NPPES file of Aug 9, 2026

Madeleine Marcus, LCSW

Clinical Social Worker · Hayward, CA

Madeleine Marcus, LCSW is a clinical social worker with a practice address in Hayward, California, and NPI 1285835942, issued on May 30, 2007. Check the license (California LCSW 4106, 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
1285835942
Name
Madeleine Marcus
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LCSW 4106 CA
Self-reported in NPPES; status is on the state search
Practice location
22455 Maple CT, Hayward, CA 94541
Phone
(510) 582-0148
Enumerated
May 30, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(510) 582-8460
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 22455 Maple CT

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

  1. Janet BeatyMental Health Counselor1609087477
  2. Jennifer FunkMarriage & Family Therapist1942459649
  3. Lois Gray, MFCMarriage & Family Therapist1720299316
  4. Kay Grosvenor, NPWomen's Health Nurse Practitioner1275682734
  5. Mary HickenMental Health Counselor1811168404
  6. Carolyn Phillips, LMFTMarriage & Family Therapist1336245562

Verify Madeleine Marcus 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 LCSW 4106
    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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Madeleine Marcus among 36,261 clinical social worker records in California

Madeleine Marcus, 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 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 updated2007 · 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).

123 clinical social worker records list a practice address in Hayward

They are 123 of the 3,993 NPPES records with a practice address in Hayward, 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. Eva Aguirre, MSW/ASWHayward, CA 945411306012216
  2. Margot Broaddus, MSWHayward, CA 945411790961068
  3. Rebecca Hathorn, LCSWHayward, CA 945411770624363
  4. Gary Hull, M.DIV., MSW, LCSWHayward, CA 945411558570796
  5. Jessica Johnson, LCSWHayward, CA 945411053433433
  6. Marlo Lewis, LCSWHayward, CA 945411174651194
  7. Jacqueline Mollitor, LCSWHayward, CA 945411457542441
  8. Elizabeth Nickens, M.S.W.Hayward, CA 945411912929811

Common questions

What is Madeleine Marcus, LCSW's NPI number?

Madeleine Marcus, LCSW's National Provider Identifier (NPI) is 1285835942, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Madeleine Marcus, LCSW located?

The NPPES record lists a practice address at 22455 Maple CT, Hayward, CA, 94541. Phone: (510) 582-0148. Providers update this record themselves, so call before visiting.

How can I verify Madeleine Marcus, LCSW's license?

NPPES lists California license number LCSW 4106, 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.