Doctor profile · Federal record
Dr. Stephen Baum, MD
Gastroenterology Physician (CMS: Internal Medicine) · Billings, MT
- NPI 1083650485
- Accepts Medicare
- 42 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1144 N 28Th St, Suite C
Billings, MT 591010110
(406) 238-6380
fax (406) 238-6399
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- April 11, 2011
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Montana #7412
- Medicaid
- MT #0025806
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083650485. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
599
Distinct HCPCS
10
Medicare allowed
$104,889
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 172 | 172 | $248 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 76 | 76 | $94 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 73 | 73 | $136 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 57 | 57 | $184 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 48 | 48 | $95 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 40 | 40 | $130 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 39 | 39 | $183 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 24 | 24 | $176 | |
43264 |
Removal of stone or debris from bile or pancreatic duct using a flexible endoscope | 23 | 23 | $221 | |
43262 |
Incision of pancreatic outlet using a flexible endoscope | 21 | 21 | $65 |
In context: peer comparison
Among 2 peers in Billings Gastroenterology Physician, average services per provider: 53. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$254
Transactions
6
Manufacturers
6
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 1 | $89.00 | |
| Steris Corporation | 1 | $76.20 | |
| Sandoz INC. | 1 | $34.54 | |
| Ipsen Biopharmaceuticals, INC | 1 | $19.95 | |
| Olympus America INC. | 1 | $17.88 | |
| Regeneron Healthcare Solutions, INC. | 1 | $16.86 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
21
Patients
21
Total drug cost
$382
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 21 | 21 | $382 |
Hospital affiliations
Frequently asked questions
What is Dr. Stephen Baum's medical specialty?
Dr. Stephen Baum practices Gastroenterology Physician in Billings, MT.
Where does Dr. Stephen Baum practice?
Dr. Stephen Baum practices at 1144 N 28Th St, Billings, MT 591010110. Office phone: 4062386380.
What is Dr. Stephen Baum's NPI?
Dr. Stephen Baum's National Provider Identifier (NPI) is 1083650485, issued by NPPES.
Does Dr. Stephen Baum accept Medicare assignment?
Yes. Dr. Stephen Baum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Baum commonly perform?
Top Medicare-reported procedures in 2023: 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); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.