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MELISSA FITZSIMMONS LCSW
NPI 1174001473
Social Worker - Clinical in Los Alamitos, CA

Active since July 30, 2018
10650 REAGAN ST, LOS ALAMITOS, CA 90720(562) 826-6690 Get Directions Write a Review

NPPES record last updated: March 16, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 16, 2026, Jul 30, 2018 (2 updates tracked since 2018).

About Melissa Fitzsimmons Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MELISSA FITZSIMMONS LCSW (NPI 1174001473) is an individual clinical provider in Los Alamitos, California, licensed in California (131666) and active in the NPI registry since July 2018.

NPPES Registry Identity

NPI1174001473
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMELISSA FITZSIMMONSCredential: LCSW
Location Address10650 REAGAN STLos Alamitos, CA 90720-8800
Mailing AddressPo Box 573Los Alamitos, CA 90720-0573
Phone(562) 826-6690
Sole ProprietorNo
Enumeration DateJuly 30, 2018
Last NPPES UpdateMarch 16, 20262 updates tracked since enumeration
NPPES CertifiedMarch 16, 2026
✔ NPI 1174001473 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · 131666
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
10650 REAGAN ST, Los Alamitos, CA 90720
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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MINDCARE PARTNERS, INC.
Psychiatry & Neurology (Child & Adolescent Psychiatry)
10650 REAGAN ST, UNIT 232
LOS ALAMITOS, CA 90720
Orange County (562) 833-0496
MS. ELLEN MARLENE SEHLMEYER P.T. , MFT
Marriage & Family Therapist
10650 REAGAN ST
LOS ALAMITOS, CA 90720
Orange County (562) 961-3581

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Melissa Fitzsimmons's NPI number?

The NPI number for Melissa Fitzsimmons is 1174001473. It was assigned to this individual provider in the NPPES registry on July 30, 2018.

Where is Melissa Fitzsimmons located?

Melissa Fitzsimmons practices at 10650 Reagan St, Los Alamitos, CA 90720. The listed phone number is (562) 826-6690.

What is Melissa Fitzsimmons's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Melissa Fitzsimmons was last updated on March 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.