NPPES file of Aug 9, 2026

Mark Maxwell Keller, MFT

Marriage & Family Therapist · San Francisco, CA

Mark Maxwell Keller, MFT is a marriage & family therapist with a practice address in San Francisco, California, and NPI 1811257884, issued on May 23, 2012. Check the license (California MFC47750, 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
1811257884
Name
Mark Maxwell Keller
Credential
MFT
Primary taxonomy
Marriage & Family Therapist 106H00000X
License number
MFC47750 CA
Self-reported in NPPES; status is on the state search
Practice location
211 Gough St, San Francisco, CA 94102
Phone
(415) 894-5759
Enumerated
May 23, 2012
Record last updated
Jan 9, 2026
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 211 Gough St

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

  1. Juan Collins, L.AC.Acupuncturist1386888550
  2. Jennifer Cummings, M.D.Psychiatry Physician1447450044
  3. Kristin Felch, PSY.D.Clinical Psychologist1861732570
  4. Peter Forster, M.D.Psychiatry Physician1609975309
  5. Cynthia Front, PH.DMarriage & Family Therapist1891014346
  6. Steven Kohlstrom, PH.D.Clinical Psychologist1841209251

Verify Mark Maxwell Keller 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 MFC47750    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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Mark Maxwell Keller among 59,889 marriage & family therapist records in California

Mark Maxwell Keller, 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 2012, is newer than 37% of them.

  • NPI issued2012 · 37% of these records are older, 59% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2026 · 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. Leo Joslin, MFTSan Francisco, CA 941021356432736
  7. Beth Ohanneson, BETH OHANNESON, MFTSan Francisco, CA 941021407960982
  8. Amy Peterson, MFTSan Francisco, CA 941021225107444

Common questions

What is Mark Maxwell Keller, MFT's NPI number?

Mark Maxwell Keller, MFT's National Provider Identifier (NPI) is 1811257884, issued on May 23, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Mark Maxwell Keller, MFT located?

The NPPES record lists a practice address at 211 Gough St, San Francisco, CA, 94102. Phone: (415) 894-5759. Providers update this record themselves, so call before visiting.

How can I verify Mark Maxwell Keller, MFT's license?

NPPES lists California license number MFC47750, 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.