Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William H Ranum, MD

Individual provider Family Medicine Physician · NPI 1043267172

William H Ranum, MD is a Family Practice in Waunakee, Wisconsin. Graduated from University of Wisconsin School of Medicine in 1987, 39 years ago. Practices with Dean Health Systems Inc, a 1,184-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
39
Trained at
University of Wisconsin School of Medicine
Licensed in
WI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1300 S Century Ave
Waunakee, WI 53597-2386
Phone: (608) 849-4315
Fax: (608) 850-1606
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 29827-020 (WI)

Record details

NPI number1043267172
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 27, 2006
Last updated in NPPESJune 10, 2021
Certification dateJune 10, 2021
Mailing address1300 S Century Ave, Waunakee, WI 53597-2386

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 1987 (39 years in practice)
Group practice Dean Health Systems Inc — 1184 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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