Active NPI
Marissa M Diaz, LCSW, PPSC
- School Social Worker
- Garden Grove, CA
National Provider Identifier
1902579030
On this page
Key facts
NPPES NPI Registry- Primary specialty
- School Social Worker
- License
- 122024
- Practice address
- 10331 Stanford Ave
Garden Grove, CA 92840-6351 - Phone
- (714) 663-6000
- NPI assigned
- Jul 26, 2021
- 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 |
|---|---|---|---|---|
| School Social Worker | 1041S0200X | 122024 | CA | Primary |
Addresses
Primary practice location
10331 Stanford Ave
Garden Grove, CA 92840-6351
Mailing address
10331 Stanford Ave
Garden Grove, CA 92840-6351
Phone (714) 663-6000
Other practice location 1
14642 Newport Ave Ste 200
Tustin, CA 92780-6058
Phone (714) 247-0300
Other practice location 2
1 Hope Dr
Tustin, CA 92782-0221
Phone (714) 247-0300
Other practice location 3
1100B N Tustin Ave Ste A
Santa Ana, CA 92705-3505
Phone (714) 247-0300
Other practice location 4
947 S Anaheim Blvd Ste 260
Anaheim, CA 92805-5591
Phone (714) 247-0300
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
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1627257600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1779062400000",
"number": "1902579030",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "10331 STANFORD AVE",
"city": "GARDEN GROVE",
"state": "CA",
"postal_code": "928406351",
"telephone_number": "714-663-6000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "10331 STANFORD AVE",
"city": "GARDEN GROVE",
"state": "CA",
"postal_code": "928406351",
"telephone_number": "714-663-6000"
}
],
"practiceLocations": [
{
"address_1": "14642 Newport Ave Ste 200",
"address_purpose": "LOCATION",
"city": "Tustin",
"state": "CA",
"postal_code": "927806058",
"country_code": "US",
"telephone_number": "714-247-0300",
"fax_number": "714-259-1598",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1 Hope Dr",
"address_purpose": "LOCATION",
"city": "Tustin",
"state": "CA",
"postal_code": "927820221",
"country_code": "US",
"telephone_number": "714-247-0300",
"fax_number": "714-259-1598",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1100B N Tustin Ave Ste A",
"address_purpose": "LOCATION",
"city": "Santa Ana",
"state": "CA",
"postal_code": "927053505",
"country_code": "US",
"telephone_number": "714-247-0300",
"fax_number": "714-259-1598",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "947 S Anaheim Blvd Ste 260",
"address_purpose": "LOCATION",
"city": "Anaheim",
"state": "CA",
"postal_code": "928055591",
"country_code": "US",
"telephone_number": "714-247-0300",
"fax_number": "714-259-1598",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "DIAZ",
"first_name": "MARISSA",
"middle_name": "M",
"credential": "LCSW, PPSC",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-07-26",
"last_updated": "2026-05-18",
"certification_date": "2026-05-18",
"status": "A"
},
"taxonomies": [
{
"code": "1041S0200X",
"taxonomy_group": "",
"desc": "Social Worker, School",
"state": "CA",
"license": "122024",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Garden Grove, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 18, 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.