Registry data as of Aug 27, 2026

Michael Callahan

Marriage & Family Therapist · San Dimas, CA

Michael Callahan is a marriage & family therapist with a practice address in San Dimas, California, and NPI 1023972684, issued on Dec 9, 2025. Check the license (California 159885, 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1023972684
Name
Michael Callahan
Primary taxonomy
Marriage & Family Therapist 106H00000X
License number
159885 CA
Self-reported in NPPES; status is on the state search
Practice location
1111 W Covina Blvd, San Dimas, CA 91773
Phone
(909) 979-3722
Enumerated
Dec 9, 2025
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 1111 W Covina Blvd

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

  1. Mohsen 'Robin' Abari, DDSOrthodontics and Dentofacial Orthopedics Dentistry1841248580
  2. Mario Aleman, D.D.S.General Practice Dentistry1396955209
  3. Mohammad Ascha, DDSGeneral Practice Dentistry1093722704
  4. Alexandra DhusMental Health Counselor1548978133
  5. Safoorah Hakim, SLPSpeech-Language Pathologist1992567572
  6. Mohamed Kayali, D.D.S.Periodontics1477612406

Verify Michael Callahan 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 159885
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

86 marriage & family therapist records list a San Dimas practice address

They are 86 of the 942 NPPES records with a San Dimas practice address, and 52,961 marriage & family therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other marriage & family therapist records in California

  1. Lili Aames, LMFTSanta Fe Springs, CA1689836165
  2. Lynn Aamot, LMFTEl Dorado Hills, CA1508255027
  3. Nathan Aanderud, LMFTTorrance, CA1689036907
  4. Alex AaronSherman Oaks, CA1578442620
  5. Bianca Aaron, LMFT, APCCSan Francisco, CA1316459605
  6. Kelley Aaron, MFTLos Angeles, CA1699068866
  7. Ruth Aaron, MS, JD, MFTClaremont, CA1316029697
  8. Terry Aaron, MFTBurbank, CA1386801173
  9. Azadeh Aarons, LMFTThousand Oaks, CA1679343974
  10. Bianca Aarons, MA,LMFTSan Francisco, CA1699286732

Common questions

What is Michael Callahan's NPI number?

Michael Callahan's National Provider Identifier (NPI) is 1023972684, issued on Dec 9, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Michael Callahan located?

The NPPES record lists a practice address at 1111 W Covina Blvd, San Dimas, CA, 91773. Phone: (909) 979-3722. Providers update this record themselves, so call before visiting.

How can I verify Michael Callahan's license?

NPPES lists California license number 159885, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.