Local doctors join Spectrum Health Medical Group

February 5, 2014
Dr. Tim O'Callaghan

Dr. Tim O’Callaghan

LUDINGTON — On February 1, 2014, Northwest Personal Healthcare became part of Spectrum Health Medical Group, providing patients with expanded access to some of west Michigan’s most experienced and skilled medical specialists

The practice is located next to Spectrum Health Ludington Hospital. Board-certified physicians Mary O’Callaghan, DO, Timothy O’Callaghan, DO and Amanda Overmyer, MD provide internal medicine and family medicine to patients in Ludington and surrounding communities.

Dr. Mary O'Callaghan

Dr. Mary O’Callaghan

“Tim and Mary O’Callaghan and Amanda Overmyer have been providing medical care leadership to the Mason County and surrounding communities for many years,” said Mark Vipperman, president, Spectrum Health Ludington Hospital. “I’m pleased to see them expand their medical practice by joining Spectrum Health Medical Group.”

Dr. Tim O’Callaghan served as chief of the medical staff at Spectrum Health Ludington Hospital from July 2011 to September 2012; Dr. Mary O’Callaghan has served as medical director of clinical quality at Spectrum Health Ludington Hospital since May 2010 and Dr. Overmyer provided oversight to the area’s Win with Wellness health screening program and has been a speaker at several community health education seminars.

Dr. Amanda Overmyer

Dr. Amanda Overmyer

The former Memorial Medical Center of West Michigan joined Spectrum Health to become Spectrum Health Ludington Hospital on October 1, 2013. Patients benefit by continued access to skilled local specialists, and are now connected to a nationally recognized health system with an additional network of specialists, surgeons, researchers, nationally recognized medical experts and other care providers.

“Spectrum Health has had an excellent working relationship with the Ludington area medical community for many years,” said Seth W. Wolk, MD, MHSA, interim president, Spectrum Health Medical Group. “We are very happy to welcome the outstanding professionals from Northwest Personal Healthcare to join us as part of Spectrum Health Medical Group.”

Spectrum Health Medical Group’s Ludington office is accepting new patients and will continue providing care at 922 Lawndale Street.


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