillo, LCSWSan Diego, CA 921101558438697
  5. Michele Koonin, LCSWSan Diego, CA 921101982635611
  6. Robert Ledermann, PH.D.San Diego, CA 921101962418111
  7. Janel Medina, LCSWSan Diego, CA 921101699840579
  8. Alicia Outcalt, LCSWSan Diego, CA 921101417055682

Common questions

What is Michael Hammer, MSW's NPI number?

Michael Hammer, MSW's National Provider Identifier (NPI) is 1861491292, issued on Jul 18, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael Hammer, MSW located?

The NPPES record lists a practice address at 1094 Cudahy PL, San Diego, CA, 92110. Phone: (619) 276-8812. Providers update this record themselves, so call before visiting.

How can I verify Michael Hammer, MSW's license?

NPPES lists California license number LCS 24859, 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.