Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

DEREK CHANG
NPI 1356254981
Dentist - General Practice in San Francisco, CA

Q: What is Derek Chang's NPI number?

The NPI number for Derek Chang is 1356254981. It was assigned to this individual provider in the NPPES registry on September 24, 2026.

Q: What is Derek Chang's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for Derek Chang was last updated on September 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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 24, 2026

345 W PORTAL AVE STE 210, SAN FRANCISCO, CA 94127(415) 681-1011 Get Directions Write a Review

NPPES record added: September 25, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

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About Derek Chang NPPES

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

DEREK CHANG (NPI 1356254981) is an individual general practice provider in San Francisco, California, licensed in California (113634) and active in the NPI registry since September 2026.

NPPES Registry Identity

NPI1356254981

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDEREK CHANG

Location Address345 W PORTAL AVE STE 210San Francisco, CA 94127-1429

Mailing Address345 W Portal Ave Ste 210San Francisco, CA 94127-1429 · (415) 681-1011

Phone(415) 681-1011

Sole ProprietorNo

Enumeration DateSeptember 24, 2026

Last NPPES UpdateSeptember 25, 2026

NPPES CertifiedSeptember 25, 2026

✔ NPI 1356254981 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in CA · 113634

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

345 W PORTAL AVE STE 210, San Francisco, CA 94127

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Other Providers at the Same Location NPPES

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

JULIA A. HALLISY D.D.S., INC.

Dentist (General Practice)

345 W PORTAL AVE STE 210
SAN FRANCISCO, CA 94127

San Francisco County (415) 681-1011

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 Derek Chang's NPI number?

The NPI number for Derek Chang is 1356254981. It was assigned to this individual provider in the NPPES registry on September 24, 2026.

Where is Derek Chang located?

Derek Chang practices at 345 W Portal Ave Ste 210, San Francisco, CA 94127. The listed phone number is (415) 681-1011.

What is Derek Chang's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for Derek Chang was last updated on September 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.