Dr. Aaron J. Small
- Gender: Male
- Experience: 13 years
- Graduated from: Mayo Medical School
- Graduation year: 2008
- Sole propriator: Yes
- NPI: 1407015399
Dr. Aaron J. Small M.D.
Gastroenterologist
He is located at 98-1079 Moanalua Road in Aiea, HI 96701. Can help patients with the following: Autoimmune Hepatitis, Celiac Disease, Chronic Obstructive Pulmonary Disease (COPD), Colonoscopy, Heart Disease, Urinary Tract Infection (UTI). His National Provider Identifier (NPI) number is 1407015399. Appointment can be made via the phone number (808) 486-6000. He is affiliated with 1 practices and 2 hospitals.
Conditions treated
Dr. Aaron Justin Small, 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. Aaron J. Small.
- 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. Aaron J. Small
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Aaron J. Small 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 |
Kaiser Permanente
Network data as of Aug 5, 2025, as reported by the insurer.
Show all 10 plans from Kaiser Permanente
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| KP HI Bronze 6000/65 Plus CAM | HMO · Expanded Bronze | Preferred | Accepting new patients |
| KP HI Gold 0/40 Plus CAM | HMO · Gold | Preferred | Accepting new patients |
| KP HI Gold 1000 Ded/250 Rx Ded | HMO · Gold | Preferred | Accepting new patients |
| KP HI Platinum 0/5 Plus CAM | HMO · Platinum | Preferred | Accepting new patients |
| KP HI Silver 3000 Ded/600 Rx Ded Plus CAM | HMO · Silver | Preferred | Accepting new patients |
| KP HI Silver 4000 Ded/600 Rx Ded | HMO · Silver | Preferred | Accepting new patients |
| KP HI Standard Bronze 7500/50 | HMO · Expanded Bronze | Preferred | Accepting new patients |
| KP HI Standard Gold 2000/30 | HMO · Gold | Preferred | Accepting new patients |
| KP HI Standard Platinum 0/10 | HMO · Platinum | Preferred | Accepting new patients |
| KP HI Standard Silver 6000/40 | HMO · Silver | Preferred | 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. Aaron J. Small 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. Aaron J. Small is enrolled to bill Medicare as a Practitioner - Gastroenterology .
Bills through: Hawaii Permanente Medical Group 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 | $11022 |
| Conmed | $334 |
| Covidien | $206 |
Other
| Promotional Speaking or Service | $9000 |
| Food and Beverage | $2321 |
| Travel and Lodging | $790 |
Studies
MAYO MEDICAL SCHOOL
Graduated in 2008Additional Specialities
- Internist
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Questions & Answers
What conditions does Dr. Aaron Justin Small treat?
Dr. Aaron Justin Small provides treatment for Autoimmune Hepatitis, Celiac Disease, Chronic Obstructive Pulmonary Disease (COPD), Colonoscopy, Heart Disease, Urinary Tract Infection (UTI). For the full list see this list.
Does Dr. Aaron Justin Small have affiliation with practices?
Dr. Aaron Justin Small is affiliated with Hawaii Gastroenterology Specialists.
Does Dr. Aaron Justin Small accept patients with HMSA?
Yes, Dr. Aaron Justin Small is listed in-network for HMSA through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Has Dr. Aaron Justin Small affiliation with hospitals?
Dr. Aaron Justin Small is affiliated with PALI MOMI MEDICAL CENTER. For the full list of hospitals see this list.
Where can you meet with Dr. Aaron Justin Small?
Dr. Aaron Justin Small's office is located at 98-1079 Moanalua Road in Aiea, HI 96701.