Dr. Stephen E. Baum
- Gender: Male
- Experience: 37 years
- Graduated from: University Of Colorado School Of Medicine, Denver
- Graduation year: 1984
- Sole propriator: No
- NPI: 1083650485
Dr. Stephen E. Baum MD
Gastroenterologist
He is located at 1144 North 28th Street Suite C in Billings, MT 59101. Can help patients with the following: Gastric Bypass Surgery, Gastritis, Gastroesophageal Reflux Disease (GERD), Hot Flashes, Liver Disease, Urinary Tract Infection (UTI). His National Provider Identifier (NPI) number is 1083650485. Appointment can be made via the phone number (406) 238-6380. He is affiliated with 1 practices and 1 hospitals.
Conditions treated
Dr. Stephen E. Baum, being an gastroenterologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Stephen E. Baum.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Ascites
- Asthma
- Atherosclerosis
- Autoimmune Hepatitis
- Bad Breath
- Barrett's Esophagus
- Bladder Control
- Bleeding Varices
- Blood in Stool
- Botulism
- Cancer
- Carcinoid Tumor
- Celiac Disease
- Chest Pain
- Childhood Obesity
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Cirrhosis
- Clostridium Difficile Colitis
- Colitis
- Colonoscopy
- Common Cold
- Constipation
- Crohn's Disease
- Cystitis
- Diarrhea
- Diverticulosis
- Edema
- Eosinophilic Esophagitis
- Esophagitis
- Fatty Liver Disease
- Feeding and Swallowing
- Fever
- Food Allergies
- Gallbladder Pain
- Gastric Bypass Surgery
- Gastritis
- Gastroesophageal Reflux Disease (GERD)
- Gastroparesis
- General Care
- Headache
- Heart Disease
- Heartburn
- Helicobacter Pylori Infection
- Hemorrhoids
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Indigestion
- Inflammatory Bowel Disease (IBD)
- Influenza
- Inguinal Hernia
- Internal Bleeding
- Intussusception
- Irritable Bowel Syndrome (IBS)
- Lactose Intolerance
- Leaky Gut Syndrome
- Liver Disease
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Pancreas Divisum
- Pancreatic Cancer
- Pancreatic Cysts
- Pancreatitis
- Peptic Ulcer
- Portal Hypertension
- Prescription Refill
- Primary Biliary Cirrhosis (PBC)
- Primary Sclerosing Cholangitis (PSC)
- Stomach Cancer
- Swallowing Disorders
- Ulcerative Colitis
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. Stephen E. Baum
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Stephen E. Baum as in-network for the following 2026 plans.
Health plans
Blue Cross and Blue Shield of Montana
Network data as of Jun 7, 2026, as reported by the insurer.
Show all 10 plans from Blue Cross and Blue Shield of Montana
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Blue Preferred Bronze PPO℠ 201 (4 plan variants) | PPO · Expanded Bronze | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Bronze PPO℠ 202 (4 plan variants) | PPO · Expanded Bronze | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Bronze PPO℠ Standard (4 plan variants) | PPO · Expanded Bronze | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Gold PPO℠ 204 (4 plan variants) | PPO · Gold | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Gold PPO℠ 901 (4 plan variants) | PPO · Gold | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Gold PPO℠ Standard (4 plan variants) | PPO · Gold | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Security PPO℠ 200 (4 plan variants) | PPO · Catastrophic | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Silver PPO℠ 203 (4 plan variants) | PPO · Silver | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Silver PPO℠ 308 (4 plan variants) | PPO · Silver | Blue Preferred PPO | Accepting new patients |
| Blue Preferred Silver PPO℠ Standard (4 plan variants) | PPO · Silver | Blue Preferred PPO | Accepting new patients |
Mountain Health CO-OP
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 31 plans from Mountain Health CO-OP
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| PEAK PPO BRONZE | PPO · Expanded Bronze | Preferred | Accepting new patients |
| Peak PPO Bronze HDHP | PPO · Expanded Bronze | Preferred | Accepting new patients |
| PEAK PPO BRONZE HDHP | PPO · Expanded Bronze | Preferred | Accepting new patients |
| Peak PPO Bronze Standard | PPO · Expanded Bronze | Preferred | Accepting new patients |
| Peak PPO Catastrophic | PPO · Catastrophic | Preferred | Accepting new patients |
| Peak PPO Gold | PPO · Gold | Preferred | Accepting new patients |
| PEAK PPO GOLD | PPO · Gold | Preferred | Accepting new patients |
| PEAK PPO GOLD HDHP | PPO · Gold | Preferred | Accepting new patients |
| Peak PPO Gold Standard | PPO · Gold | Preferred | Accepting new patients |
| Peak PPO Silver | PPO · Silver | Preferred | Accepting new patients |
| PEAK PPO SILVER | PPO · Silver | Preferred | Accepting new patients |
| PEAK PPO SILVER HDHP | PPO · Silver | Preferred | Accepting new patients |
| Peak PPO Silver Standard | PPO · Silver | Preferred | Accepting new patients |
| Plus Bronze (2 plan variants) | PPO · Expanded Bronze | Tier Two | Accepting new patients |
| Plus Bronze HDHP | PPO · Expanded Bronze | Tier Two | Accepting new patients |
| Plus Bronze Standard | PPO · Expanded Bronze | Tier Two | Accepting new patients |
| Plus Gold (2 plan variants) | PPO · Gold | Tier Two | Accepting new patients |
| Plus Gold HDHP | PPO · Gold | Tier Two | Accepting new patients |
| Plus Gold Standard | PPO · Gold | Tier Two | Accepting new patients |
| Plus Silver | PPO · Silver | Tier Two | Accepting new patients |
| Plus Silver HDHP | PPO · Silver | Tier Two | Accepting new patients |
| Plus Silver Standard | PPO · Silver | Tier Two | Accepting new patients |
| ROCKY MOUNTAIN GOLD HDHP | PPO · Gold | Preferred | Accepting new patients |
| ROCKY MOUNTAIN BRONZE | PPO · Expanded Bronze | Preferred | Accepting new patients |
| ROCKY MOUNTAIN BRONZE HDHP | PPO · Expanded Bronze | Preferred | Accepting new patients |
| Rocky Mountain Bronze Standard | PPO · Expanded Bronze | Preferred | Accepting new patients |
| ROCKY MOUNTAIN GOLD | PPO · Gold | Preferred | Accepting new patients |
| Rocky Mountain Gold Standard | PPO · Gold | Preferred | Accepting new patients |
| ROCKY MOUNTAIN SILVER | PPO · Silver | Preferred | Accepting new patients |
| ROCKY MOUNTAIN SILVER HDHP | PPO · Silver | Preferred | Accepting new patients |
| Rocky Mountain Silver Standard | PPO · Silver | Preferred | Accepting new patients |
PacificSource Health Plans
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 8 plans from PacificSource Health Plans
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Core Bronze HSA 10600 | EPO · Bronze | Tier One | Accepting new patients |
| Core Bronze HSA 8300 | EPO · Expanded Bronze | Tier One | Accepting new patients |
| Core Gold 1500 | EPO · Gold | Tier One | Accepting new patients |
| Core Silver 3500 | EPO · Silver | Tier One | Accepting new patients |
| Core Silver 5000 | EPO · Silver | Tier One | Accepting new patients |
| Core Standard Expanded Bronze HSA | EPO · Expanded Bronze | Tier One | Accepting new patients |
| Core Standard Gold | EPO · Gold | Tier One | Accepting new patients |
| Core Standard Silver | EPO · Silver | Tier One | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Stephen E. Baum is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Stephen E. Baum is enrolled to bill Medicare as a Practitioner - Internal Medicine .
Bills through: Scl Health Medical Group - Billings Llc
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Boston Scientific | $104 |
| UCB | $45 |
| Pfizer | $27 |
Other
| Food and Beverage | $247 |
Studies
UNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated in 1984Additional Specialities
- Internist
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Questions & Answers
Does Dr. Stephen E. Baum have affiliation with practices?
Dr. Stephen E. Baum is affiliated with Billings Gastrointestinal Associates PLLP.
Does Dr. Stephen E. Baum accept patients with PacificSource Health Plans?
Yes, Dr. Stephen E. Baum is listed in-network for PacificSource Health Plans through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
What conditions does Dr. Stephen E. Baum treat?
Dr. Stephen E. Baum provides treatment for Gastric Bypass Surgery, Gastritis, Gastroesophageal Reflux Disease (GERD), Hot Flashes, Liver Disease, Urinary Tract Infection (UTI). For the full list see this list.
Where can you meet with Dr. Stephen E. Baum?
Dr. Stephen E. Baum's office is located at 1144 North 28th Street Suite C in Billings, MT 59101.
Has Dr. Stephen E. Baum affiliation with hospitals?
Dr. Stephen E. Baum is affiliated with ST VINCENT HEALTHCARE.