Active NPI
Linda Michelle Ruiz, LCSW
- Clinical Social Worker
- Berkeley, CA
National Provider Identifier
1316747546
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- 123213
- Practice address
- PO Box 11247
Berkeley, CA 94712-2247 - Phone
- (510) 215-5001
- Fax
- (510) 215-1115
- NPI assigned
- Mar 17, 2025
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Clinical Social Worker | 1041C0700X | 123213 | CA | Primary |
Addresses
Primary practice location
PO Box 11247
Berkeley, CA 94712-2247
Mailing address
PO Box 11247
Berkeley, CA 94712-2247
Phone (510) 215-5001
Other names 1
- Linda Williams Ruiz
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
Care Compare profile
Medicare Care Compare- Specialty
- Clinical Social Worker
- Education
- Other, 2018
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
PO Box
Dallas, TX 75373
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 123213 | CA | MD | Marriage & Family Therapist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Center for New Directions, Inc. | Past | Accepting new patients |
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.
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NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1742169600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1779926400000",
"number": "1316747546",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 11247",
"city": "BERKELEY",
"state": "CA",
"postal_code": "947122247",
"telephone_number": "510-215-5001",
"fax_number": "510-215-1115"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "PO BOX 11247",
"city": "BERKELEY",
"state": "CA",
"postal_code": "947122247",
"telephone_number": "510-215-5001",
"fax_number": "510-215-1115"
}
],
"practiceLocations": [],
"basic": {
"last_name": "RUIZ",
"first_name": "LINDA",
"middle_name": "MICHELLE",
"credential": "LCSW",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2025-03-17",
"last_updated": "2026-05-28",
"certification_date": "2026-05-28",
"status": "A"
},
"taxonomies": [
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "CA",
"license": "123213",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "LINDA",
"last_name": "RUIZ",
"middle_name": "WILLIAMS",
"credential": "LCSW",
"code": "1",
"type": "Former Name"
}
]
}Other providers in Berkeley, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 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.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.