1. Home
  2. Directory
  3. California
  4. Tustin
  5. Marriage Family Therapist
  6. NPI Profile

JULIA JUSTINE OSTUNIO AMFT
NPI 1609736495
Marriage & Family Therapist in Tustin, CA

Active since November 13, 2025
1 HOPE DR, TUSTIN, CA 92782(714) 247-0300(714) 259-1598 Get Directions Write a Review

NPPES record last updated: November 13, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Julia Justine Ostunio Amft NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JULIA JUSTINE OSTUNIO AMFT (NPI 1609736495) is an individual marriage & family therapist in Tustin, California, licensed in California (157940) and active in the NPI registry since November 2025. She maintains 3 additional practice locations.

NPPES Registry Identity

NPI1609736495
Entity TypeIndividualFemale
Primary Taxonomy106H00000X
Provider Legal NameJULIA JUSTINE OSTUNIOCredential: AMFT
Location Address1 HOPE DRTustin, CA 92782-0221
Mailing Address14642 Newport Ave Ste 200Tustin, CA 92780-6058 · (714) 247-0300 · Fax (714) 259-1598
Phone(714) 247-0300
Fax(714) 259-1598
Sole ProprietorYes
Enumeration DateNovember 13, 2025
NPPES CertifiedNovember 13, 2025
✔ NPI 1609736495 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers
Taxonomy Code106H00000X
License✔ Licensed in CA · 157940
Definition
A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
1 HOPE DR, Tustin, CA 92782
Open in Google Maps ↗

Secondary Practice Locations 3

Location 1947 S Anaheim Blvd Ste 260Anaheim, CA 92805-5591 · Phone (714) 247-0300 · Fax (714) 259-1598
Location 214642 Newport Ave Ste 200Tustin, CA 92780-6058 · Phone (714) 247-0300 · Fax (714) 259-1598
Location 31100B N Tustin Ave Ste ASanta Ana, CA 92705-3505 · Phone (714) 247-0300 · Fax (714) 259-1598

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ELIZABETH TRUJILLO RN
Registered Nurse
1 HOPE DR
TUSTIN, CA 92782
Orange County (714) 247-0300
KIMBERLY TORRES ACSW
Social Worker (Clinical)
1 HOPE DR
TUSTIN, CA 92782
Orange County (714) 247-0300
SILVIA CHOVIT ACSW
Social Worker (Clinical)
1 HOPE DR
TUSTIN, CA 92782
Orange County (714) 247-0300
VANESSA YVONNE SANTIAGO VO FNP
Nurse Practitioner (Family)
1 HOPE DR
TUSTIN, CA 92782
Orange County (714) 247-0300
RAFAEL CEJA OCHOA RDH
Dental Hygienist
1 HOPE DR
TUSTIN, CA 92782
Orange County (714) 247-0300
JONATHAN RAMONTY CHHEAN NP
Nurse Practitioner (Family)
1 HOPE DR
TUSTIN, CA 92782
Orange County (714) 247-0300
SUNEUN SARAH REICHERT DO
Family Medicine
1 HOPE DR
TUSTIN, CA 92782
Orange County (714) 247-0300
CATHRIN HEE LIM MD
Family Medicine
1 HOPE DR
TUSTIN, CA 92782
Orange County (714) 247-0300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Julia Ostunio's NPI number?

The NPI number for Julia Ostunio is 1609736495. It was assigned to this individual provider in the NPPES registry on November 13, 2025.

Where is Julia Ostunio located?

Julia Ostunio practices at 1 Hope Dr, Tustin, CA 92782. The listed phone number is (714) 247-0300.

What is Julia Ostunio's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Julia Ostunio was last updated on November 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.