NPPES file of Aug 9, 2026

Gillian Marcus, LMFT

Marriage & Family Therapist · Los Angeles, CA

Gillian Marcus, LMFT is a marriage & family therapist with a practice address in Los Angeles, California, and NPI 1528287208, issued on Apr 24, 2007. Check the license (California 42651, 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
1528287208
Name
Gillian Marcus
Credential
LMFT
Primary taxonomy
Marriage & Family Therapist 106H00000X
License number
42651 CA
Self-reported in NPPES; status is on the state search
Practice location
822 S Robertson Blvd Ste 303, Los Angeles, CA 90035
Phone
(323) 487-0408
Enumerated
Apr 24, 2007
Record last updated
May 18, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(610) 514-5982
Medicare enrollment
Enrolled (PECOS I20241107001339); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest marriage & family therapist records → All 59,889 in California → Look up another NPI →

Also registered at 822 S Robertson Blvd Ste 303

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

  1. Aaron Alan, MA, LMFTMental Health Counselor1164089041
  2. Arthur Bowler, PSY.D.Clinical Psychologist1295841500
  3. Robert Flatt, LMFTMental Health Counselor1548810666
  4. Michelle Katz, MS, RDRegistered Dietitian1407304421
  5. Robert Linton, LMFTMarriage & Family Therapist1821500406
  6. Justin NatoliMarriage & Family Therapist1699254466

Verify Gillian 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 42651    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

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Gillian Marcus among 59,889 marriage & family therapist records in California

Gillian Marcus, LMFT is one of 59,889 marriage & family therapist records with a practice address in California. 4% 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 7% of them.

  • NPI issued2007 · 7% of these records are older, 77% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileYes · 8% of these records are
  • Graduated1999 · median 2013 among the 4,574 with a school on file
  • Record last updated2018 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 106H00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4,428 marriage & family therapist records list a practice address in Los Angeles

They are 4,428 of the 69,537 NPPES records with a practice address in Los Angeles, and 59,889 marriage & family therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 59,889 in California → Every provider in Los Angeles → Marriage & Family Therapist nationwide →

The 8 marriage & family therapist records with the nearest ZIP codes

  1. Cheryl Baldinger, B.A., M.A.Los Angeles, CA 900351730203837
  2. Jennifer Bergman, M.A.Los Angeles, CA 900351871620971
  3. Jill Blacher, PH.D., MFTLos Angeles, CA 900351538205265
  4. Thasja Hoffmann, M.S., MFTLos Angeles, CA 900351285838821
  5. Eric Howell, M.S.Los Angeles, CA 900351417084369
  6. Bethie Kohanbash, LMFTLos Angeles, CA 900351609908730
  7. Leila KuenzleLos Angeles, CA 900351699820522
  8. Loretta Lopez HerndonLos Angeles, CA 900351386776201

Common questions

What is Gillian Marcus, LMFT's NPI number?

Gillian Marcus, LMFT's National Provider Identifier (NPI) is 1528287208, issued on Apr 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gillian Marcus, LMFT located?

The NPPES record lists a practice address at 822 S Robertson Blvd Ste 303, Los Angeles, CA, 90035. Phone: (323) 487-0408. Providers update this record themselves, so call before visiting.

How can I verify Gillian Marcus, LMFT's license?

NPPES lists California license number 42651, 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.