NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Bitz

Optician in Bismarck, ND · enumerated 2007.

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

National Provider Identifier

1619169174

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John Bitz
Sex Male
Practice address 210 W Front Ave, Bismarck, ND, 58504
Enumeration date Aug 17, 2007
Last updated in NPPES Feb 15, 2008

Taxonomy & licenses

156FX1800X Optician Eye and Vision Services Providers · License 134601 00 (ND) Primary

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 John Bitz?
The National Provider Identifier (NPI) for John Bitz is 1619169174, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Bitz practice?
The practice location on file with NPPES is in Bismarck, ND. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-15.