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Dr. John Koo, MD
Internal Medicine* Age 57
Dr. John Koo, MD
Map Pin Small Kailua, HI
Dr. John Koo, MD is an Internist in Kailua, HI.
Dr. John Koo, MD

Dr. John Koo, MD

Internal Medicine* Age 57
Kailua, HI
Accepting new patients
Dr. John Koo, MD is an Internist in Kailua, HI.
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About Dr. John Koo, MD

Dr. John Koo, MD is an Internist in Kailua, HI. Dr. Koo currently practices at Adventist Health Castle and is affiliated with Adventist Health Castle. Dr. Koo's office accepts new patients. Dr. Koo is board certified in Internal Medicine.

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These providers are on the medical staff of MDVIP
These providers are on the medical staff of MDVIP.
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Experience Check

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Arterial Blood Gas Test (ABG)
Dehydration
Electrocardiogram (EKG)
Arterial Blood Gas Test (ABG)
Dehydration
Electrocardiogram (EKG)
Arterial Blood Gas Test (ABG)
Dehydration
Electrocardiogram (EKG)
Urinary Tract Infection (UTI)
All Headaches (incl. Migraine)
Rhabdomyolysis
Cachexia
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Tobacco Use Disorder
Fever
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Advance Directive End of Life Planning
Nausea
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Immunization Administration
Mild Asthma
Joint Pain
Constipation
Shortness of Breath
Fecal Occult Blood Test for Colorectal Cancer
Acute Lower Respiratory Infection
Abdominal Pain
Acidosis
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Acute Bronchitis
Acute Coronary Syndrome
Acute Deep Vein Thrombosis (DVT)
Acute Glomerulonephritis
Acute Kidney Failure
Acute Kidney Infection
Acute Postoperative Pain
Acute Sinusitis
Acute Upper Respiratory Infection
Acute Venous Embolism Thrombosis
Adrenal Gland Diseases
Adult Failure to Thrive
Alcohol Withdrawal
Alkalosis
Allergic Conjunctivitis
Allergic Rhinitis
Anal or Rectal Pain
Anal Prolapse
Anemia
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Angina
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Animal Allergies
Anxiety
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Aortic Aneurysm
Aortic Dissection
Aortic Ectasia
Aortic Stenosis
Aortic Valve Disease
Aortic Valve Regurgitation
Arrhythmias
Arthritis
Arthritis of the Elbow
Asphyxia and Hypoxemia
Asthma
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Ataxia
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Atherosclerosis
Atrial Fibrillation
Atrial Flutter
Atrial Septal Defect
Autoimmune Thyroid Diseases
Back Pain
Bacterial Sepsis
Balanoposthitis
Bedsores
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Bell's Palsy
Benign Chronic Pain Syndrome
Biliary Atresia
Bird Flu
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Bladder Atony
Bladder Infection
Bleeding Disorders
Blood in Urine (Hematuria)
Broken Neck
Bronchiectasis
Bronchitis
Bruise of Face, Scalp, or Neck
Bursitis
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Calcium Metabolism Disorders
Cardiomyopathy
Cardiomyopathy, Dilated
Carotid Artery Disease
Cellulitis
Cerebral Artery Thrombosis
Cerebrovascular Disease
Chest Pain
Chest Wall Pain Syndrome
Cholecystitis and Gallstones
Chronic Deep Vein Thrombosis (DVT)
Chronic Neck Pain
Chronic Pain
Chronic Pulmonary Heart Diseases (incl. Pulmonary Hypertension)
Chronic Sinusitis
Clavicle Fracture
Coccyx or Sacrum Fracture
Collapsed Lung (Pneumothorax)
Complex Regional Pain Syndrome (CRPS)
Congestive Heart Failure
COPD (Chronic Obstructive Pulmonary Disease)
Coronary Artery Disease (CAD)
Cough
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Cryptococcosis
Cushing's Syndrome
Deep Vein Thrombosis (DVT)
Dermatitis Due to Drugs
Dermatitis Due to Substances Taken Internally
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Ketoacidosis
Diabetic Polyneuropathy
Diarrhea
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Difficulty With Walking
Dizziness
Drooping Eyelids (Ptosis)
Duodenal Ulcer
Duodenitis
Dysentery
Dyslipidemia
Dysphagia
Eczema and Contact Dermatitis
Embolism
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Emphysema
Endocarditis
Enlarged Prostate (BPH)
Enteritis
Eosinophilia
Epilepsy
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Esophageal Ulcer
Esophageal Varices
Esophagitis
Essential Tremor
Fibromyalgia
Food Allergy
Foot Infection
Gait Abnormality
Gallstones
Gastric Ulcer
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastrointestinal Bleeding
Gastrojejunal Ulcer
Gastroparesis
Gastroptosis
Genu Valgum
Goiter
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Gout
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Head or Neck Lump or Swelling
Headache
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Heart Attack (Acute Myocardial Infarction)
Heart Disease
Heart Palpitations
Hemorrhoids
Hepatitis A
Hepatitis C
Hernia
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Herpes Zoster Without Complication
Hiatal Hernia
Hidradenitis Suppurativa
Hip Sprain
Humerus Fracture
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hypersensitivity Pneumonitis
Hypertension
Hypertensive Chronic Kidney Disease
Hypertensive Heart and Chronic Kidney Disease
Hypertensive Heart Disease
Hyperthyroidism
Hypoglycemia
Hypokalemia
Hyposmolality and Hyponatremia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Hypoxemia
Ileus
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Influenza (Flu)
Ingrown Nail
Insomnia
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Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Obstruction
Intracerebral Hemorrhage
Irritable Bowel Syndrome
Ischemic Colitis
Itchy Skin
Jock Itch
Kidney Infection
Leg and Foot Ulcers
Leukocytopenia
Limb Pain
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Liver Damage from Alcohol
Long COVID Disorder
Low Back Pain
Magnesium Metabolism Disorders
Malaise and Fatigue
Malnutrition
Mastodynia
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Mineral Metabolism Disorders
Mitral Valve Prolapse
Mitral Valve Regurgitation
Mitral Valve Stenosis
Muscle Cramping
Muscle Spasm
Muscle Weakness
Mycobacterial Lung Infection
Nail and Nail Bed Infection
Nail Infection
Nephritis and Nephropathy
Nephrotic Syndrome
Nerve Root Injury and Plexus Disorders (incl. Pinched Nerve)
Neurogenic Bladder
Non-Traumatic Brain Injury
Noninfectious Gastroenteritis and Colitis
Nosebleed
Obesity
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Onychomycosis
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Hand
Osteoarthritis of Hand or Wrist
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Osteopenia
Osteoporosis
Overactive Bladder
Overweight
Pancreatitis
Partial Lung Collapse
Patellofemoral Pain Syndrome (PFPS)
Pelvic Abscess
Pelvic Fracture
Peptic Ulcer
Pericardial Disease
Pericarditis
Peripheral Nerve Disorders
Peripheral Vascular Disease (PAD, PVD)
Pharyngitis
Phimosis
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Phosphorus Metabolism Disorders
Pinkeye (Conjunctivitis)
Pneumonia
Polymyalgia Rheumatica (PMR)
Polyneuropathy
Polyneuropathy Due to Alcohol and Drugs
Primary Biliary Cholangitis
Primary Pulmonary Hypertension
Pulmonary Edema
Pulmonary Embolism
Pulmonary Hypertension
Pulmonary Valve Disease
Purpura
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Radiculopathy
Rash
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Reflex Sympathetic Dystrophy
Reflux Esophagitis
Renal Artery Arteriosclerotic Disease
Respiratory Failure
Restless Leg Syndrome
Rib Fracture
Ringworm
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Sarcoidosis
Sciatica
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Second Degree Heart Block
Secondary Hypertension
Seizure Disorders
Sepsis
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Shingles
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Sick Sinus Syndrome
Sickle Cell Disease
Sinus Bradycardia
Sinus Tachycardia
Sinusitis
Sleep Apnea
Spinal Cord Injury
Sprains and Strains (incl. Muscle Tear)
Stroke
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Subdural Hemorrhage
Supraventricular Tachycardia
Swine Flu
Third Degree Heart Block
Thrush
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Thyroiditis
Thyrotoxicosis Factitia
Tinnitus
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Transient Ischemic Attack (TIA)
Tricuspid Valve Disease
Type 2 Heart Block - Mobitz
Unstable Angina
Urinary Incontinence
Urinary Stones
Venous Embolism and Thrombosis
Venous Insufficiency
Ventricular Fibrillation
Ventricular Tachycardia (VT)
Vertigo
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Viral Enteritis
Viral Hepatitis
Vitamin B Deficiency
Vitamin B12 Deficiency
Vitamin D Deficiency
Vocal Cord Nodule
Vocal Cord Paralysis
Wheezing
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Yeast Infections

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Curative EPO
    Curative PPO
    Curative PPO Plus
  • First Health (Coventry Health Care) PPO
  • Choice Plus POS
    Options PPO
    Medica Choice
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Where Dr. John Koo, MD Sees Patients

  1. 1 Adventist Health Castle
    640 Ulukahiki St, Kailua, HI 96734
    Icon Directions Right Arrow Directions Phone Icon (808) 263-5454

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Meet Dr. John Koo, MD

Specialties*
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Koo communicate via email?
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Does Dr. Koo offer telehealth services or virtual visits?
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Does Dr. Koo offer an online patient portal?
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No
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Does Dr. Koo have free onsite parking?
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Does Dr. Koo offer weekend visits?
1 user said yes.
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Does Dr. Koo offer evening visits?
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No
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Does Dr. Koo specialize in working with children or adolescents?
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Does Dr. Koo specialize in working with seniors?
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Does Dr. Koo specialize in couples therapy?
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Does Dr. Koo specialize in working with LGBTQ+ community?
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Does Dr. Koo accept insurance?
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FAQs About Dr. Koo's Practice

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. John Koo, MD. To arrange an appointment, call the number on Dr. Koo's profile.

Dr. John Koo, MD is affiliated with Adventist Health Castle.

Yes, Dr. John Koo, MD holds board certification in Internal Medicine.
Training & Medical Education
Board Certifications
  • Internal Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Hospitals Where Dr. John Koo, MD Practices

  • Adventist Health Castle

    640 Ulukahiki St, Kailua, HI

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