Doctor profile · Federal record

Dr. Adam Niemann, MD

Gastroenterology Physician (CMS: Gastroenterology) · Quincy, IL

  • NPI 1780188292
  • Accepts Medicare
  • 8 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1118 Hampshire St
Quincy, IL 623013027
(217) 222-6550
fax (217) 221-4579

Credentials & registration

NPPES · NUCC
NPI registered
March 2018 — 8 yrs on file
Profile last updated
September 26, 2024
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Illinois #036167091

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1780188292. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$162
Transactions
9
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 4 $63.20
Gilead Sciences, INC. 1 $24.50
Phathom Pharmaceuticals, INC. 1 $24.00
Takeda Pharmaceuticals U.S.A., INC. 1 $18.36
Janssen Biotech, INC. 1 $16.81
Pfizer INC. 1 $14.81

By nature of payment

Food and Beverage
$162

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
36
Patients
0
Total drug cost
$690
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 21 0 $365
Omeprazole Generic 15 0 $325

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Adam Niemann's medical specialty?
Dr. Adam Niemann practices Gastroenterology Physician in Quincy, IL.
Where does Dr. Adam Niemann practice?
Dr. Adam Niemann practices at 1118 Hampshire St, Quincy, IL 623013027. Office phone: 2172226550.
What is Dr. Adam Niemann's NPI?
Dr. Adam Niemann's National Provider Identifier (NPI) is 1780188292, issued by NPPES.
Does Dr. Adam Niemann accept Medicare assignment?
Yes. Dr. Adam Niemann accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.