Home/Providers/Emergency Medicine/William Ranum

William Ranum, MD

Emergency Medicine, Family Medicine

4.9 out of 5 –

SSM Health Dean Medical Group

1300 S. Century Ave. Waunakee, WI 53597

William Ranum is a board certified family medicine physician. He obtained his undergraduate degree from the University of Wisconsin-Madison and earned his medical degree from the University of Wisconsin School of Medicine and Public Health-Madison. He completed his internship and residency at the University of Wisconsin - SSM Health St. Mary's Hospital-Madison.

Ranum's practice is focused on continuity of care and obstetrical care. He provides low-risk prenatal care until 32 weeks - no deliveries.

Dr. Ranum is board certified by the American Board of Family Medicine.

About Me

Reviews

Rating Breakdown

Reviews are measured on a scale of 1 to 5, with 5 being the best score.

Question Breakdown
4.9
Overall Experience
5.0
Listened Carefully
4.9
Explained Things Clearly
4.9
Knew Medical History
4.9
Involved in Care Decisions
5.0
Showed Courtesy & Respect

Patient Reviews

SSM Health only displays patient satisfaction data for providers included in our survey process and who have a minimum of 30 returned surveys. The overall rating is an average of all responses to the survey questions listed below. The ratings and comments submitted by patients reflect their own views and opinions. Patient identities are withheld to ensure confidentiality and privacy. Learn more about our survey.

4.9 out of 5

170 ratings,

82 reviews

8/20/2026

I can’t say enough wonderful things about Dr. Ranum. I’ve been his patient for over 30 years, and there is truly no one I would trust more with my care. He is everything you hope for in a doctor—knowledgeable, thorough, compassionate, patient, and genuinely invested in the people he cares for. He listens. He never makes you feel rushed or dismissed, and he takes the time to figure things out, even when you show up with something a little unusual! 😊 After more than three decades, he knows me incredibly well, and there is such a comfort in having a doctor who knows your history and truly knows you as a person. His combination of experience, intuition, kindness, and humor is something very special. I feel incredibly fortunate to have had him as my doctor for all these years. Thirty-plus years of consistently exceptional care says more than any five-star review ever could. He is simply the absolute best, and I couldn’t recommend him more highly.

8/20/2026

I am very sorry to hear that Dr. Ranum may be retiring. This will be a huge loss to our community

8/11/2026

He is the best doctor.

8/9/2026

He is kind, caring, makes you feel like you are his only patient. Answers all my questions and does not hurry or make me feel rushed. He is the best Dr.

8/7/2026

The way SSMH treated my doctor was so bad and when he leaves I will follow him. I will not seek any other medical treatment from any other doctor except him