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Our Staff

Our full time staff consists of over 20 professionals, including a Registered Nurse, Licensed Practical Nurses, Medical Assistants, Phlebotomists, Medical Technicians, Medical Records Technicians, and Telephone triage personnel. They receive continual training to stay current with modern medical equipment and techniques.

Our Doctors

Jennifer L. Conner, M.D.

Education: Cedarville (OH) College 

Medical School: Medical College of Ohio 

Residency: W. W. Knight Family Practice at The Toledo Hospital 

Clinical interests: Women's health issues 

Personal interests: Former small aircraft piloting and skydiving with husband, church activities, horses and time with family.

Fax: (877) 386-2606

Frank A. Cosiano, M.D.

Education: University of Notre Dame 

Medical School: The Ohio State University

Residency: The Toledo Hospital, Family Practice 

Clinical interests: Preventive medicine 

Personal interests: University of Notre Dame fan, coaching youth soccer, golfing.

Fax: (877) 636-2953

William E. Hopkins, M.D.

Education: The Ohio State University 

Medical School: Medical College of Ohio 

Residency: Riverside Methodist Hospitals, Columbus 

Clinical interests: Sports related medicine, loves the diversity of family practice 

Personal interests: Church and community volunteer activities, Ohio State fan, team doctor.

Fax: (888) 990-1953

Donald D. Johnson, D.O.

Education: The Ohio State University 

Medical School: Midwestern University, Chicago, Osteopathic Medicine 

Residency: W. W. Knight Family Practice at The Toledo Hospital 

Clinical interests: Preventative Medicine, wide-spectrum of family practice and patient education 

Personal interests: Time with family, outdoors and music.

Fax: (877) 692-7452


Kathryn Karhoff, D.O

Education: Miami University (Ohio)

Medical School: Ohio University School of Osteopathic Medicine

Residency: W. W. Knight Family Practice at The Toledo Hospital

Clinical interests: Preventive care, osteopathic manipulative medicine

Personal interests: Family time with her spouse and three sons. Enjoys exercise and healthy cooking.

Fax: (888) 491-6405

Todd A. Leslie, D.O.

Education: University of Puget Sound (Tacoma, Washington)

Medical School: Kirksville College of Osteopathic Medicine (Kirksville, Missouri)

Residency: W. W. Knight Family Practice at The Toledo Hospital 

Clinical interests: Pediatric development, diabetes, hypertension, renal disease and hematology. 

Philanthropic interests: President of Gracespeaks.org a local non-profit for affordable speech therapy.

Personal interests: gardening, landscaping, teaching, computer networking, fixing stuff and family time.

Email Address: todd_leslie_do@myupdox.com

Fax: (888) 835-4993

David A. Ware, M.D.

Education: Purdue University, West Lafayette, IN 

Medical School: Ohio State College of Medicine, Columbus, OH 

Residency: Memorial Hospital, South Bend, IN 

Clinical interests: Sports Medicine and Family Care 

Personal interests: Church activities involving youth and music, basketball, volleyball, and tennis league play.  

Fax: (877) 795-8023   

Cara E. Derck, D.O.

Education: Bowling Green University, Bowling Green Ohio, 2004

Medical School: Lake Erie College of Osteopathic Medicine, Erie, PA, 2009

Residency: Garden City Hospital, Garden City, MI, 2012

Clinical interests: Osteopathic Manipulation for acute and chronic pain relief without medication, Geriatrics, Preventative Medicine, Women's Health

Personal Interests: Gardening, Hiking, time with family, native of Fostoria, OH