Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MATTHEW GARRETT ONG MFT
NPI 1972736379
Marriage & Family Therapist in Oakland, CA

Q: What is Matthew Ong's NPI number?

The NPI number for Matthew Ong is 1972736379. It was assigned to this individual provider in the NPPES registry on September 1, 2009.

Q: What is Matthew Ong's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Matthew Ong was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.

Active since September 01, 2009

5275 CLAREMONT AVE, OAKLAND, CA 94618(510) 428-3885(510) 601-3913 Get Directions Write a Review

NPPES record last updated: July 16, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 16, 2026, Apr 10, 2018 (2 updates tracked since 2018).

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About Matthew Garrett Ong Mft NPPES

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

MATTHEW GARRETT ONG MFT (NPI 1972736379) is an individual marriage & family therapist in Oakland, California, licensed in California (MFT85039) and active in the NPI registry since September 2009. He maintains a secondary practice location in Oakland.

NPPES Registry Identity

NPI1972736379

Entity TypeIndividualMale

Primary Taxonomy106H00000X

Provider Legal NameMATTHEW GARRETT ONGCredential: MFT

Location Address5275 CLAREMONT AVEOakland, CA 94618-1032

Mailing Address5275 Claremont AveOakland, CA 94618-1032 · (510) 428-3885 · Fax (510) 603-3913

Phone(510) 428-3885

Fax(510) 601-3913

Sole ProprietorNo

Enumeration DateSeptember 1, 2009

Last NPPES UpdateJuly 16, 20262 updates tracked since enumeration

NPPES CertifiedJuly 16, 2026

✔ NPI 1972736379 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 · MFT85039

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.

5275 CLAREMONT AVE, Oakland, CA 94618

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Secondary Practice Location 1

Location 1770 53rd StOakland, CA 94609-1814 · Phone (510) 428-3885

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.

CHIZITE CHIMA IGWE

Counselor

5275 CLAREMONT AVE
OAKLAND, CA 94618

Alameda County (510) 428-3885

MATTHEW MENDEZ

Licensed Psychiatric Technician

5275 CLAREMONT AVE
OAKLAND, CA 94618

Alameda County (510) 428-3000

CHILDREN'S HOSPITAL AND RESEARCH CENTER-OAKLAND

General Acute Care Hospital (Children)

5275 CLAREMONT AVE, CENTER FOR THE VULNERABLE CHILD
OAKLAND, CA 94618

Alameda County (510) 428-3885

DIANA MANDUJANO LMFT

Marriage & Family Therapist

5275 CLAREMONT AVE
OAKLAND, CA 94618

Alameda County (510) 428-3000

MS. RACHEL LEIGH WILSON M.S.W.

Social Worker (Clinical)

5275 CLAREMONT AVE
OAKLAND, CA 94618

Alameda County (510) 428-3885

DR. DAVID HOSKINS PSY.D, M.A.S.

Psychologist

5275 CLAREMONT AVE
OAKLAND, CA 94618

Alameda County (510) 428-3160

LOURDES MARIE GARCIA

Social Worker (Clinical)

5275 CLAREMONT AVE
OAKLAND, CA 94618

Alameda County (510) 428-3000

JILL MILLER PSY.D

Psychologist (Clinical Child & Adolescent)

5275 CLAREMONT AVE, CENTER FOR THE VULNERABLE CHILD
OAKLAND, CA 94618

Alameda County (510) 428-3885

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 Matthew Ong's NPI number?

The NPI number for Matthew Ong is 1972736379. It was assigned to this individual provider in the NPPES registry on September 1, 2009.

Where is Matthew Ong located?

Matthew Ong practices at 5275 Claremont Ave, Oakland, CA 94618. The listed phone number is (510) 428-3885.

What is Matthew Ong'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 Matthew Ong was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.