Registry data as of Aug 27, 2026

Mary Hammes, M.F.T.

Marriage & Family Therapist · Palo Alto, CA

Mary Hammes, M.F.T. is a marriage & family therapist with a practice address in Palo Alto, California, and NPI 1114038197, issued on Aug 31, 2006. Check the license 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
1114038197
Name
Mary Hammes
Credential
M.F.T.
Primary taxonomy
Marriage & Family Therapist 106H00000X
Practice location
4153 EL Camino Way Ste A, Palo Alto, CA 94306
Phone
(650) 493-4932
Enumerated
Aug 31, 2006
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 4153 EL Camino Way Ste A

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

  1. Teresa Garrett, PHDPsychologist1023163789
  2. Nancy Klimp, M.A.,, M.F.T.Mental Health Counselor1063667954
  3. Margaret Rogers, LMFTMarriage & Family Therapist1013014927
  4. Judith Yob, PHDPsychologist1104922145

Verify Mary Hammes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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 →

184 marriage & family therapist records list a Palo Alto practice address

They are 184 of the 7,617 NPPES records with a Palo Alto 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 Mary Hammes, M.F.T.'s NPI number?

Mary Hammes, M.F.T.'s National Provider Identifier (NPI) is 1114038197, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Hammes, M.F.T. located?

The NPPES record lists a practice address at 4153 EL Camino Way Ste A, Palo Alto, CA, 94306. Phone: (650) 493-4932. Providers update this record themselves, so call before visiting.

How can I verify Mary Hammes, M.F.T.'s license?

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.