NPPES file of Aug 9, 2026

Katherine Doi

Marriage & Family Therapist · Long Beach, CA

Katherine Doi is a marriage & family therapist with a practice address in Long Beach, California, and NPI 1598943235, issued on Feb 5, 2008. Check the license (California LMFT128982, 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
1598943235
Name
Katherine Doi
Primary taxonomy
Marriage & Family Therapist 106H00000X
License numbers
LMFT128982 CA
AMFT126408 CA
Self-reported in NPPES; status is on the state search
Practice location
4001 Long Beach Blvd, Long Beach, CA 90807
Phone
(562) 427-7671
Enumerated
Feb 5, 2008
Record last updated
Dec 7, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(562) 595-4704
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 4001 Long Beach Blvd

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

  1. Savannah AimeritoMarriage & Family Therapist1275318537
  2. Byron Apen, ACSW, MSWClinical Social Worker1386513760
  3. Anna Arellano, B.A.Case Manager/Care Coordinator1548394174
  4. Deseree Bohanan, MSW, LCSWMental Health Counselor1083803092
  5. Jennifer FloresCase Manager/Care Coordinator1306194980
  6. Sandra Gaia-Rae, M.A.Case Manager/Care Coordinator1881718096

Verify Katherine Doi 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 LMFT128982    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.

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Katherine Doi among 59,889 marriage & family therapist records in California

Katherine Doi 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 2008, is newer than 23% of them.

  • NPI issued2008 · 23% of these records are older, 73% newer
  • In a Medicare fileNo · 4% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2021 · 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).

1,146 marriage & family therapist records list a practice address in Long Beach

They are 1,146 of the 13,650 NPPES records with a practice address in Long Beach, 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 Long Beach → Marriage & Family Therapist nationwide →

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

  1. Aimee Brasher, MFTLong Beach, CA 908071184782567
  2. Joanna Cain, ED.D. ASSOCIATELong Beach, CA 908071255475653
  3. Brigitte Dutil, LMFCLong Beach, CA 908071548330947
  4. Ana Garcia, MA, MFTLong Beach, CA 908071316036239
  5. Jacqueline Hirk, PH.DLong Beach, CA 908071326130543
  6. Linda Huizenga, MA, MFTLong Beach, CA 908071083758643
  7. Kevin Kilbane, PH. D., M.A., MFTLong Beach, CA 908071720097983
  8. Jeanne Knox, LMFTLong Beach, CA 908071659467546

Common questions

What is Katherine Doi's NPI number?

Katherine Doi's National Provider Identifier (NPI) is 1598943235, issued on Feb 5, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Doi located?

The NPPES record lists a practice address at 4001 Long Beach Blvd, Long Beach, CA, 90807. Phone: (562) 427-7671. Providers update this record themselves, so call before visiting.

How can I verify Katherine Doi's license?

NPPES lists California license number LMFT128982, 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.