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

Thomas R Berentsen, MD

Individual provider Sleep Medicine (Psychiatry & Neurology) Physician · NPI 1477593036

Thomas R Berentsen, MD is a Neurology in Janesville, Wisconsin. Graduated from University of Wisconsin School of Medicine in 1977, 49 years ago. Practices with Orthopedic and Spine Centers of Wisconsin SC, a 25-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
49
Trained at
University of Wisconsin School of Medicine
Licensed in
WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

3200 E Racine St
Janesville, WI 53546-2343
Phone: (608) 371-8000
Fax: (608) 371-8008
Show map & directions

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

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 23622-020 (WI)
Sleep Medicine (Psychiatry & Neurology) Physician Taxonomy 2084S0012X · Licence 23622-020 (WI)

Record details

NPI number1477593036
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 8, 2006
Last updated in NPPESNovember 3, 2020
Certification dateNovember 3, 2020
Mailing address3200 E Racine St, Janesville, WI 53546-2343

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Also practisesSLEEP MEDICINE
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 1977 (49 years in practice)
Group practice Orthopedic And Spine Centers Of Wisconsin Sc — 25 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare