Doctor profile · Federal record

Dr. Grant Williams, MD

Neurology Physician · Chicago, IL

  • NPI 1184318446
  • 3 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
600 S Paulina St
Chicago, IL 606123806
(312) 942-0312

Credentials & registration

NPPES · NUCC
NPI registered
June 2023 — 3 yrs on file
Profile last updated
June 17, 2024
Specialty taxonomy
2084N0400X — NUCC code
State license (1)
Illinois #125.084588

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184318446. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$94
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Atricure, INC. 1 $94.36

By nature of payment

Food and Beverage
$94

Frequently asked questions

Auto-generated from federal data
What is Dr. Grant Williams's medical specialty?
Dr. Grant Williams practices Neurology Physician in Chicago, IL.
Where does Dr. Grant Williams practice?
Dr. Grant Williams practices at 600 S Paulina St, Chicago, IL 606123806. Office phone: 3129420312.
What is Dr. Grant Williams's NPI?
Dr. Grant Williams's National Provider Identifier (NPI) is 1184318446, issued by NPPES.

Methodology · sources used on this page

All figures on this page come from publicly available federal datasets. We do not edit, score, or summarise the underlying data. Profile generated Sep 1, 2026.

NPPES Provider identifiers and practice info May 11, 2026
Open Payments Industry payments to providers (Sunshine Act) May 11, 2026
Medicare Procedure Utilization Services and allowed amounts by HCPCS May 11, 2026
Medicare Part D Prescription drug claims May 11, 2026
CMS MIPS Quality performance scores May 11, 2026
OIG LEIE Federal exclusion / sanctions list May 11, 2026

Information based on publicly available federal data. Not medical advice. Report incorrect data ›