Marie Jean Sefton
Social Worker · Richmond, CA
Marie Jean Sefton is a social worker with a practice address in Richmond, California, and NPI 1457750515, issued on Aug 14, 2014. Check the license (California 95308, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marie Jean Sefton
- Primary taxonomy
- Social Worker 104100000X
- License number
- 95308 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4300 Barrett Ave, Richmond, CA 94805
- Phone
- (925) 437-4938
- Enumerated
- Aug 14, 2014
- Record last updated
- Aug 24, 2023
- Medicare enrollment
- Enrolled (PECOS I20260226003998); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest social worker records → All 10,332 in California → Look up another NPI →
Verify Marie Jean Sefton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95308Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Marie Jean Sefton among 10,332 social worker records in California
Marie Jean Sefton is one of 10,332 social worker records with a practice address in California. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2014, is newer than 32% of them.
- NPI issued2014 · 32% of these records are older, 65% newer
- In a Medicare fileNo · 2% of these records are
- In the CMS Doctors and Clinicians fileYes · 3% of these records are
- Graduated2016 · median 2015 among the 299 with a school on file
- Record last updated2023 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 social worker records list a practice address in Richmond
They are 37 of the 1,696 NPPES records with a practice address in Richmond, and 10,332 social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 10,332 in California → Every provider in Richmond → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Adilene AlvaradoRichmond, CA 948051013693324
- Annette CasillasSan Pablo, CA 948051972065209
- Jorge CortesRichmond, CA 948051316120769
- Diana EscamillaRichmond, CA 948051124672878
- Anali FloresRichmond, CA 948051861941353
- Assata HarrisRichmond, CA 948051134831852
- Huong Keim, ASWRichmond, CA 948051205533171
- Alejandra LedezmaRichmond, CA 948051376786657
Common questions
What is Marie Jean Sefton's NPI number?
Marie Jean Sefton's National Provider Identifier (NPI) is 1457750515, issued on Aug 14, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Marie Jean Sefton located?
The NPPES record lists a practice address at 4300 Barrett Ave, Richmond, CA, 94805. Phone: (925) 437-4938. Providers update this record themselves, so call before visiting.
How can I verify Marie Jean Sefton's license?
NPPES lists California license number 95308, 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. 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.