Noridian Healthcare Solutions, Medicare Administrative Contractor for the states of Alaska, Arizona, California, Hawaii, Idaho, North Dakota, Nevada, Oregon, South Dakota, Utah, Washington, and Wyoming, has published their Medicare participating practitioner directory. The Medicare Participating Physician Directory (MEDPARD) is a list of physicians, suppliers and practitioners (Medicare health care providers including therapists in private practice) who have signed an agreement to accept assignment on all claims. Participating providers should visit the MEDPARD directory to check their practice information for accuracy. Your participation information should appear on the website defined below. Contact Provider Enrollment directly if specific information appearing is incorrect,