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

MR. CHRISTOPHER HO-YUN CHANG LMFT
NPI 1427866532
Marriage & Family Therapist in Mill Creek, WA

Active since December 20, 2024
621 164TH ST SE, MILL CREEK, WA 98012(425) 426-4802 Get Directions Write a Review

NPPES record last updated: September 9, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Sep 9, 2026, Jul 23, 2026, Sep 16, 2025 and 1 more (4 updates tracked since 2024).

About Mr. Christopher Ho-yun Chang Lmft NPPES

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

MR. CHRISTOPHER HO-YUN CHANG LMFT (NPI 1427866532) is an individual marriage & family therapist in Mill Creek, Washington, licensed in Washington (70117257) and active in the NPI registry since December 2024. He maintains a secondary practice location in Lynnwood.

NPPES Registry Identity

NPI1427866532
Entity TypeIndividualMale
Primary Taxonomy106H00000X
Provider Legal NameMR. CHRISTOPHER HO-YUN CHANGCredential: LMFT
Location Address621 164TH ST SEMill Creek, WA 98012-6303
Mailing Address15715 27th Pl WLynnwood, WA 98087-5963 · (425) 426-4802
Phone(425) 426-4802
Sole ProprietorYes
Enumeration DateDecember 20, 2024
Last NPPES UpdateSeptember 9, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 9, 2026
✔ NPI 1427866532 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 WA · 70117257
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.
621 164TH ST SE, Mill Creek, WA 98012
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Secondary Practice Location 1

Location 117319 Larch WayLynnwood, WA 98037-8202 · Phone (425) 426-4802

Other Providers at the Same Location NPPES

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

DIANE K HASTINGS
Marriage & Family Therapist
621 164TH ST SE
MILL CREEK, WA 98012
Snohomish County (425) 670-2120

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 Christopher Chang's NPI number?

The NPI number for Christopher Chang is 1427866532. It was assigned to this individual provider in the NPPES registry on December 20, 2024.

Where is Christopher Chang located?

Christopher Chang practices at 621 164th St SE, Mill Creek, WA 98012. The listed phone number is (425) 426-4802.

What is Christopher Chang'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 Christopher Chang was last updated on September 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.