Dr. Joseph K. Koo
- Gender: Male
- Experience: 37 years
- Graduated from: University Of Hawaii John A. Burns School Of Medicine
- Graduation year: 1984
- Sole propriator: Yes
- NPI: 1457350985
Dr. Joseph K. Koo M.D.
Infectious Disease Specialist
He is located at 321 North Kuakini Street, Suite 715 Kuakini Medical Plaza in Honolulu, HI 96817. Can help patients with the following: Anthrax, Candida Auris, Endocarditis, General Care, High Blood Pressure, Tonsillitis. His National Provider Identifier (NPI) number is 1457350985. Appointment can be made via the phone number (808) 523-6461. He is affiliated with 2 practices and 2 hospitals.
Conditions treated
Dr. Joseph K. Koo, being an infectious disease specialist, 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. Joseph K. Koo.
- Abdominal Pain
- Acquired Immunodeficiency Syndrome (AIDS)
- Acute Pain
- Anemia
- Anthrax
- Arthritis
- Asthma
- Atherosclerosis
- Bacterial Vaginosis
- Bladder Control
- Boils
- Botulism
- Bronchitis
- Brucellosis
- Cancer
- Candida Auris
- Cat Scratch Disease
- Cellulitis
- Chagas Disease
- Chest Pain
- Chickenpox
- Chlamydia
- Cholecystitis
- Cholera
- Chronic Obstructive Pulmonary Disease (COPD)
- Chronic Rhinitis
- Common Cold
- Constipation
- Coronavirus
- Cryptococcosis
- Cystitis
- Cytomegalovirus (CMV)
- Dengue Fever
- Diarrhea
- Diphtheria
- E. Coli Infection
- Eastern Equine Encephalitis (EEE)
- Ebola Hemorrhagic Fever
- Edema
- Encephalitis
- Endocarditis
- Epididymitis
- Fever
- Fifth Disease
- Food Poisoning
- Gangrene
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Genital Herpes
- Giardiasis
- Gonorrhea
- Guinea Worm Disease
- Hand, Foot, and Mouth Disease (HFMD)
- Headache
- Heart Disease
- Helicobacter Pylori Infection
- Hepatitis A (HAV)
- Hepatitis B (HBV)
- Hepatitis C (HCV)
- Herpes Simplex Virus
- Hiatal Hernia
- High Blood Pressure
- Histoplasmosis
- Hot Flashes
- Human Immunodeficiency Virus (HIV)
- Human Papillomavirus (HPV)
- Hyperlipidemia
- Hyponatremia
- Impetigo
- Infectious Diseases
- Infectious Mononucleosis
- Influenza
- Inguinal Hernia
- Leishmaniasis
- Leprosy
- Leptospirosis
- Listeriosis
- Lyme Disease
- Mad Cow Disease
- Malaria
- Measles
- Meningitis
- Migraine
- Mumps
- Nail Fungus
- Nausea and Vomiting
- Necrotizing Fasciitis (NF)
- Neutropenia
- Obesity
- Osteomyelitis
- Osteoporosis
- Peptic Ulcer
- Pinworm Infection
- Pityriasis Rosea
- Pneumonia
- Polio
- Prescription Refill
- Rabies
- Rocky Mountain Spotted Fever (RMSF)
- Roseola
- Rubella
- Salmonella Food Poisoning
- Scabies
- Scarlet Fever
- Schistosomiasis
- Sepsis
- Severe Acute Respiratory Syndrome (SARS)
- Sexually Transmitted Diseases (STDs)
- Smallpox
- Sore Throat
- Staph Infection
- Stomach Flu
- Strep Throat
- Swine Flu
- Syphilis
- Tetanus
- Thrush
- Tonsillitis
- Toxic Shock Syndrome (TSS)
- Toxoplasmosis
- Trichinosis
- Tuberculosis (TB)
- Typhoid Fever
- Upper Respiratory Infection (URI)
- Urethritis
- Urinary Tract Infection (UTI)
- Valley Fever
- Viral Hemorrhagic Fever (VHF)
- West Nile Virus
- Whooping Cough
- Yaws
- Yeast Infection
- Yellow Fever
- Zika Virus
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Joseph K. Koo 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 | Not accepting new patients |
| HMSA Bronze PPO II HSA | PPO · Expanded Bronze | Preferred Provider Plan | Not accepting new patients |
| HMSA Catastrophic Plan | PPO · Catastrophic | Preferred Provider Plan | Not accepting new patients |
| HMSA Gold PPO I | PPO · Gold | Preferred Provider Plan | Not accepting new patients |
| HMSA Gold PPO II | PPO · Gold | Preferred Provider Plan | Not accepting new patients |
| HMSA Platinum PPO | PPO · Platinum | Preferred Provider Plan | Not accepting new patients |
| HMSA Silver PPO | PPO · Silver | Preferred Provider Plan | Not 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. Joseph K. Koo 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. Joseph K. Koo is enrolled to bill Medicare as a Practitioner - Infectious Disease .
Medicare practice location(s) (city/state/zip only, as reported to Medicare):
- HONOLULU, HI, 96817-2362
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.
Studies
UNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE
Graduated in 1984Additional Specialities
- Internist
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Questions & Answers
Does Dr. Joseph K. Koo accept insurance?
Dr. Joseph K. Koo is listed in-network for 7 ACA Marketplace (Obamacare/HealthCare.gov) plans from HMSA. See the Marketplace plans section for details.
What conditions does Dr. Joseph K. Koo treat?
Dr. Joseph K. Koo provides treatment for Anthrax, Candida Auris, Endocarditis, General Care, High Blood Pressure, Tonsillitis. For the full list see this list.
Does Dr. Joseph K. Koo have affiliation with practices?
Dr. Joseph K. Koo is affiliated with Skinny Dip Skin Clinic. For the full list of practices see this list.
Where can you meet with Dr. Joseph K. Koo?
Dr. Joseph K. Koo's office is located at 321 North Kuakini Street, Suite 715 Kuakini Medical Plaza in Honolulu, HI 96817.
Has Dr. Joseph K. Koo affiliation with hospitals?
Dr. Joseph K. Koo is affiliated with THE QUEENS MEDICAL CENTER. For the full list of hospitals see this list.