Nurse Practitioners
Our five nurse practitioners are the backbone of Matrix Pain Management. They work in conjunction with our physicians and are the first person you’ll discuss your condition with.
Our nurse practitioners have a combined 60 years of experience. Along with their family-focused nurse practitioner training, they each hold a master-of-science degree in nursing and board certifications for pain management in nursing. All of our nurse practioners are also adjunct faculty at Saginaw Valley State University. Additionally, all are continually educated by our top-notch physicians to make your treatments as effective as possible.
Meet our nurse practitioners:
 |
Marcie S. Welker, RNc, MSN, FNP Marcie has experience as an RN in emergency medicine and critical care areas at Hurley Medical Center in Flint, MI. She earned her BSN from the University of Michigan, Flint, and her MSN from Saginaw Valley State University. She is board certified as a nurse practitioner with an additional board certification in pain management, which qualifies her to be an expert in this field. She is a member of the American Academy of Nurse Practitioners, Michigan Council of Nurse Practitioners, American Society of Pain Management Nurses, and frequent guest lecturer in the SVSU Nurse Practitioner Program, as well as community lecturer on complex pain management issues. |
 |
Pat Frick, RNc, MSN, FNP Pat is a graduate of Saginaw Valley State University, where she earned both her BSN and MSN. Previous clinical experience included the positions of staff nurse in the areas of pediatrics and outpatient surgery. She was an associate professor of nursing for 6 years, and currently presents educational programs to staff for continuing education. She is board certified as a family nurse practitioner, and has extensive experience in pain management and possesses expertise as a care provider in this field. She is a member of the American Society of Pain Management Nurses. |
 |
Margaret O’Keeffee, RNc, MSN, FNP Margaret has over 25 years experience working in intensive care, coronary care, open heart, diagnostic imaging and home care in diversified international health care environments. She earned her RN diploma from St. Vincents Hospital in Dublin, Ireland, and her MSN from Saginaw Valley State University in Saginaw, MI. She is board certified as a nurse practitioner with additional board certification in pain management. She is a member of the American Academy of Nurse Practitioners, Michigan Council of Nurse Practitioners, and the American Society of Pain Management Nurses. |
 |
V. Ann Holman, RN. FNP-BC Ann has over 23 years experience in nursing, with 18 of those as an operating room nurse. She received her undergraduate degree from Alcorn State University in Lorman, MS. She earned her Master's in Science Degree as a Family Nurse Practitioner with a Post Master's Certificate in Nursing Education from Saginaw Valley State University. She is an elected representative to the Board of Directors for Blue Care Network Health Insurance, East Region. She is also a member of the Michigan Council for Nurse Practitioners, American Association of Nurse Practitioners and the Association of Operating Room Nurses. |
 |
Carolyn Leadholm-Wittke, RNc, MSN, FNP Carolyn received her undergraduate degrees in nursing at Delta College and at Saginaw Valley State University. As a RN she worked extensively in radiation oncology with over 16 years experience. She received her Masters of Science in Nursing from the University of Michigan, Ann Arbor, and is board certified in Family Practice, with a second board certificate in Pain Management. She has a special interest in managing malignant pain and is part of the intrathecal pump program at Matrix. She participates in speaking engagements to the community on pain related topics. |