Individual provider Active NPI

Brittany Marie Defendis, LCSW

  • Clinical Social Worker
  • Fresno, CA
National Provider Identifier
1033947015
Registry record updated Jan 14, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
License
121469 Issued in CA
Practice address
1225 M St
Fresno, CA 93721-1805
Phone
(559) 600-9300
NPI assigned
Jul 23, 2024
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 14, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Social Worker 1041C0700X 121469 CA Primary

Addresses

Primary practice location

1225 M St
Fresno, CA 93721-1805

Mailing address

1225 M St
Fresno, CA 93721-1805
Phone (559) 600-9300

Other names 1

  • Brittany Marie Mihall Former name

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
I20251119001486 CA Practitioner - Clinical Social Worker 7719478551 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Clinical Social Worker
Education
Other, 2021
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

5820 Owens Dr
Pleasanton, CA 94588-3900

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
121469CAMDPhlebology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Permanente Medical Group Inc Current Accepting new patients
Permanente Medical Group Inc CurrentSince Sep 6, 2025 Accepting new patients
Permanente Medical Group, Inc CurrentSince Sep 6, 2025 Accepting new patients

Locations

750 Auburn Ravine Rd
Auburn, CA 95603
Phone (530) 823-6131

4785 N 1st St
Fresno, CA 93726
Phone (559) 448-4555

4753 W Shaw Ave
Ste 101
Fresno, CA 93722
Phone (559) 277-8738

900 N Douty St
Hanford, CA 93230
Phone (559) 587-9014

101 Monroe St
Petaluma, CA 94954
Phone (707) 763-4109

1150 Veterans Blvd
Redwood City, CA 94063
Phone (650) 299-2015

901 Nevin Ave
Richmond, CA 94801
Phone (510) 307-1500

930 W Main St
Ripon, CA 95366
Phone (209) 599-4221

501 J St
Sacramento, CA 95814
Phone (916) 497-3000

2200 Ofarrell St
San Francisco, CA 94115
Phone (415) 202-2000

710 Lawrence Expy
Santa Clara, CA 95051
Phone (408) 236-6400

5615 Scotts Valley Dr
Scotts Valley, CA 95066
Phone (831) 430-2700

7373 West Ln
Stockton, CA 95210
Phone (209) 476-2000

975 Sereno Dr
Vallejo, CA 94589
Phone (707) 651-1000

320 N Crawford St
Willows, CA 95988
Phone (530) 934-2834

Organizations & group practices 3

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": "1721692800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768348800000",
    "number": "1033947015",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1225 M ST",
            "city": "FRESNO",
            "state": "CA",
            "postal_code": "937211805",
            "telephone_number": "559-600-9300"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1225 M ST",
            "city": "FRESNO",
            "state": "CA",
            "postal_code": "937211805",
            "telephone_number": "559-600-9300"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEFENDIS",
        "first_name": "BRITTANY",
        "middle_name": "MARIE",
        "credential": "LCSW",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-07-23",
        "last_updated": "2026-01-14",
        "certification_date": "2026-01-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "121469",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "BRITTANY",
            "last_name": "MIHALL",
            "middle_name": "MARIE",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Fresno, CA

Sources for this page

Verify at the official NPI Registry.