NPPES file of Aug 9, 2026

Mariana Caplan, PHD

Mental Health Counselor · Novato, CA

Mariana Caplan, PHD is a mental health counselor with a practice address in Novato, California, and NPI 1124279625, issued on Oct 2, 2008. Check the license (California 00190559, 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
1124279625
Name
Mariana Caplan
Credential
PHD
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
00190559 CA
Self-reported in NPPES; status is on the state search
Practice location
680 Wilson Ave, Novato, CA 94947
Phone
(415) 892-1643
Enumerated
Oct 2, 2008
Record last updated
Dec 4, 2008 (not updated in 18 years: call before relying on the address or phone)
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 680 Wilson Ave

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

  1. Andrea Alfaro-PalaciosStudent in an Organized Health Care Education/Training Program1487936423
  2. Andrea Alphonso-Gibbs, AMFTMarriage & Family Therapist1689302192
  3. Shayda BakhtiariMarriage & Family Therapist1972491900
  4. Jesse Butler, AMFT, APCCMarriage & Family Therapist1194674895
  5. Tatiana DiakoffStudent in an Organized Health Care Education/Training Program1124377932
  6. Marc Doshay, M.A., MFTIMental Health Counselor1013298876

Verify Mariana Caplan 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 00190559
    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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Mariana Caplan among 28,617 mental health counselor records in California

Mariana Caplan, PHD is one of 28,617 mental health counselor records with a practice address in California. 1% 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 2008, is newer than 19% of them.

  • NPI issued2008 · 19% of these records are older, 75% newer
  • In a Medicare fileNo · 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 3% of these records are
  • Record last updated2008 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

50 mental health counselor records list a practice address in Novato

They are 50 of the 934 NPPES records with a practice address in Novato, and 28,617 mental health counselor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 mental health counselor records with the nearest ZIP codes

  1. Diane Current, MFTNovato, CA 949471508912726
  2. Marc Doshay, M.A., MFTINovato, CA 949471013298876
  3. Karen Gee, M.A.Novato, CA 949471194939173
  4. Marcia Greene, MFT INTERNNovato, CA 949471528349073
  5. Christina HetzerNovato, CA 949471801229117
  6. Sarah Mangion, MANovato, CA 949471194867739
  7. Elizabeth McCann, APCCNovato, CA 949471083810139
  8. Susan McElligottNovato, CA 949471518275171

Common questions

What is Mariana Caplan, PHD's NPI number?

Mariana Caplan, PHD's National Provider Identifier (NPI) is 1124279625, issued on Oct 2, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Mariana Caplan, PHD located?

The NPPES record lists a practice address at 680 Wilson Ave, Novato, CA, 94947. Phone: (415) 892-1643. Providers update this record themselves, so call before visiting.

How can I verify Mariana Caplan, PHD's license?

NPPES lists California license number 00190559, 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.