440.50—Physicians' services and medical and surgical services of a dentist.
        
        (a) 
         “Physicians' services,” whether furnished in the office, the recipient's home, a hospital, a skilled nursing facility, or elsewhere, means services furnished by a physician—
    
    
    
        
        (2) 
         By or under the personal supervision of an individual licensed under State law to practice medicine or osteopathy.
    
    
        
        (b) 
         “Medical and surgical services of a dentist” means medical and surgical services furnished, on or after January 1, 1988, by a doctor of dental medicine or dental surgery if the services are services that—
    
    
    
        
        (2) 
         Under the law of the State where they are furnished, may be furnished either by a physician or by a doctor of dental medicine or dental surgery; and
    
    
        
        (3) 
         Are furnished by a doctor of dental medicine or dental surgery who is authorized to furnish those services in the State in which he or she furnished the services.
    
    [56 FR 8851, Mar. 1, 1991]