• Ambulance companies
  • Audiologists
  • Board-certified behavioral analysts
  • Certified nurse midwife
  • Certified nurse practitioner
  • Certified registered nurse anesthetist
  • Dentists
  • Durable medical equipment suppliers
  • Freestanding extracorporeal shockwave lithotripsy, or ESWL facilities
  • Freestanding outpatient facilities
    • Ambulatory infusion center
    • Ambulatory surgical facility
    • Mental health care
    • Outpatient professional psychiatric care, or OPPC
    • Substance abuse treatment
  • Freestanding radiology centers
  • Home health care
  • Home infusion therapy, or HIT
  • Hospice care
  • Long-term acute care hospital, or LTACH
  • Optometrists
  • Oral surgeons
  • Private duty nursing
  • Prosthetic and orthodic suppliers
  • Skilled nursing care facilities, or SNF
  • Urgent care centers
  • Limited license psychologists