Active NPI
Julia Justine Ostunio, AMFT
- Marriage & Family Therapist
- Tustin, CA
National Provider Identifier
1609736495
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Marriage & Family Therapist
- License
- 157940
- Practice address
- 1 Hope Dr
Tustin, CA 92782-0221 - Phone
- (714) 247-0300
- Fax
- (714) 259-1598
- NPI assigned
- Nov 13, 2025
- 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 |
|---|---|---|---|---|
| Marriage & Family Therapist | 106H00000X | 157940 | CA | Primary |
Addresses
Primary practice location
1 Hope Dr
Tustin, CA 92782-0221
Mailing address
14642 Newport Ave Ste 200
Tustin, CA 92780-6058
Phone (714) 247-0300
Other practice location 1
14642 Newport Ave Ste 200
Tustin, CA 92780-6058
Phone (714) 247-0300
Other practice location 2
1100B N Tustin Ave Ste A
Santa Ana, CA 92705-3505
Phone (714) 247-0300
Other practice location 3
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 157940 | CA | MD | Marriage & Family Therapist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1762992000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1762992000000",
"number": "1609736495",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "14642 NEWPORT AVE STE 200",
"city": "TUSTIN",
"state": "CA",
"postal_code": "927806058",
"telephone_number": "714-247-0300",
"fax_number": "714-259-1598"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1 HOPE DR",
"city": "TUSTIN",
"state": "CA",
"postal_code": "927820221",
"telephone_number": "714-247-0300",
"fax_number": "714-259-1598"
}
],
"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": "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": "OSTUNIO",
"first_name": "JULIA",
"middle_name": "JUSTINE",
"credential": "AMFT",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2025-11-13",
"last_updated": "2025-11-13",
"certification_date": "2025-11-13",
"status": "A"
},
"taxonomies": [
{
"code": "106H00000X",
"taxonomy_group": "",
"desc": "Marriage & Family Therapist",
"state": "CA",
"license": "157940",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Tustin, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 13, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.