NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory L Bittner Od LLC

Optometrist in Somerset, PA · enumerated 2016 · authorized official Gregory Bittner, Owner.

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

National Provider Identifier

1669833463

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Gregory L Bittner Od LLC
Practice address 268 W Union St, Somerset, PA, 15501
Fax (814) 443-1108
Enumeration date Mar 8, 2016
Last updated in NPPES Mar 8, 2016

Taxonomy & classification

152W00000X Optometrist Eye and Vision Services Providers · License OEG000649 (PA) Primary

Authorized official

Name Gregory Bittner
Title Owner

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 type of organization is Gregory L Bittner Od LLC?
Gregory L Bittner Od LLC is registered in NPPES as a Optometrist (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-08.