Chief of Staff & Inpatient Medical Director

Dr. Matt Olson is a Hospitalist in Inpatient Services at Mahaska Health. Though he has had multiple careers prior to practicing medicine, Dr. Olson wanted something more service-oriented and medicine was a good fit. Dr. Olson enjoys small midwest towns and chose hospital medicine to provide care for people at fragile and important times, making…

John O’Brien, MD

John O’Brien, MD specializes in the care of children from birth to 18 years of age and has been serving the Mahaska Health community since 2009. Originally from Chicago, O’Brien loved science from a young age and wanted to apply that love of science to his love for helping people. Dr. O’Brien chose pediatrics because…

Geriatric & Skilled Nursing Care Medical Director, Geriatrics

Dr. David North serves as the Medical Director for Geriatric and Skilled Nursing Care at Mahaska Health. He has provided compassionate care in the community for nearly 25 years, and has largely focused his career on providing care to the elderly population in Mahaska County. Dr. North and his colleague Lisa Nelson, ARNP, serve as…

Deb De Jong

Emergency Medicine

Deborah Nielsen-DeJong, MD, is passionate about her work with emergency medicine. She originally became a provider because she enjoys working with people and problem solving, and she continues to find joy while easing her patient’s fears and providing them with excellent healthcare. Deb approaches each patient as if they were her own family member, ensuring that they get the…

Geriatric Care

Lisa Nelson, ARNP, provides Geriatric and Skilled Nursing care at Mahaska Health. For Lisa, she was led to providing geriatric care while she was completing her nurse practitioner degree at the University of Iowa in 2003. Her grandmother received care at a long-term care facility, and she realized quickly that she wanted to provide this…

Stephen Mineart, MD

Family Practice

Stephen Mineart, MD, has served the Oskaloosa community as a primary care physician since 1987. Dr. Mineart was drawn to the medical field because of his love of science and biology and enjoys building a longitudinal relationship with his patients, learning who they are and hearing their stories. In his more than 32 years at…

Eric Miller, DO

Family Practice

Eric Miller, DO, has been with Mahaska Health since 2015. He grew up on a farm just outside Ottumwa, IA and chose Mahaska Health because he has always wanted to be close to home in a rural setting. Eric gravitated toward medicine since his mother is a Pediatrician, but he wanted to see a variety…

Michael McCubbin, MD

Sleep Medicine

Dr. Michael McCubbin is at Mahaska Health the 1st & 3rd Friday every month. To schedule an appointment, call Broadlawns at 515.282.4015. Specialty Sleep Medicine Board Status American Board of Allergy American Board of Pediatrics Education University of Iowa College of Medicine, Iowa City, IA Residency University of Iowa Hospital and Clinics, Iowa City, IA…

Michelle Mason, LMT

Licensed Massage Therapist

Michelle is a Licensed Massage Therapist specializing in Swedish, deep tissue and prenatal massage, as well as reflexology. Michelle’s favorite thing about being a massage therapist is customizing the massage experience for each person’s individual preferences. Whether you want to relax, or are having an issue with an injury or stress, Michelle can adjust to…

Dr. Matthew McCormick, is at Mahaska Health the 1st & 3rd Tuesday of every month. To schedule an appointment, call Iowa Heart Center at 515.235.5000. Specialties Cardiology Education University of Iowa, Iowa City, IA Residency University of Nebraska Medical Center, Omaha, NE Fellowship University of Nebraska Medical Center, Omaha, NE Location Visiting Specialist, Mahaska Health,…