Mercedes Maria Serafini
Clinical Social Worker · Long Beach, CA
Mercedes Maria Serafini is a clinical social worker with a practice address in Long Beach, California, and NPI 1346579992, issued on Dec 10, 2009. Check the license (California LCS26546, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mercedes Maria Serafini
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- LCS26546 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5150 E Pch Ste 100, Long Beach, CA 90804
- Phone
- (562) 490-7600
- Enumerated
- Dec 10, 2009
- Record last updated
- Dec 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (562) 490-7601
- Medicare enrollment
- Enrolled (PECOS I20160623001570); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 5150 E Pch Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gabriela BecerraRehabilitation Practitioner1881948818
- Rogene CerilloMarriage & Family Therapist1649513664
Verify Mercedes Maria Serafini in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license LCS26546Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Southern California Permanente Medical GroupBellflower, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mercedes Maria Serafini among 36,261 clinical social worker records in California
Mercedes Maria Serafini is one of 36,261 clinical social worker records with a practice address in California. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 28% of them.
- NPI issued2009 · 28% of these records are older, 69% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated2003 · median 2012 among the 4,008 with a school on file
- Record last updated2021 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
939 clinical social worker records list a practice address in Long Beach
They are 939 of the 13,650 NPPES records with a practice address in Long Beach, and 36,261 clinical social worker records in California.
All 36,261 in California → Every provider in Long Beach → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Andrea Bell, LCSWLong Beach, CA 908041750416350
- Geraldine Johnson, MSWLong Beach, CA 908041265520381
- Sandra MedinaLong Beach, CA 908041245360023
- Kuniko Miyagi, L.C.S.W.Long Beach, CA 908041134283393
- Kathy Moon, LCSWLong Beach, CA 908041952482176
- Saphay NanLong Beach, CA 908041558410068
- Michael Nava, L.C.S.W.Long Beach, CA 908041902930647
- Catherine Nguyen, MSW, LCSWLong Beach, CA 908041568633055
Common questions
What is Mercedes Maria Serafini's NPI number?
Mercedes Maria Serafini's National Provider Identifier (NPI) is 1346579992, issued on Dec 10, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mercedes Maria Serafini located?
The NPPES record lists a practice address at 5150 E Pch Ste 100, Long Beach, CA, 90804. Phone: (562) 490-7600. Providers update this record themselves, so call before visiting.
How can I verify Mercedes Maria Serafini's license?
NPPES lists California license number LCS26546, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.