Doctor profile · Federal record
Dr. Jeff Willis, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Missoula, MT
- NPI 1356385991
- Accepts Medicare
- 36 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1930 W Broadway St Ste A
Missoula, MT 598081960
(406) 541-6844
fax (406) 541-6843
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- October 7, 2024
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Montana #56022 · Virginia #0101059226
- Medicaid (2)
- NC #8905530 · VA #5825041
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1356385991. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
844
Distinct HCPCS
10
Medicare allowed
$112,629
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45380 |
Biopsy of large bowel using a flexible endoscope | 178 | 178 | $107 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 156 | 154 | $248 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 138 | 128 | $111 | |
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 72 | 30 | $37 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 40 | 36 | $129 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 39 | 35 | $91 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 37 | 35 | $106 | |
45381 |
Injection beneath lining of large bowel using a flexible endoscope | 30 | 29 | $22 | |
43264 |
Removal of stone or debris from bile or pancreatic duct using a flexible endoscope | 29 | 24 | $185 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 28 | 28 | $181 |
In context: peer comparison
Among 3 peers in Missoula Gastroenterology Physician, average services per provider: 65. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$31
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 2 | $31.21 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
758
Patients
455
Total drug cost
$87,383
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 321 | 311 | $9,176 |
| Omeprazole | Generic | 117 | 46 | $1,432 |
| Pantoprazole Sodium | Generic | 101 | 32 | $1,153 |
| Famotidine | Generic | 49 | 12 | $465 |
| Linzess (Linaclotide) | Brand | 32 | 0 | $20,696 |
| Esomeprazole Magnesium | Generic | 17 | 0 | $796 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 17 | 16 | $392 |
| Azathioprine | Generic | 14 | 0 | $1,619 |
| Lubiprostone | Generic | 14 | 0 | $2,211 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 14 | 14 | $2,396 |
Frequently asked questions
What is Dr. Jeff Willis's medical specialty?
Dr. Jeff Willis practices Gastroenterology Physician in Missoula, MT.
Where does Dr. Jeff Willis practice?
Dr. Jeff Willis practices at 1930 W Broadway St Ste A, Missoula, MT 598081960. Office phone: 4065416844.
What is Dr. Jeff Willis's NPI?
Dr. Jeff Willis's National Provider Identifier (NPI) is 1356385991, issued by NPPES.
Does Dr. Jeff Willis accept Medicare assignment?
Yes. Dr. Jeff Willis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jeff Willis commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); 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.