Providers
85
Locations
4
Specialties
12
Insurance Plans
25
About Castle Medical Center
Background and practice information
Castle Medical Center is a established group medical practice based in Kailua, HI, with 85 affiliated healthcare providers practicing across 4 locations.
The practice brings together providers across multiple specialties, including internal medicine, nurse practitioner, family practice, and general surgery. Its providers are in-network with 25 insurance plans, though coverage varies by individual provider and should be confirmed before scheduling.
Across its providers, the practice has a solid average Merit-based Incentive Payment System (MIPS) score of 72.7 out of 100, a quality measure published by the Centers for Medicare & Medicaid Services.
Practice Locations
4 locations
Castle Medical CenterPrimary
321 N KUAKINI ST, Honolulu, HI 968172399
(808) 523-8611
Affiliations
Hospitals where providers at Castle Medical Center hold admitting privileges
Insurance Networks
Accepted insurance plans and networks
Castle Medical Center accepts 87 plans from 11 insurers, including Cigna, Kaiser Permanente Hawaii, Aetna.
Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.
Quality & Performance
Specialties at Castle Medical Center
Provider specialties represented at this practice
Healthcare Providers in Honolulu
4 providers practice here
Frequently Asked Questions
Common questions about Castle Medical Center
How many providers are at Castle Medical Center?
Castle Medical Center has 85 affiliated healthcare providers across 4 locations. You can browse the full provider roster, with specialties and locations, on this page.
What specialties does Castle Medical Center offer?
The practice includes providers in internal medicine, nurse practitioner, family practice, and general surgery, among others. Use the specialty filter on the provider list to find a specific type of provider.
What insurance does Castle Medical Center accept?
Providers at Castle Medical Center are collectively in-network with 25 insurance plans. Acceptance varies by individual provider, so confirm your specific plan with the office before your visit.
Does Castle Medical Center have a quality rating?
The practice's providers have an average MIPS quality score of 72.7 out of 100, based on Centers for Medicare & Medicaid Services data. MIPS measures performance across quality, cost, care coordination, and use of health technology.
Where is Castle Medical Center located?
Castle Medical Center's primary location is in Kailua, HI, with 3 additional locations listed on this page. See the contact section for the full address and phone number.
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