NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Williams Eye Institute, PC

Ambulatory Surgical Clinic/Center in Hammond, IN · enumerated 2005 · authorized official Douglas Williams, President.

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

National Provider Identifier

1689670390

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Williams Eye Institute, PC
Other name <Unavail>
Practice address 6836 Hohman Avenue, Hammond, IN, 46324
Phone (219) 937-5063
Fax (219) 937-5093
Enumeration date Jun 27, 2005
Last updated in NPPES Oct 9, 2024

Taxonomy & classification

261QA1903X Ambulatory Surgical Clinic/Center Ambulatory Health Care Facilities · License 010110 (IN) Primary

Authorized official

Name Douglas Williams
Title President
Phone (219) 736-2200

Other identifiers

Identifier Type State Issuer
200390130 Medicaid IN -

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 Williams Eye Institute, PC?
The NPI for Williams Eye Institute, PC is 1689670390, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Williams Eye Institute, PC?
NPPES lists Douglas Williams (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-09.