Doctor profile · Federal record
Dr. Clark Antonson, MD
Gastroenterology Physician (CMS: Gastroenterology) · Specialist · Lincoln, NE
- NPI 1831182757
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4545 R St
Lincoln, NE 685033723
(402) 465-4545
fax (402) 465-3621
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- January 27, 2025
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Nebraska #17282
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1831182757. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
8,813
Distinct HCPCS
10
Medicare allowed
$323,784
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3380 |
Injection, vedolizumab, 1 mg | 6,600 | 17 | $22 | |
J1745 |
Injection, infliximab, excludes biosimilar, 10 mg | 1,080 | 15 | $33 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 250 | 250 | $228 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 119 | 73 | $75 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 117 | 115 | $5 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 89 | 88 | $166 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 82 | 79 | $98 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 77 | 76 | $90 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 48 | 48 | $122 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 41 | 41 | $169 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 428. This provider delivers 21× the peer median.Open Payments
Industry payments received
All-time total
$1,623
Transactions
24
Manufacturers
14
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 3 | $746.81 | |
| AIMMUNE THERAPEUTICS, INC. | 4 | $513.96 | |
| GENZYME CORPORATION | 1 | $78.58 | |
| Lilly USA, LLC | 4 | $69.52 | |
| Celgene Corporation | 3 | $47.14 | |
| Gilead Sciences, Inc. | 1 | $24.66 | |
| Madrigal Pharmaceuticals | 1 | $22.45 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $22.26 | |
| Janssen Biotech, Inc. | 1 | $19.29 | |
| Salix Pharmaceuticals, a division of Bausch Health US, LLC | 1 | $18.89 | |
| Intercept Pharmaceuticals, Inc. | 1 | $15.84 | |
| ABBVIE INC. | 1 | $14.82 | |
| UCB, Inc. | 1 | $14.31 | |
| PFIZER INC. | 1 | $14.05 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,042
Patients
468
Total drug cost
$131,520
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 255 | 71 | $4,536 |
| Pantoprazole Sodium | Generic | 206 | 55 | $3,698 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 154 | 153 | $2,566 |
| Plenvu (Peg3350/Sod Sul/Nacl/Kcl/Asb/C) | Brand | 124 | 124 | $18,485 |
| Dicyclomine Hcl | Generic | 45 | 0 | $1,897 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) | Brand | 41 | 41 | $3,264 |
| Balsalazide Disodium | Generic | 37 | 0 | $5,215 |
| Budesonide Dr (Budesonide) | Brand | 25 | 0 | $1,737 |
| Creon (Lipase/Protease/Amylase) | Brand | 25 | 0 | $78,702 |
| Peg-3350 And Electrolytes (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 24 | 24 | $644 |
Hospital affiliations
Frequently asked questions
What is Dr. Clark Antonson's medical specialty?
Dr. Clark Antonson practices Gastroenterology Physician in Lincoln, NE.
Where does Dr. Clark Antonson practice?
Dr. Clark Antonson practices at 4545 R St, Lincoln, NE 685033723. Office phone: 4024654545.
What is Dr. Clark Antonson's NPI?
Dr. Clark Antonson's National Provider Identifier (NPI) is 1831182757, issued by NPPES.
Does Dr. Clark Antonson accept Medicare assignment?
Yes. Dr. Clark Antonson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Clark Antonson commonly perform?
Top Medicare-reported procedures in 2023: Injection, vedolizumab, 1 mg (HCPCS J3380); Injection, infliximab, excludes biosimilar, 10 mg (HCPCS J1745); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.