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Celina Office

Beth Otte

Beth has been working for Mercer In-Sight since June of 2016. Beth is our Business Manager for all four of our locations. She is responsible for the operations and hr side of the practice’s. Beth lives in Celina with her husband, Dr. Chad Otte, and their two kids, Lucy and Beau.

Haley Bretz

Haley has been working Mercer In-Sight family since 2014. She is a Celina High School graduate as well as a Wright State Lake Campus graduate in which she earned her degree in Medical Assisting. She enjoys meeting with our patients and recently took over the roll of insurance billing for our VSP and EyeMed patients. Haley and her husband Jordan live in Celina with their daughter, Addison.

Joan Huelsman

Joan has worked for Dr. Tangeman as an optometric assistant for 23 years. Prior to working for Dr. Tangeman, she worked at Lake Ophthalmic laboratory for 10 years as an optician. Like all of our staff, she also has Shamir Freeform Certification. She has been married to her husband Robin for 32 years. They have two children, Isaac and Jocelyn. They reside in Celina.

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