Lynn F. Y. Yamamoto, M.S., M.F.T.
Marriage & Family Therapist · Diamond Bar, CA
Lynn F. Y. Yamamoto, M.S., M.F.T. is a marriage & family therapist with a practice address in Diamond Bar, California, and NPI 1104045434, issued on Apr 25, 2007. Check the license (California MFC20455, 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.
- Name
- Lynn F. Y. Yamamoto
- Credential
- M.S., M.F.T.
- Primary taxonomy
- Marriage & Family Therapist 106H00000X
- License number
- MFC20455 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 S Diamond Bar Blvd, Diamond Bar, CA 91765
- Phone
- (909) 396-6888
- Enumerated
- Apr 25, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (909) 396-6889
- Entity
- Type 1 · individual
8 nearest marriage & family therapist records → All 59,889 in California → Look up another NPI →
Also registered at 1200 S Diamond Bar Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brandi Funk, FNP-CFamily Nurse Practitioner1679753354
- Adel Hanna, MDPsychiatry Physician1194868224
Verify Lynn F. Y. Yamamoto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license MFC20455Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Lynn F. Y. Yamamoto among 59,889 marriage & family therapist records in California
Lynn F. Y. Yamamoto, M.S., M.F.T. 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 2007, is newer than 7% of them.
- NPI issued2007 · 7% of these records are older, 77% 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).
30 marriage & family therapist records list a practice address in Diamond Bar
They are 30 of the 598 NPPES records with a practice address in Diamond Bar, 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 Diamond Bar → Marriage & Family Therapist nationwide →
The 8 marriage & family therapist records with the nearest ZIP codes
- Elizabeth Annamraju, L.M.F.T.Diamond Bar, CA 917651346601663
- Jeanie Chavez, LMFTDiamond Bar, CA 917651194842658
- Anna Couch, LMFTDiamond Bar, CA 917651235246638
- Darshana Doshi, LMFTDiamond Bar, CA 917651871929760
- Patricia Danielah Germon, MADiamond Bar, CA 917651184925190
- Scott Kazarian, LMFTDiamond Bar, CA 917651376674069
- Roy KimDiamond Bar, CA 917651508214289
- Dolores Martin, MFTDiamond Bar, CA 917651477839843
Common questions
What is Lynn F. Y. Yamamoto, M.S., M.F.T.'s NPI number?
Lynn F. Y. Yamamoto, M.S., M.F.T.'s National Provider Identifier (NPI) is 1104045434, issued on Apr 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lynn F. Y. Yamamoto, M.S., M.F.T. located?
The NPPES record lists a practice address at 1200 S Diamond Bar Blvd, Diamond Bar, CA, 91765. Phone: (909) 396-6888. Providers update this record themselves, so call before visiting.
How can I verify Lynn F. Y. Yamamoto, M.S., M.F.T.'s license?
NPPES lists California license number MFC20455, 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.