Active NPI
Gail Frizzell, LCSW
- Clinical Social Worker
- Benicia, CA
National Provider Identifier
1457768079
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 28564
- Practice address
- 865 West I Street
Benicia, CA 94510 - Phone
- (707) 290-5394
- NPI assigned
- Jul 15, 2014
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | 28564 | CA | Primary |
Addresses
Primary practice location
865 West I Street
Benicia, CA 94510
Mailing address
865 W I St
Benicia, CA 94510-2526
Phone (707) 290-5394
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
- Opted out of Medicare
- Yes, effective Feb 9, 2024 through Feb 9, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 28564 | CA | MD | General Practice Dentistry |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1405382400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785196800000",
"number": "1457768079",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "865 W I ST",
"city": "BENICIA",
"state": "CA",
"postal_code": "945102526",
"telephone_number": "707-290-5394"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "865 WEST I STREET",
"city": "BENICIA",
"state": "CA",
"postal_code": "94510",
"telephone_number": "707-290-5394"
}
],
"practiceLocations": [],
"basic": {
"last_name": "FRIZZELL",
"first_name": "GAIL",
"credential": "LCSW",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2014-07-15",
"last_updated": "2026-07-28",
"certification_date": "2026-07-28",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "CA",
"license": "28564",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Benicia, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 28, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.