W. Va. Code § 16-62-1
For the purposes of this article:
"Department" means the Department of Human Services.
"Health care provider or health care facility" means any person or entity licensed, certified, or authorized by law to provide professional health care service in this state to a patient during that patient's medical, remedial, or behavioral health care, treatment, or confinement.
"Health care provider network entity" means a corporation, partnership, or limited liability company owned or operated by two or more health care providers and organized for the purpose of entering into agreements with health insurers, health care purchasing groups, or the Medicare or Medicaid program.
"Health insurer" means any insurance company authorized to transact health insurance in the state, any insurance company authorized to transact health insurance or casualty insurance in the state that is offering a minimum premium plan or stop-loss coverage for any person or entity providing health care benefits, any self-insurance plan, any health maintenance organization, any prepaid health clinic, any prepaid limited health service organization, any multiple-employer welfare arrangement, or any fraternal benefit society providing health benefits to its members.
"Recovery residence" has the same meaning as set forth in § 16-59-1 of this code.
W. Va. Code § 16-62-1