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With more than 400 providers and 2,000+ skilled employees across the state of Wisconsin, Prevea Health makes it easy to find the right physician for you and your family. Our highly-trained doctors understand that every patient is different and their focus is on helping every individual achieve their personal goals for a lifetime of good health and happiness.

When searching for the right doctor for you and your family at Prevea Health, you will likely notice some of our doctors have a (MD) or a (DO) listed after their name. This refers to the most common type of credentialing or degrees earned by doctors practicing medicine in the United States.

Prevea is also the home of two Family Medicine Residency Programs, in Eau Claire and Green Bay, Wisconsin.  Resident Physicians have a medical degree (MD, DO) – signifying the completion of medical school. During medical school, in addition to advanced science coursework, medical students complete two years of direct patient care in multiple medical specialties.

Other providers within our healthcare system with thousands of hours of medical training, advanced degrees and certifications from the state include nurse practitioners, physician assistants and midwives.

Mary Williams, CNM

Certified Nurse Midwife
Welcoming New Patients
Gender: Female
Language(s) Spoken: English
I believe there are many ways to manage a woman's health care, and enjoy talking with women about their unique situations and lifestyles.
It is important for me to invest time with my patients so they feel empowered and comfortable asking questions about their health care. I encourage patients to take an active role in their care and have found working together to develop a plan that meets their needs makes for a stronger, healthier and happier woman."

Prevea Oconto Falls Medical Services Building

853 S. Main St.
Oconto Falls , Wisconsin 54154

Prevea Allouez Health Center

1821 S. Webster Ave.
Green Bay , Wisconsin 54301

Prevea St. Mary's Health Center

1860 Shawano Ave.
Green Bay , Wisconsin 54303

Prevea Grand Chute Health Center

3750 N. Investors Court
Grand Chute , Wisconsin 54913
  • OB/GYN care​
  • Midwifery care
  • Well woman care for all ages
  • Contraception management, including IUD placement and Nexplanon®
  • Postpartum care
  • Breastfeeding and lactation consultation
  • Menopause
  • STDs and vaginal issues
Education: Master of Science in Nursing, Nurse-Midwifery, Frontier Nursing University, Ky.
Certifications: Certified Nurse Midwife, American Midwifery Certification Board
American College of Nurse-Midwives
The rating you see is an average of all patient survey responses for this provider. Find out more about our survey and how ratings are calculated.

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