Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Ann Katherine Williams MD, MD

Individual provider Ophthalmology Physician · NPI 1043216732

Dr. Ann Katherine Williams MD, MD is an Ophthalmology in Hammond, Indiana. Graduated from Northwestern University Feinberg Medical School in 1983, 43 years ago. Practices with Williams Eye Institute PC, a 7-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
43
Trained at
Northwestern University Feinberg Medical School
Licensed in
IL, IN
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6850 Hohman Ave
Hammond, IN 46324-1410
Phone: (219) 931-7509
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 9797 Massachusetts St, Crown Point, IN 46307-0278 — (219) 649-2704
  • 6836 Hohman Ave, Hammond, IN 46324-1410 — (219) 937-5063

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 01039204A (IN)
Ophthalmology Physician Taxonomy 207W00000X · Licence 036068962 (IL)

Record details

NPI number1043216732
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 27, 2005
Last updated in NPPESMarch 6, 2025
Certification dateMarch 6, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 1983 (43 years in practice)
Group practice Williams Eye Institute Pc — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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