NPPES file of Aug 9, 2026

Leo Joslin, MFT

Marriage & Family Therapist · San Francisco, CA

Leo Joslin, MFT is a marriage & family therapist with a practice address in San Francisco, California, and NPI 1356432736, issued on Sep 28, 2006. Check the license (California MFC40057, 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
1356432736
Name
Leo Joslin
Credential
MFT
Primary taxonomy
Marriage & Family Therapist 106H00000X
License number
MFC40057 CA
Self-reported in NPPES; status is on the state search
Practice location
870 Market St, San Francisco, CA 94102
Phone
(415) 248-9360
Enumerated
Sep 28, 2006
Record last updated
Jul 8, 2007 (not updated in 19 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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8 nearest marriage & family therapist records → All 59,889 in California → Look up another NPI →

Also registered at 870 Market St

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

  1. Ping Adams, L. AC. OMDAcupuncturist1306004569
  2. Nadia Ashjaee, MFT, MA, REATMarriage & Family Therapist1902349434
  3. Jerome Braun, MFTMarriage & Family Therapist1043384548
  4. Kara Bunting, PH.D.Clinical Psychologist1427318252
  5. Marla Cass, MA, LMFTMarriage & Family Therapist1518411032
  6. Stephanie Catella, PSYDClinical Psychologist1063806586

Verify Leo Joslin 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 MFC40057    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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Leo Joslin among 59,889 marriage & family therapist records in California

Leo Joslin, MFT 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 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 93% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2007 · 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).

2,542 marriage & family therapist records list a practice address in San Francisco

They are 2,542 of the 38,143 NPPES records with a practice address in San Francisco, 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 San Francisco → Marriage & Family Therapist nationwide →

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

  1. Dorothy Boerste, LMFTSan Francisco, CA 941021033289376
  2. Dennis Bohan, MFTSan Francisco, CA 941021801906649
  3. Brenda Courtney, MFTSan Francisco, CA 941021386679181
  4. Jeannette Eisen, MFTSan Francisco, CA 941021033297577
  5. Pamela Grant, M.ED.San Francisco, CA 941021093742983
  6. Beth Ohanneson, BETH OHANNESON, MFTSan Francisco, CA 941021407960982
  7. Amy Peterson, MFTSan Francisco, CA 941021225107444
  8. Nina Rodrigues, MFTSan Francisco, CA 941021487747309

Common questions

What is Leo Joslin, MFT's NPI number?

Leo Joslin, MFT's National Provider Identifier (NPI) is 1356432736, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Leo Joslin, MFT located?

The NPPES record lists a practice address at 870 Market St, San Francisco, CA, 94102. Phone: (415) 248-9360. Providers update this record themselves, so call before visiting.

How can I verify Leo Joslin, MFT's license?

NPPES lists California license number MFC40057, 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.