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Dr. Gerald J. Kallas, M.D. is an internist in Oconomowoc, WI specializing in internal medicine (adult medicine).
1437 N Summit Avenue
Oconomowoc, WI 53066
He has a state license in Wisconsin.
Licensed In: Wisconsin
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Dr. Gerald Kallas is an Oconomowoc, WI physician who specializes in general internal medicine. Dr. Kallas has obtained a license to practice in Wisconsin.