383.150.  Definitions. — As used in sections 383.150 to 383.195, the following terms shall mean:

  (1)  "Association" means the joint underwriting association established pursuant to the provisions of sections 383.150 to 383.195;

  (2)  "Director" means the director of the department of commerce and insurance;

  (3)  "Health care provider" includes physicians, dentists, clinical psychologists, pharmacists, optometrists, podiatrists, registered nurses, physicians' assistants, chiropractors, physical therapists, nurse anesthetists, anesthetists, emergency medical technicians, hospitals, nursing homes and extended care facilities; but shall not include any nursing service or nursing facility conducted by and for those who rely upon treatment by spiritual means alone in accordance with the creed or tenets of any well-recognized church or religious denomination;

  (4)  "Medical malpractice insurance" means insurance coverage against the legal liability of the insured and against loss, damage, or expense incident to a claim arising out of the death or injury of any person as a result of the negligence or malpractice in rendering professional service by any health care provider;

  (5)  "Net direct premiums" means gross direct premiums written on casualty insurance in the state of Missouri by companies authorized to write casualty insurance under chapter 379, RSMo 1969, in the state of Missouri, less return premiums thereon and dividends paid or credited to policyholders on such direct business.