Optometrist, according to section 1861(r)(4) of the SSA,and CMS Sec. 410.20, are designated
a physician with all of the privileges and honors of that professional designation.
heres the link:
http://www.ssa.gov/OP_Home/ssact/title18/1861.htm
(r) The term physician, when used in connection with the performance of any function or action, means...(4) a doctor of optometry, but only for purposes of subsection (p)(1) with respect to the provision of items or services described in subsection (s) which he is legally authorized to perform as a doctor of optometry by the State in which he performs them
---(P)(1) refers to the term outpatient physical therapy services
and CMS:
http://www.google.com/url?sa=t&source=web&ct=res&cd=1&url=http%3A%2F%2Fedocket.access.gpo.gov%2Fcfr_2006%2Foctqtr%2Fpdf%2F42cfr410.20.pdf&ei=GzoNSdrSCZK2sAPRnsCDDw&usg=AFQjCNGaIgVQp-9gqf5q_VepLcsFkSn3KA&sig2=7Q3_fr27G_JfJyh7UiaQBQ
410.20 Physicians services.
(b) By whom services must be furnished. Medicare Part B pays for the services specified in paragraph (a) of this section if they are furnished by one of the following professionals who is legally authorized to practice by the State in which he or she performs the functions or actions, and who is acting within the scope of his or her license...(4) A doctor of optometry.