Doctor profile · Federal record
Dr. Christopher Knudsen, D.O.
Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Springfield, MO
- NPI 1124258777
- Accepts Medicare
- 17 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2115 S Fremont Ave, Suite 3300
Springfield, MO 658042239
(417) 820-5200
fax (417) 820-5220 - Mailing address
-
Po Box 505164
Saint Louis, MO 631505164
Credentials & registration
- NPI registered
- July 2009 — 17 yrs on file
- Profile last updated
- November 2, 2015
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Missouri #2015021892 · Alabama #DO.1164
- Medicaid
- MO #1124258777
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124258777. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
850
Distinct HCPCS
10
Medicare allowed
$100,834
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
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 | 125 | 122 | $5 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 123 | 122 | $240 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 106 | 103 | $104 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 81 | 78 | $167 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 70 | 69 | $104 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 46 | 41 | $84 | |
43249 |
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | 39 | 33 | $131 | |
91010 |
Study of esophagus to assess movement | 31 | 31 | $60 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 29 | 29 | $174 | |
91037 |
Monitoring and recording of esophageal function through nasal tube with electrode | 26 | 26 | $45 |
In context: peer comparison
Among 8 peers in this city , average services per provider: 46. This provider delivers 18× the peer median.Open Payments
Industry payments received
All-time total
$25
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| CapsoVision, Inc. | 1 | $24.78 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,587
Patients
703
Total drug cost
$376,134
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 368 | 362 | $7,957 |
| Omeprazole | Generic | 336 | 96 | $4,027 |
| Pantoprazole Sodium | Generic | 186 | 46 | $2,892 |
| Dicyclomine Hcl | Generic | 141 | 44 | $3,464 |
| Linzess (Linaclotide) | Brand | 73 | 20 | $59,628 |
| Famotidine | Generic | 64 | 18 | $528 |
| Xifaxan (Rifaximin) | Brand | 58 | 18 | $186,822 |
| Colestipol Hcl | Generic | 56 | 15 | $3,619 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 49 | 16 | $1,169 |
| Ondansetron Hcl | Generic | 46 | 11 | $826 |
Frequently asked questions
What is Dr. Christopher Knudsen's medical specialty?
Dr. Christopher Knudsen practices Gastroenterology Physician in Springfield, MO.
Where does Dr. Christopher Knudsen practice?
Dr. Christopher Knudsen practices at 2115 S Fremont Ave, Springfield, MO 658042239. Office phone: 4178205200.
What is Dr. Christopher Knudsen's NPI?
Dr. Christopher Knudsen's National Provider Identifier (NPI) is 1124258777, issued by NPPES.
Does Dr. Christopher Knudsen accept Medicare assignment?
Yes. Dr. Christopher Knudsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christopher Knudsen commonly perform?
Top Medicare-reported procedures in 2023: 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 (HCPCS G0500); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.