IndividualActive
Melissa Marcus
NPI 1427133578 · Clinical Social Worker · Long Beach, CA
Melissa Marcus is a Clinical Social Worker provider in Long Beach, CA (NPI 1427133578).
Provider details
- NPI number
- 1427133578
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 29335 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
5901 E 7th St
Long Beach, CA 90822-5201
Phone: (562) 826-8000
Street-level locationGet directions
Mailing address
5901 E 7th St
Long Beach, CA 90822-5201
Registry dates
- Enumerated
- 2006-10-26
- Last updated
- 2025-05-02
- Certified
- 2025-05-02
Frequently asked questions
- What is Melissa Marcus's NPI number?
- Melissa Marcus's National Provider Identifier (NPI) is 1427133578, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Marcus's specialty?
- Melissa Marcus is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Melissa Marcus located?
- Melissa Marcus's practice location on file with NPPES is 5901 E 7th St, Long Beach, CA 90822-5201.
- What is Melissa Marcus's phone number?
- The practice phone number listed in the NPPES registry for Melissa Marcus is (562) 826-8000.
- Is Melissa Marcus's NPI active?
- Yes — Melissa Marcus's NPI (1427133578) is active in the NPPES registry as of the last update on 2025-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.