Tatiana, who is a Medicare patient, is seen at Smiling Faces Physician Practice. The total charge for the office visit is $125.00. Tatiana has previously paid her Medicare Part B deductible. The Medicare physician fee schedule amount for this service is $84.00. The nonparticipating Medicare fee schedule amount for this service is $79.80. Tatiana's provider was a physician assistant that performed the service incident to Dr. Lee, who is a Medicare participating physician. What is the total amount that CMS will reimburse for this encounter?

A) $84.00
B) $79.80
C) $125.00
D) $100.00