Mercedes Serafini
NPI 1346579992 · Clinical Social Worker · Long Beach, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mercedes Serafini is a Clinical Social Worker provider in Long Beach, CA (NPI 1346579992).
Provider details
- NPI number
- 1346579992
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- LCS26546 (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
16 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
- 2009-12-10
- Last updated
- 2021-12-10
- Certified
- 2021-12-10
Frequently asked questions
- What is Mercedes Serafini's NPI number?
- Mercedes Serafini's National Provider Identifier (NPI) is 1346579992, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mercedes Serafini's specialty?
- Mercedes Serafini is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mercedes Serafini located?
- Mercedes Serafini's practice location on file with NPPES is 5150 E Pch Ste 100, Long Beach, CA 90804-3394.
- What is Mercedes Serafini's phone number?
- The practice phone number listed in the NPPES registry for Mercedes Serafini is (562) 490-7600.
- Does Mercedes Serafini accept Medicare?
- Mercedes Serafini is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mercedes Serafini's NPI active?
- Yes — Mercedes Serafini's NPI (1346579992) is active in the NPPES registry as of the last update on 2021-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.