The event will be from 7-11 p.m. at the Brynwood Country Club, 568 Bedford Road.
It will be hosted by the Open Door Foundation to benefit Open Door Family Medical Centers.
Rheingold is a former Open Door Foundation board member.
There will be live bluegrass music featuring the band Love Canon, harvest fare and square dancing.
Tickets start at $200.
Open Door has centers in Ossining, Port Chester, Mount Kisco, Sleepy Hollow and Brewster.
Tickets are available at www.opendoormedical.org/foundation/events/hoedown.
For more information, call Cristina Sanjuas at 914-502-1414 or send an email to csanjuas@odmfc.org.
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