Active NPI
David King
- Peer Specialist
- Hayward, CA
National Provider Identifier
1225980543
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Peer Specialist
- License
- MPSS-YCNIWH
- Practice address
- 795 Fletcher LN
Hayward, CA 94544-1008 - Phone
- (510) 247-8300
- Fax
- (510) 247-8295
- NPI assigned
- Feb 10, 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 |
|---|---|---|---|---|
| Peer Specialist | 175T00000X | MPSS-YCNIWH | CA | Primary |
Addresses
Primary practice location
795 Fletcher LN
Hayward, CA 94544-1008
Mailing address
795 Fletcher LN
Hayward, CA 94544-1008
Phone (510) 247-8300
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MPSS-YCNIWH | CA | MD | Peer Specialist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Successful Alternatives for Addiction & Counseling Services, 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.
-
- Methadone Clinic
- Hayward, CA
- NPI 1952529711
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1770681600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1770681600000",
"number": "1225980543",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "795 FLETCHER LN",
"city": "HAYWARD",
"state": "CA",
"postal_code": "945441008",
"telephone_number": "510-247-8300",
"fax_number": "510-247-8295"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "795 FLETCHER LN",
"city": "HAYWARD",
"state": "CA",
"postal_code": "945441008",
"telephone_number": "510-247-8300",
"fax_number": "510-247-8295"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KING",
"first_name": "DAVID",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2026-02-10",
"last_updated": "2026-02-10",
"certification_date": "2026-02-10",
"status": "A"
},
"taxonomies": [
{
"code": "175T00000X",
"taxonomy_group": "",
"desc": "Peer Specialist",
"state": "CA",
"license": "MPSS-YCNIWH",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Hayward, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 10, 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.