Active NPI
Brent Richard Ferm, PHD
- Psychologist
- Martinez, CA
National Provider Identifier
1013957810
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- PSY13371
- Practice address
- 150 Muir Rd
Mental Health
Martinez, CA 94553-4668 - Phone
- (925) 372-2105
- Fax
- (415) 383-3868
- NPI assigned
- Jun 8, 2006
- Last updated
- Jul 13, 2026
- Sex
- Male
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Psychologist | 103T00000X | PSY13371 | CA | Primary |
Addresses
Primary practice location
150 Muir Rd
Mental Health
Martinez, CA 94553-4668
Mailing address
641 E Blithedale Ave
Mill Valley, CA 94941-1477
Phone (415) 383-0407
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| PSY13371 | CA | MD | Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149724800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1013957810",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "641 E BLITHEDALE AVE",
"city": "MILL VALLEY",
"state": "CA",
"postal_code": "949411477",
"telephone_number": "415-383-0407",
"fax_number": "415-383-3868"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "150 MUIR RD",
"address_2": "MENTAL HEALTH",
"city": "MARTINEZ",
"state": "CA",
"postal_code": "945534668",
"telephone_number": "925-372-2105",
"fax_number": "415-383-3868"
}
],
"practiceLocations": [],
"basic": {
"last_name": "FERM",
"first_name": "BRENT",
"middle_name": "RICHARD",
"credential": "PHD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-06-08",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "CA",
"license": "PSY13371",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Martinez, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.