Part B Providers and Professional Outpatient Critical Access Hospital Services

Critical Access Hospitals (CAHs) can only bill for facility and professional outpatient services if the physician or practitioner reassigns their billing rights to them.

Physicians or practitioners providing professional outpatient CAH services can either:

• Reassign their billing rights to the CAH and agree to the optional payment method. They must attest that they won’t bill for these services.
• File Medicare Administrative Contractor claims for these services under the Medicare Physician Fee Schedule

Please review the CMS MLN Booklet (PDF) for full details.