Dr. John P Gerlach is a male Internal Medicine Doctor (taxonomy code 207R00000X) located in Milwaukee, Wisconsin. Dr. John P Gerlach's NPI Number is #1841379120 and has been listed in the NPI registry for 12 years. Dr. John P Gerlach's practice location is listed as: 2311 N Prospect Milwaukee, WI 53211 and can be reached via phone at (414) 319-3000.
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