NPPES file of Aug 9, 2026

Jack Warren Maslow, MSW

Mental Health Counselor · Kentfield, CA

Jack Warren Maslow, MSW is a mental health counselor with a practice address in Kentfield, California, and NPI 1235267071, issued on Mar 2, 2007. Check the license (California LCS3629, 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
1235267071
Name
Jack Warren Maslow
Credential
MSW
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
LCS3629 CA
Self-reported in NPPES; status is on the state search
Practice location
1030 Sir Francis Drake Blvd, Kentfield, CA 94904
Phone
(415) 454-7698
Enumerated
Mar 2, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(415) 924-4456
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 1030 Sir Francis Drake Blvd

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

  1. Debra Bellings-Kee, MFTMental Health Counselor1477634996
  2. Alexander Bloom, LCSWClinical Social Worker1144503772
  3. Eileen Brown, LMFTMarriage & Family Therapist1356496525
  4. Sarah Centeno, MDPsychiatry Physician1366409922
  5. Robin GlantzMarriage & Family Therapist1962944397
  6. Sheryl Hausman, PH.D.Clinical Psychologist1114073319

Verify Jack Warren Maslow 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 LCS3629
    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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Jack Warren Maslow among 28,617 mental health counselor records in California

Jack Warren Maslow, MSW 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 2007, is newer than 4% of them.

  • NPI issued2007 · 4% of these records are older, 81% newer
  • In a Medicare fileNo · 1% of these records are
  • In the CMS Doctors and Clinicians fileNo · 3% of these records are
  • Record last updated2007 · 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).

20 mental health counselor records list a practice address in Kentfield

They are 20 of the 225 NPPES records with a practice address in Kentfield, 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. Debra Bellings-Kee, MFTKentfield, CA 949041477634996
  2. Amber ByasseeGreenbrae, CA 949041710077458
  3. Sharon DigullaGreenbrae, CA 949041548377369
  4. Seth FriedrichGreenbrae, CA 949041538382023
  5. Elizabeth Greason, L.C.S.W.Kentfield, CA 949041962457655
  6. Astrid JohnsonGreenbrae, CA 949041720298607
  7. Vicki MartiGreenbrae, CA 949041770791618
  8. Robin MayerKentfield, CA 949041205910429

Common questions

What is Jack Warren Maslow, MSW's NPI number?

Jack Warren Maslow, MSW's National Provider Identifier (NPI) is 1235267071, issued on Mar 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jack Warren Maslow, MSW located?

The NPPES record lists a practice address at 1030 Sir Francis Drake Blvd, Kentfield, CA, 94904. Phone: (415) 454-7698. Providers update this record themselves, so call before visiting.

How can I verify Jack Warren Maslow, MSW's license?

NPPES lists California license number LCS3629, 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.