Individual provider Active NPI

Marie Jean Sefton

  • Social Worker
  • Richmond, CA
National Provider Identifier
1457750515
Registry record updated Aug 24, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Social WorkerTaxonomy code 104100000X
License
95308 Issued in CA
Practice address
4300 Barrett Ave
Richmond, CA 94805-2356
Phone
(925) 437-4938
NPI assigned
Aug 14, 2014
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Aug 24, 2023

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X
Student in an Organized Health Care Education/Training Program 390200000X
Social Worker 104100000X 95308 CA Primary

Addresses

Primary practice location

4300 Barrett Ave
Richmond, CA 94805-2356

Mailing address

4300 Barrett Ave
Richmond, CA 94805-2356
Phone (925) 437-4938

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: No
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260226003998 CA Practitioner - Clinical Social Worker 3971084922 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Clinical Social Worker
Education
Other, 2016
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

66 E Flagler St
Miami, FL 33130-1807

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
95308CAMDSocial Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Grow Healthcare Group PC Clinical CurrentSince Jan 14, 2026 Accepting new patients

Locations

99 Almaden Blvd
Ste 600
San Jose, CA 95113
Phone (408) 402-4385

66 W Flagler St
Ste 900
Miami, FL 33130
Phone (786) 244-7711

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1407974400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1692835200000",
    "number": "1457750515",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4300 BARRETT AVE",
            "city": "RICHMOND",
            "state": "CA",
            "postal_code": "948052356",
            "telephone_number": "925-437-4938"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4300 BARRETT AVE",
            "city": "RICHMOND",
            "state": "CA",
            "postal_code": "948052356",
            "telephone_number": "925-437-4938"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SEFTON",
        "first_name": "MARIE",
        "middle_name": "JEAN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2014-08-14",
        "last_updated": "2023-08-24",
        "certification_date": "2023-08-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "CA",
            "license": "95308",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Richmond, CA

Sources for this page

Verify at the official NPI Registry.