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

Dr. Dennis Thum

Individual provider Urology Physician · NPI 1245619543

Dr. Dennis Thum is an Urology in Sioux Falls, South Dakota. Graduated from Northwestern University Feinberg Medical School in 2013, 13 years ago. Practices with Sanford Health Network, a 364-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
13
Trained at
Northwestern University Feinberg Medical School
Licensed in
SD
In the registry since
2015

Practice location Address checks out

201 W 69th St
Sioux Falls, SD 57108
Phone: (605) 336-0635
Fax: (605) 271-0543
Show map & directions

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

Specialties & licences

Urology Physician (primary) Taxonomy 208800000X · Licence 11021 (SD)

Record details

NPI number1245619543
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMay 20, 2015
Last updated in NPPESJuly 17, 2018
Mailing address201 W 69th St, Sioux Falls, SD 57108-2403

Medicare enrollment

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

Medicare specialtyUROLOGY
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 2013 (13 years in practice)
Group practice Sanford Health Network — 364 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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