NPPES file of Aug 9, 2026

Mark A. Hirshfeld, LCSW

Clinical Social Worker · Ventura, CA

Mark A. Hirshfeld, LCSW is a clinical social worker with a practice address in Ventura, California, and NPI 1225120223, issued on Sep 28, 2006. Check the license (California LCS14788, 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
1225120223
Name
Mark A. Hirshfeld
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LCS14788 CA
Self-reported in NPPES; status is on the state search
Practice location
3585 Maple St, Ventura, CA 93003
Phone
(805) 658-9900
Enumerated
Sep 28, 2006
Record last updated
Jun 30, 2023
Fax
(805) 658-9900
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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8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →

Also registered at 3585 Maple St

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

  1. Jeffrey Campbell, M.A., L.M.F.TMarriage & Family Therapist1669691341
  2. Christina Griffin, PH.D.Clinical Psychologist1326269317
  3. Laura Hughes, MFTMarriage & Family Therapist1043416738
  4. Heidi Kwan, PH.D.Clinical Child & Adolescent Psychologist1649382680
  5. Irene Mason, P.A.-CPsychiatric/Mental Health Nurse Practitioner1083621593
  6. Laura Shore, MSW LCSWClinical Social Worker1831221027

Verify Mark A. Hirshfeld 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 LCS14788    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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Mark A. Hirshfeld among 36,261 clinical social worker records in California

Mark A. Hirshfeld, 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 not. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 91% newer
  • In a Medicare fileNo · 6% of these records are
  • In the CMS Doctors and Clinicians fileNo · 11% of these records are
  • Record last updated2023 · 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).

173 clinical social worker records list a practice address in Ventura

They are 173 of the 4,435 NPPES records with a practice address in Ventura, 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 Ventura → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Maryellen Benedetto, LCSWVentura, CA 930031043321391
  2. Larry Berent, MSW, LCSWVentura, CA 930031528117074
  3. Stephen Coffman, LCSWVentura, CA 930031548276546
  4. Alan Doyle, LCSWVentura, CA 930031336173996
  5. Lucy Ford, LCSWVentura, CA 930031760516140
  6. Gary Hansen, LCSWVentura, CA 930031508867649
  7. Shirley Hansen, LCSWVentura, CA 930031356496657
  8. Jay Hong, LCSW-RVentura, CA 930031316042039

Common questions

What is Mark A. Hirshfeld, LCSW's NPI number?

Mark A. Hirshfeld, LCSW's National Provider Identifier (NPI) is 1225120223, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Hirshfeld, LCSW located?

The NPPES record lists a practice address at 3585 Maple St, Ventura, CA, 93003. Phone: (805) 658-9900. Providers update this record themselves, so call before visiting.

How can I verify Mark A. Hirshfeld, LCSW's license?

NPPES lists California license number LCS14788, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.