Our History

Physicians' Organization of Western Michigan evolved from Grand Rapids Physicians' Corporation (GRPC), a physician organization formed in 1986, to be the physician component in a three-way Care Choices contract, along with Blodgett Memorial Medical Center and St. Mary's Hospital. For the next seven years, GRPC limited its activities to its role in that contract.

In 1993, physicians began discussions with Blodgett and forming a Physician Hospital Organization (PHO). However, they were reluctant to proceed until they had a strong Physicians' Organization (PO) in place. After deciding what their new PO should look like, the early organizers realized that an organization already existed which had many of those characteristics. Not only was GRPC already capitalized, its membership had eight years of managed care experience. Thus, the evolution of GRPC into POWM had begun. The organization was restructured, putting an emphasis on governance by primary care physicians (PCPs). The bylaws and other documents then were revised to reflect POWM’s expanded scope and mission.

In 1994, POWM hired former Executive Director David Silliven to develop and market a new competitive insurance product called Physicians Care, and to put in place a network of physicians who would control the delivery of its services. After more than two years of laying the groundwork, Physicians Care was launched in late 1996 and, within one year, experienced explosive growth both in the size of its participating panel and in the number of covered lives.

POWM is now poised to take its place as a leading health care delivery system in the local and regional marketplace. As one of the largest physician organizations in Michigan, POWM leads the way in promoting the independence of physicians. Through POWM, physicians can speak with a single voice on issues affecting quality of care, patient access, and medical reimbursement.

We continue discussion with other POs, PHOs, and physician-driven networks and are open to any business opportunity that improves the quality of care for our patients. Whether through our successful collaborations or because of the number and quality of services to our members, POWM has become an influential force in shaping the delivery of health care in West Michigan.

Our Vision

Physicians’ Organization of Western Michigan, Inc. recognizes that the health care market in West Michigan is in a state of rapid change.

  • We will work to provide our physician shareholders with services that promote the financial strength of their practices and maintain their choice of independent medical practice.
  • We will collaborate and develop strategic relationships to improve the quality of the care we bring to our patients.
  • We will use patient registries and information technology to gather the data to enhance our performance in quality and payment programs and to demonstrate clinical integration.
  • We will work for a healthier community and a more robust health care market.

Mission Statement

Those engaged in the practice of medicine hold the ethical responsibility to best champion their patients’ welfare.

To this end:
Physicians' Organization of Western Michigan, Inc. will further the preservation of physician decision-making, the networking of ideas and relationships, the gathering of healthcare information and the economic viability of the provider community.

Our Team
At POWM, we are proud to have a successful executive team here to support you! From data analysis to quality services specialists, we have the staff you can rely on. We are proud to offer support for both the big picture and day-to-day activities to practice transformations.
Cherie Nyhuis, RN, BSN, MSM
Executive Director
 Antionette Henry
Credentialing, Data, and Operation Specialist
Grace Calderon
Operations Manager
Karen Paradiso
Chair, Practice Administrator and Manager Committee
Ron Zant

Physician Mgmt. Partners

Board of Directors

President: Randall Clark, MD - Riverwood Family Medicine, PC
Treasurer: R. Troy Carlson, MD – Family Tree Medical Associates
Vice President: Alan Siegel, MD - Cascade Pediatrics
Secretary: Michael App, MD – Internal Medicine and Pediatrics of West MI
• Amy S. Beck, MD – Bright Start Pediatrics
• Michael Bultje, DO -  Grand Valley Medical Specialist
• Michelle Davis, MD - West Michigan Family Medicine
• John LaGrand, MD - Advanced OB-GYN
• Prerana Manohar, MD - Heart and Wellness Institute
• Craig Matheson, DO - Craig Matheson, DO PLLC
•  John Maurer, MD - Grand Valley Medical Specialist
• Scott S. Russo, MD - Orthopaedic Associates of MI
• David Thompson, MD - Urology Surgeons, PC
• Douglas VanDrie, MD – Michigan Affiliated Physicians
• Cherie Nyhuis, Executive Director (non-voting member)

As one of the largest physician organizations in Michigan, POWM leads the way in promoting the independence of physicians.