– Comment by July 11. The Centers for Medicare & Medicaid Services (CMS) seeks comments from the public on the following information collections: 1) Identification of Extension Units of Medicare Approved Outpatient Physical Therapy/Outpatient Speech Pathology (OPT/OSP) Providers and Supporting Regulations and 2) Conditions for Certification for Rural Health Clinics and Conditions for Coverage for Federally Qualified Health Centers in 42 CFR 491.