NPPES file of Aug 9, 2026

Williams Eye Institute, PC in Hammond, IN

This location of Williams Eye Institute bills under NPI 1689670390, an organization record issued on Jun 27, 2005 with the primary taxonomy Ambulatory Surgical Clinic/Center. It is one of 4 NPIs registered under this name and one of 3 in Hammond; each clinician who sees you there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1689670390
Legal name
Williams Eye Institute, PC
Entity
Type 2 · organization
Primary taxonomy
Ambulatory Surgical Clinic/Center 261QA1903X
Practice location
6836 HOHMAN AVENUE, Hammond, IN 46324
Phone
219-937-5063
Mailing address
Crown Point, IN
Enumerated
Jun 27, 2005
Record updated
Oct 9, 2024
Authorized official
President (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

The other 2 Hammond NPIs

  1. Williams Eye Institute, PC6850 HOHMAN AVE · issued Jun 27, 20051407852106
  2. Williams Eye Institute, PC6850 HOHMAN AVE · issued Jul 31, 20061497761845

6 clinicians CMS lists with Williams Eye Institute in Hammond

  1. Elaine Kelly, MDOphthalmology Physician1982264206
  2. Mary Otoo, OD, MPHOptometrist1508578733
  3. Lisa Saks-Knestrict, ODOptometrist1043380181
  4. Blake Williams, MDOphthalmology Physician1497101018
  5. Ann Williams Md, MDOphthalmology Physician1043216732
  6. Douglas Williams Md, MDOphthalmology Physician1609872332

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 4 Williams Eye Institute NPIs

Every location registered under this name, in 2 cities.

See every location

Checking an organization

  1. Confirm the business with the Indiana secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Which Hammond NPI should I use?

Ask the office which NPI it bills under; all 3 Hammond NPIs are registered under the same name.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.