Go back to directory. Add to Address Book. Oak Hill Oak Hill Contact: Christy Brinkmann 623 Hamacher St. Waterloo IL 62298 work 623 Hamacher St. Waterloo IL 62298 postal Work Phone: 939-3488work Work Fax: 939-5030workfax Work Email: cbrinkmann@oakhillmonroecounty.comINTERNET Website: http://www.oakhillmonroecounty.com Categories: Independent & Assisted Living Community, Nursing Home, Senior Health Care, Senior Living Updated 4 years ago.