Melissa Fitzsimmons, LCSW
NPI 1174001473 · Clinical Social Worker · Los Alamitos, CA
Melissa Fitzsimmons, LCSW is a Clinical Social Worker provider in Los Alamitos, CA (NPI 1174001473).
Provider details
- NPI number
- 1174001473
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 131666 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-07-30
- Last updated
- 2026-03-16
- Certified
- 2026-03-16
Frequently asked questions
- What is Melissa Fitzsimmons's NPI number?
- Melissa Fitzsimmons's National Provider Identifier (NPI) is 1174001473, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Fitzsimmons's specialty?
- Melissa Fitzsimmons is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Melissa Fitzsimmons located?
- Melissa Fitzsimmons's practice location on file with NPPES is 10650 Reagan St, Los Alamitos, CA 90720-8800.
- What is Melissa Fitzsimmons's phone number?
- The practice phone number listed in the NPPES registry for Melissa Fitzsimmons is (562) 826-6690.
- Is Melissa Fitzsimmons's NPI active?
- Yes — Melissa Fitzsimmons's NPI (1174001473) is active in the NPPES registry as of the last update on 2026-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.