Dr. Ron D Ah Loy, MD



Gastroenterology   -  Hawaii,  Kamuela

 Overview

Dr. Ron D Ah Loy, MD works in Kamuela, Hawaii is a specialist in Gastroenterology, Infectious Disease Medicine, Internal Medicine and graduated Cedar Sinai Med Center in 1983. Dr. Loy is affiliated with Kona Community Hospital, North Hawaii Community Hospital and practicing for 45 years

 Specialties

  • Gastroenterology
  • Infectious Disease Medicine
  • Internal Medicine

 Conditions

• Acupuncture Meridian Therapy
• Aneurysmal Bone Cyst
• Blindness
• Chronic Pain Management
• Cirrhosis
• da Vinci® Prostate Surgery
• Diabetic Retinopathy
• Duodenitis
• Dystonia 7, Torsion
• Esophageal Achalasia and Cardiospasm
  ...
• Ethmoidectomy (Sinus Surgery)
• Exercise Management
• Female Pelvic Disorders
• Glaucoma - Ectopia Microspherophakia - Stiff Joints - Short Stature
• Guar Gum Allergy
• Herpes Simplex Virus Antenatal Infection
• Inflammatory Bowel Disease
• Islet Cell Adenoma
• Laparoscopic Salpingectomy
• Lens Disorders
• Marijuana Amotivational Syndrome
• Maxillary and Malar Fractures
• Minimally Invasive Resection of Mediastinal Tumor
• Neuropathic Diseases and Disorders
• Optic Ataxia
• Orbital Fracture
• Polycystic Ovarian Syndrome
• Pterygium
• Radical Retropubic Prostate Removal
• Radiesse® Injections
• Renal Artery Stenosis (RAS)
• Restylane® Injections
• Retinal Laser Photocoagulation
• Retinal Testing
• Scrambler Therapy (ST5)
• Screening Colonoscopy
• Septal Perforation Repair
• Shoulder Arthroscopy
• Throat Culture
• Throat Swab
• Thromboendarterectomy or Excision of Infected Graft
• Tonsillitis
• Vaginal Cancer
• Vulvar Cancer
 more details

 Procedures

• Abdominal Pain
• Anemia
• Barrett's Esophagus
• Benign Neoplasm of the Digestive System
• Biliary Atresia
• Cholecystitis and Gallstones
• Cirrhosis
• Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
• Colorectal Cancer
• Crohn's Disease (Regional Enteritis)
  ...
• Diaphragmatic and-or Hiatal Hernia
• Diverticulitis, Intestinal
• Diverticulosis, Intestinal
• Duodenal Ulcer
• Duodenitis
• Dysentery
• Dysphagia
• Endoscopy (Esophagus, Stomach, Small Intestine)
• ERCP (Endoscopic Retrograde Cholangiopancreatography)
• Esophageal Achalasia and Cardiospasm
• Esophageal Ulcer
• Esophageal Varices
• Esophagitis
• Gas-Bloat Syndrome
• Gastric Ulcer
• Gastritis
• Gastroesophageal Reflux Disease (GERD)
• Gastrointestinal Bleeding
• Gastroparesis
• Heartburn
• Hemochromatosis
• Hemorrhoids
• Hepatitis B - Immune Response
• Hepatitis C
• Ileus
• Indigestion
• Intestinal Obstruction
• Liver Biopsy
• Malnutrition
• Neoplasm of Gastrointestinal Tract
• Pancreatitis
• Pyloric Stenosis
• Small Intestine Cancer
• Stomach and Small Intestine Cancer
• Ulcerative Colitis
• Unexplained Weight Loss
• Vascular Insufficiency of Intestines
• Vomiting Disorders
 more details

 Board Certifications

  • Board Certified by the American Board of Internal Medicine

 Years Since Graduation

  • 45

 State License

  • Hawaii

 Education & Training

Fellowship Hospitals

Cedar Sinai Med Center

Los Angeles, CA, USA

Year completed: 1983

Internship Hospital

Good Samaritan Regional Med Center

Phoenix, AZ, USA

Year completed: 1979

Residency Hospital

Lds Hospital

Salt Lake City, UT, USA

Year completed: 1981

Medical School

University Of Hawaii John A Burns School Of Medicine

Honolulu, HI, United States

Graduated: 1978

 Awards

1   HMA

 Dr. Loy Reviews

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 Office Locations


Primary location

 Ahloy and Kimball
64 Kanehoa Place
Hawaii (HI)
Kamuela
96743
 Phone:(808) 887-0600
Additional data:
Free Standing Surgery Center?    No
Office Volume:    35 patients per day
Performs Procedures On Site?    Yes

Accepting New Patients

  • No
* Please verify this information when scheduling an appointment.

 Map & Directions



Ahloy and Kimball, 64 Kanehoa Place, Kamuela, Hawaii (HI), 96743




 Insurances Accepted (check insurance plans)

  • Aetna
  • Blue Card PPO
  • Blue Cross Blue Shield
  • Choice Plus POS
  • Choice Plus POS II
  • Cigna
  • Cigna PPO
  • Commercial Insurance Company
  • Group Health Cooperative
  • Hawaii Medical Service Association (HMSA)
  • HealthSmart
  • Medicare
  • Medicare MCR
  • Navigate POS
  • Open Access Plus
  • Options PPO
  • Preferred Provider/Comp Med
  • United Healthcare
  • UnitedHealthCare

* Please verify this information when scheduling an appointment.

 Blog Posts

Blog Posts for Dr. Ron D Ah Loy, MD are not present.

 Patients Questions

Patients questions for Dr. Ron D Ah Loy, MD are not present.

 Affiliated Hospitals


Kona Community Hospital photo


Kona Community Hospital

79 1019 Haukapila Street Hawaii HI, Kealakekua, 96750

Kona Community Hospital is a State owned hospital located in Kealakekua, HI. Procedures/Diagnosis costs are at the state average in 1 of 1 procedures. Length of Stay is at the state average in 1 of 1 procedures.



North Hawaii Community Hospital photo


North Hawaii Community Hospital

67 1125 Mamalahoa Highway Hawaii HI, Kamuela, 96743

North Hawaii Community Hospital is a hospital located in Kamuela, HI.



  •  Latest reviews for Gastroenterology specialists

  • Dr. C. is a pleasant, professional caring and fun doctor. Answered all my questions on a keep it simple level and explained everything. He took his time. I will refer them when needed. What a great group!
    07 February 2024
    (6)
  • He is the best if you need help with panic attacks. He fixed up my medication and I feel better.
    31 January 2024
    (40)
  • Dr. Jungblut and staff are all professional, fun, conscientious. Been going here for a long time. My children and grandchildren now see Dr. Jungblut too.
    24 January 2024
    (7)
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