About Our Celina Office

Mercer In-Sight Family Eye Care is formerly Dr. Frank Tangeman’s office. Dr. Tangeman retired in the summer of 2016 after over 40 years of service to the Celina area. Mercer In-Sight Family Eye Care is located directly across from the Celina High School and has a parking lot behind the building.

Get to know our Staff

Marlene Sommer – Certified Paraoptometric
Marlene started working for Dr. Tangeman in 1973 when he first came to Celina, giving her 43 years of experience in optometry. She is a certified paraoptometric and is always happy to assist you with all of your eye care needs. Marlene’s husband, Steve is also in the eyewear business as owner of Sommer Optical. They have two children, Andrew and Alyssa. Marlene is also the president of The Cancer Association of Mercer County and the founder of her own designer line T-shirts and a non-profit organization for cancer patients.

Makaella Howell – Optician
Makaella Howell began working for us in March of 2018. Makaella comes to us with optical experience and has been a wonderful addition to our team! Makaella has great taste in style and will help you find the perfect new look!

Joan Huelsman – Optometric Assistant
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.

Haley Bretz – Certified Paraoptometric
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.

Beth Otte – Business Manager
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.

Location Photos

celina sign

Our Locations


  • 706 E Wayne St.
  • Celina, OH 45822

Phone: 419-586-2909

About Celina


  • 515 E. Main St. Suite B.
  • Anna, OH 45302

Phone: 937-639-2909

About Anna

Van Wert

  • 321 W Main St.
  • Van Wert, OH 45891

Phone: 419-238-5503

About Van Wert


  • 594 N Vandemark Rd
  • Sidney, OH 45365

Phone: 937-492-1990

About Sidney