NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher C Chang, PHARMD

Pharmacist in Oakland, CA · enumerated 2014.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1780085837

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Christopher C Chang
Credential PHARMD
Sex Male
Practice address 1800 Harrison St Fl 13, Oakland, CA, 94612
Phone (510) 219-6352
Enumeration date Sep 9, 2014
Last updated in NPPES Mar 1, 2022

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 71312 (CA) Primary
PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD credential

Other identifiers

Identifier Type State Issuer
71312 Other CA CALIFORNIA BOARD OF PHARMACY

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Christopher Chang practice?
The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Christopher Chang?
The National Provider Identifier (NPI) for Christopher Chang is 1780085837, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-01.