Portage Family Medicine

John C. Foss, M.D.
Michael K. Chen, M.D.
Isabelle E. Lane, D.O.
Gabrielle M. Koczab, D.O.
Charles W. Haver, P.A.-C







Rosemont Professional Building
9480 Rosemont Dr.
Streetsboro Ohio 44241

Medent Patient Portal

John Foss, M.D.
  • Medical School: University of Michigan
  • Joined PFM: 1989
  • Special Medical Interests: Diabetes, High blood pressure, Asthma
  • What's his secret to being a good doctor: Having dedication and being a good listener.
A passion for science and a desire to help people brought Dr. John Foss to medicine. In fact, helping people and problem solving are his favorite things about being a doctor. Guiding his patients to a healthier life is his primary goal.

When not at the office, Dr. Foss makes time with his family a top priority. He also enjoys golfing, and reading scientific and biblical literature. He and his family attend Northampton Bible Church.

Michael Chen, M.D.
  • Medical School: University of Maryland School of Medicine
  • Joined PFM: 2009
  • Special Medical Interests: Preventative medicine, chronic disease management, under-served urban medicine
  • What's his secret to being a good doctor: Establishing a relationship of trust, mutual partnership and patient-empowerment.  I like to listen to patients and try to understand the whole perspective of health and illness.


Dr. Michael Chen became a Family Physician because he sees health not just as an issue of the physical, but of the mental, relational, and spiritual.  He is honored to be a trusted part of his patients' lives and wants to be part of helping people to live healthy, purposeful existences.  Dr. Chen believes that God gives us all wonderful gifts, and a life well lived is one that glorifies his or her Creator with those very gifts.

When he is not at work, Dr. Chen loves to spend time with his beautiful wife, Sophia, who is a Pediatric Hospitalist at Akron Children's Hospital.  They enjoy cooking, eating, playing guitar, quiet evenings at home, exploring the outdoors, photography, and enjoying fellowship and teaching at their church, Sovereign Grace Church of Cleveland, where he occasionally leads the worship team.

Isabelle Lane, D.O.
  • Medical School: Ohio University College of Osteopathic Medicine
  • Joined PFM: 2009
  • Special Medical Interests: Disease prevention and health promotion for all age groups, Osteopathic Manipulative Treatments, International/missionary medicine
  • What's her secret to being a good doctor: I try my best to give my patients my complete attention and treat them with respect.  I also try to care for patients how I would want my own family to be treated.


Dr. Isabelle Lane always had a great desire to help people and Family Medicine gives her the opportunity to care for entire families.  She loves being able to care for children, their parents, and their extended families.  She feels honored to be able to provide medical care for people.

When not at work, Dr. Lane focuses on her wonderful husband and three daughters.  She loves spending quality time with her family, going to church, enjoying all types of sports, exercising, music, traveling, and art.

Gabrielle Koczab, D.O.
  • Medical School: Lake Erie College of Osteopathic Medicine
  • Joined PFM: 2010
  • Special Medical Interests: Osteopathic Manipulation, Women's Health, Pediatrics, and alternative medicine
  • What's her secret to being a good doctor: Taking time to get to know your patients and tailoring their care to their lives.


Dr. Gabrielle Koczab grew up in Detroit, came to the Cleveland area to attend college, and has enjoyed being here ever since.  She finds that being a doctor provides an opportunity to touch people's lives in a unique way, and finds great joy doing so.

Dr. Koczab enjoys exercising, and spending time with her husband and son when she isn't busy caring for her patients.

Chuck Haver, P.A.-C
  • Medical School: Chatham University
  • Joined PFM: 2006
  • Special Medical Interests: Pediatric and adolescent care, Sports Medicine
  • What's his secret to being a good P.A.: Taking time to explain the patient's condition and ensuring their understanding of the treatment plan.


At a young age, Chuck always had a fascination with science and the workings of the human body, which lead him into the medical field. He has worked in Family Practice since 2001.

Chuck loves spending quality time with his wife and four children, and enjoys multiple sports, computers, and "relaxing" by doing yard work.  Chuck and his family attend Fishcreek Church of the Nazarene.  Growing up, he always looked forward to the long-time family tradition of vacationing in Myrtle Beach, which he has now continued with his own family.