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Faculty

Chad McCambridge, M.D. 
Chad McCambridge, M.D.
Program Director
 

Dr. Chad McCambridge became the Program Director at Mercy Family Medicine Residency on March 1, 2011.

He is a 2001 graduate of the University of Iowa College Of Medicine. He completed the Mercy Family Medicine Residency in Mason City, IA in 2004. He is certified by the American Board of Family Medicine. Dr. McCambridge has been in private practice the last 6 years practicing full spectrum family medicine including teaching medical students and residents at Mercy Family Clinic-Regency in Mason City. His medical interests are in obstetrics and chronic disease management.

Dr. McCambridge is married with two sons. He enjoys traveling and spending time with his family in his spare time.

Douglas Boss, M.D.
Douglas Boss, M.D.
Assistant Director
 

Dr. Boss is a 1986 graduate of Rush Medical College in Chicago. He completed his residency at Flower Memorial Hospital outside of Toledo. He is certified by the American Board of Family Medicine and is a Fellow of the AAFP. After eight years of private practice, Dr. Boss spent ten years teaching at a program in Indiana. He completed a program director fellowship through the National Institute for Program Director Development and was in the inaugural class of the Institute’s advanced fellowship. He is a career-long proceduralist and has research interest in quantifying the benefits of continuity of care.

Dr. Boss is married and has two children. He spends his spare time reading science fiction and on home projects.

 

David Hanson, M.D.
David Hanson, M.D.
Assistant Director
 

Dr. Hanson graduated from the University of Iowa College of Medicine in Iowa City, Iowa in 1978 and completed his family medicine residency at Broadlawns Medical Center in Des Moines. He is certified by the American Board of Family Medicine. Dr. Hanson was in private practice for seven years and served as a faculty in another residency program for four years before joining the Mercy Family Medicine Residency faculty in 1993. His special areas of medical interest are preventive health care, patient education, and obstetrics. Dr. Hanson completed faculty development education through Duke University.

Dr. Hanson is married with 3 children. During his spare time, he is involved with church activities, family activities, reading and skiing.

 

Bob Johannesen, M.D.
Bob Johannesen, M.D.
Assistant Director
 

Dr. Bob Johannesen graduated from Loyola University Chicago Stritch School of Medicine in 1977. He did his residency at the University of Iowa and St. Joseph Mercy Hospital in Mason City .He is board certified by American Board of Family Medicine.

Dr Johannesen spent five years in traditional family practice setting but the main focus of his career has been in Emergency Medicine. He spent 26 years in the ER here at Mercy North Iowa, 13 years as director. His area of interest includes toxicology, emergency medical systems and prehospital care.

Dr Johannesen is married with four grown children. In his off time he enjoys his family, electronics projects, working on his boat, and reading.

 

 Crystal Menken, Psy.D.
Crystal Menken, Psy.D. Assistant Director
 

Crystal Menken, Psy.D. is a licensed clinical psychologist and the Behavioral Science Coordinator at Mercy Family Medicine Residency program.

She graduated in 2007 with a Doctor or Psychology degree from Forest Institute of Professional Psychology in Springfield, MO.She worked in outpatient community mental health for five years. Her clinical interest is in treatement of children.

Dr. Menken is married and has two children. She enjoys spending time with her family in her spare time.

 Christopher Morse, D.O.
Christopher Morse, D.O.
Assistant Director
 

 Dr. Chris Morse graduated from Philadelphia College of Osteopathic Medicine in May 2004. He completed the Northeast Regional Medical Center residencies in Family Medicine and Neuromusculoskeletal Medicine in 2008. Dr. Morse has been in private practice for the past 3 years. His medical interests include osteopathic manipulative treatment, patient education, and preventative health care.

Outside of work, Dr. Morse enjoys canoeing, reading, cooking, and church activities.

John Swegle, Pharm. D.
John Swegle Pharm. D.
Clinical Pharmacist
 

Dr. Swegle graduated from Drake University College of Pharmacy in Des Moines in 1992. He received a Doctor of Pharmacy degree from the University of Iowa in 1996 and completed a pharmacy residency in family practice at the University of Iowa Hospitals and Clinics. He is also certified as a pharmacotherapy specialist by the Board of Pharmaceutical specialities. His medical interests include geriatrics, psychiatry, and patient education.

Dr. Swegle joined the residency faculty in 1997. In addition to his residency responsibilities he serves on the faculty of the University of Iowa College of Pharmacy. He is a past recipient of the University of Iowa College of Pharmacy "Teacher of the Year" award.

Dr. Swegle is married with three children. He enjoys golfing, sports, and outdoor activities

 

Sharla Wellik
Sharla Wellik
Program Coordinator
 

Sharla facilitates the residents' training during their three years in Mason City. She has been the residency's coordinator since 1997. She arranges and schedules clinic time and rotations, maintains communication with community physicians’ offices, hospital administrative staff and coordinates other residency educational responsibilities and events. Sharla also coordinates resident recruiting, schedules interviews and makes arrangements for resident applicants.

Away from the office she enjoys spending time with her husband, visiting her three grown children, baking, biking, and gardening.

 

Jerrold White, M.D.
Jerrold White, M.D.
Assistant Director

Dr. White is a 1987 graduate of the University of Iowa College of Medicine located in Iowa City. He completed a residency in family medicine at St. Joseph Mercy Hospital in Mason City and is certified by the American Board of Family Medicine. Dr. White spent two years splitting time between private practice and teaching before joining the faculty full-time in 1992. He has completed faculty development education through Duke University. His medical interests include preventive medicine and smoking cessation.

Dr. White is married with five children. He enjoys sports, baseball history, music, and bicycling.

 

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 Mercy Medical Center-North Iowa | 1000 4th Street SW Mason City, IA 50401 | 641-428-7000

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