Doctor profile · Federal record

Dr. Darwin Chentnik, O.D.

Optometrist · Milwaukee, WI

  • NPI 1326107988
  • 20 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3800 S. 27Th St.
Milwaukee, WI 53221
(414) 384-2020
fax (414) 383-5099

Credentials & registration

NPPES · NUCC
NPI registered
December 2006 — 20 yrs on file
Profile last updated
August 9, 2011
Specialty taxonomy
152W00000X — NUCC code
State license (1)
Wisconsin #WI 2896-035
Medicaid
WI #38622000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1326107988. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$176
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Glaukos Corporation 1 $176.10

By nature of payment

Food and Beverage
$176

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
27
Patients
0
Total drug cost
$722
Drug Type Claims Patients Total cost
Latanoprost Generic 27 0 $722

Frequently asked questions

Auto-generated from federal data
What is Dr. Darwin Chentnik's medical specialty?
Dr. Darwin Chentnik practices Optometrist in Milwaukee, WI.
Where does Dr. Darwin Chentnik practice?
Dr. Darwin Chentnik practices at 3800 S. 27Th St., Milwaukee, WI 53221. Office phone: 4143842020.
What is Dr. Darwin Chentnik's NPI?
Dr. Darwin Chentnik's National Provider Identifier (NPI) is 1326107988, issued by NPPES.