Hawaii is unique in the US healthcare landscape because of its 1974 Prepaid Health Care Act, which requires most employers to provide health insurance to employees working 20+ hours per week. This law — predating the ACA by 36 years — has produced some of the lowest uninsured rates in the country and a mature managed care market. The vast majority of Hawaii residents have commercial or managed Medicaid coverage, making network participation essential for sustainable practice.
Hawaii Medical Service Association (HMSA) is the Blue Cross Blue Shield plan for Hawaii and by far the dominant commercial insurer on Oahu and statewide. Kaiser Permanente Hawaii is the second largest carrier, operating as a staff-model HMO with its own employed physician network — independent providers cannot credential with Kaiser but must credential with HMSA and other plans.
MedQUEST is Hawaii's Medicaid managed care program, operating through HMSA and United Healthcare Community Plan of Hawaii (formerly ʻOhana Health Plan). Each plan requires separate credentialing. Hawaii expanded Medicaid under the ACA, though the expansion impact was smaller than most states given existing coverage laws.
Arctic Health helps Hawaii providers credential with HMSA and all MedQUEST managed care plans, with expertise in Oahu's concentrated market and the inter-island credentialing logistics for providers serving neighbor island practices.
Licensure Requirements in Hawaii
Average Credentialing Timeline
Typical time from application submission to approval in Hawaii
Hawaii Medicaid Program
Key Regulations in Hawaii
Major Payers in Hawaii
Frequently Asked Questions
Why does Hawaii have such high insurance coverage rates?
Hawaii's 1974 Prepaid Health Care Act requires most employers to provide health coverage to employees working 20+ hours per week. This decades-old law predates the ACA and has produced one of the nation's lowest uninsured rates.
Is HMSA (Hawaii Medical Service Association) the most important payer in Hawaii?
Yes. HMSA is Hawaii's Blue Cross Blue Shield plan and the dominant commercial insurer statewide. It is by far the highest-priority credentialing target for any Hawaii practice.
How does inter-island practice affect credentialing in Hawaii?
Providers with practices on multiple islands need to ensure their credentialing covers all relevant payers for each island's patient population. HMSA and MedQUEST plans are statewide, but hospital privileges and some specialty networks may vary by island.
Reviewed by Arctic Health Team , Credentialing Specialists
Last reviewed: September 2026
Information on this page reflects our experience as of September 2026. Credentialing requirements, payer processes, and state regulations may change. Contact us or check the relevant state medical board and payer websites for the most current requirements. This content is for informational purposes only and does not constitute legal or professional advice.