NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Chang H Bak, RPH

Pharmacist in Lake Stevens, WA · enumerated 2011.

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

National Provider Identifier

1295003978

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Chang H Bak
Credential RPH
Sex Male
Practice address Lake Stevens, WA, 98258
Phone (425) 397-8944
Enumeration date Dec 8, 2011
Last updated in NPPES Dec 8, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License PH00058572 (WA) Primary
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy. About the RPH credential

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

What is the NPI number for Chang Bak?
The National Provider Identifier (NPI) for Chang Bak is 1295003978, a Type 1 (individual) record in the CMS NPPES registry.
Where does Chang Bak practice?
The practice location on file with NPPES is in Lake Stevens, WA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-08.