Dr. Stephen K. Buto
- Gender: Male
- Experience: 36 years
- Graduated from: University Of Hawaii John A. Burns School Of Medicine
- Graduation year: 1985
- Sole propriator: Yes
- NPI: 1962486753
Dr. Stephen K. Buto MD
Gastroenterologist
He is located at 1329 Lusitana Street Ste 105 in Honolulu, HI 96813. Can help patients with the following: Arthritis, Autoimmune Hepatitis, Chest Pain, Helicobacter Pylori Infection, Nausea and Vomiting, Stomach Cancer. His National Provider Identifier (NPI) number is 1962486753. Appointment can be made via the phone number (808) 524-7676. He is affiliated with 1 practices and 2 hospitals.
Conditions treated
Dr. Stephen K. Buto, 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 K. Buto.
- 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 K. Buto
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Stephen K. Buto as in-network for the following 2026 plans.
Health plans
HMSA
Network data as of Sep 14, 2026, as reported by the insurer.
Show all 7 plans from HMSA
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| HMSA Bronze PPO I | PPO · Expanded Bronze | Preferred Provider Plan | Accepting new patients |
| HMSA Bronze PPO II HSA | PPO · Expanded Bronze | Preferred Provider Plan | Accepting new patients |
| HMSA Catastrophic Plan | PPO · Catastrophic | Preferred Provider Plan | Accepting new patients |
| HMSA Gold PPO I | PPO · Gold | Preferred Provider Plan | Accepting new patients |
| HMSA Gold PPO II | PPO · Gold | Preferred Provider Plan | Accepting new patients |
| HMSA Platinum PPO | PPO · Platinum | Preferred Provider Plan | Accepting new patients |
| HMSA Silver PPO | PPO · Silver | Preferred Provider Plan | 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 K. Buto 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 K. Buto is enrolled to bill Medicare as a Practitioner - Gastroenterology (also registered under: Practitioner - Internal Medicine) .
Bills through: Stephen K Buto Md Inc
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 | $1163 |
| Gilead Sciences | $490 |
| Salix Pharmaceuticals | $469 |
Other
| Food and Beverage | $2932 |
| Travel and Lodging | $984 |
Studies
UNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE
Graduated in 1985Additional Specialities
- Internist
Looking for more Gastroenterologists?
Out of the 17 gastroenterologists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Male
- Address: Suite 102 1329 Lusitana Street Honolulu, 96813, HI
- Gender: Female
- Address: 888 South King Street Honolulu, 96813, HI
- Gender: Male
- Address: Suite 801 1380 Lusitana Street Honolulu, 96813, HI
- Gender: Male
- Address: Suite 501 550 South Beretania Street Honolulu, 96813, HI
- Gender: Male
- Address: 2828 Paa Street Honolulu, 96819, HI
- Gender: Male
- Address: 1301 Punchbowl Street Honolulu, 96813, HI
- Gender: Male
- Address: #409 Queens P O Box I 1380 Lusitana Street Honolulu, 96813, HI
- Gender: Male
- Address: 888 South King Street Honolulu, 96813, HI
- Gender: Male
- Address: Suite 605 1329 Lusitana Street Honolulu, 96813, HI
Questions & Answers
Does Dr. Stephen K. Buto accept patients with HMSA?
Yes, Dr. Stephen K. Buto is listed in-network for HMSA through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Has Dr. Stephen K. Buto affiliation with hospitals?
Dr. Stephen K. Buto is affiliated with THE QUEENS MEDICAL CENTER. For the full list of hospitals see this list.
Where can you meet with Dr. Stephen K. Buto?
Dr. Stephen K. Buto's office is located at 1329 Lusitana Street Ste 105 in Honolulu, HI 96813.
What conditions does Dr. Stephen K. Buto treat?
Dr. Stephen K. Buto provides treatment for Arthritis, Autoimmune Hepatitis, Chest Pain, Helicobacter Pylori Infection, Nausea and Vomiting, Stomach Cancer. For the full list see this list.
Does Dr. Stephen K. Buto have affiliation with practices?
Dr. Stephen K. Buto is affiliated with Stephen K Buto MD.