William S. Loui, MD
Hematology & Oncology Physician · Oncologist in Honolulu, HI
Provider details
- Specialty
- Hematology & Oncology Physician
- Credentials
- MD
- NPI number
- 1346217718
Checked against the CMS National Provider Identifier registry on October 2, 2026.
Medicare information
- Medical school
- University of Hawaii John A. Burns School of Medicine, graduated 1989
- Group practice
- Castle Medical Center
- Hospital affiliations
- Adventist Health Castle, Kailua, HI · Medicare rating 4 out of 5 stars
- The Queens Medical Center, Honolulu, HI · Medicare rating 3 out of 5 stars
- Kuakini Medical Center, Honolulu, HI · Medicare rating 4 out of 5 stars
- Kahuku Medical Center, Kahuku, HI
- Straub Clinic and Hospital, Honolulu, HI · Medicare rating 4 out of 5 stars
- Medicare
- Accepts Medicare assignment (the Medicare-approved amount as full payment)
- Telehealth
- Offers telehealth visits
From Medicare’s public Care Compare data (Doctors and Clinicians), checked October 2, 2026. Ratings are Medicare’s, not Know Cancer’s. Medicare Care Compare
About
Specialties
- Hematology
- Oncology
- Internal Medicine
Insurance
- Aetna
- Blue Cross and Blue Shield - BlueCard PPO
- Blue Cross and Blue Shield PPO
- Cigna - Open Access
- Cigna PPO
- Humana
- Humana - Choice Care PPO
- PacifiCare
- United HealthCare
- United HealthCare - Choice Plus POS
- United HealthCare - Options PPO
- WellCare Health Plans
- WellPoint
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- Prosthetics, Wigs & Accessories in Honolulu (14)
- Wellness and Nutrition in Honolulu (12)
- Cancer Treatment Centers in Honolulu (11)
- Hospice in Honolulu (6)
- Home Health Care in Honolulu (4)
- Cancer Research Centers in Honolulu (1)
Listings are provided for information only and may be out of date. Know Cancer does not endorse any provider. Please confirm details directly with the provider.