THOMAS R BERENTSEN MD
NPI 1477593036
Psychiatry & Neurology - Neurology in Janesville, WI
About Thomas R Berentsen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS R BERENTSEN MD (NPI 1477593036) is an individual neurology provider in Janesville, Wisconsin, licensed in Wisconsin (23622-020) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Ssm Health St Mary's Hospital - Janesville, and is a graduate of University Of Wisconsin School Of Medicine (1977).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Thomas R Berentsen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Thomas Berentsen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Madison, WI 53713
- Reassigned Medicare billing, Wisconsin enrollment
- 20 clinicians in this Medicare group
Madison, WI 53715
- Reassigned Medicare billing, Wisconsin enrollment
- 1,377 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm Health St Mary's Hospital - Janesville
Acute Care Hospitals · Janesville, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53546 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Thomas Berentsen's NPI number?
The NPI number for Thomas Berentsen is 1477593036. It was assigned to this individual provider in the NPPES registry on June 8, 2006.
Where is Thomas Berentsen located?
Thomas Berentsen practices at 3200 E Racine St, Janesville, WI 53546. The listed phone number is (608) 371-8000.
What is Thomas Berentsen's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Thomas Berentsen enrolled in Medicare?
Yes. Thomas Berentsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Thomas Berentsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Berentsen reassigns Medicare benefits to 2 organizations: Orthopedic & Spine Centers Of Wisconsin, Sc. (Madison, WI) and Dean Health Systems, Inc (Madison, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Thomas Berentsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Berentsen accept?
Health plans from Anthem Blue Cross and Blue Shield, CareSource (Common Ground Healthcare), Group Health Cooperative-SCW, Network Health and Security Health Plan list Thomas Berentsen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Thomas Berentsen affiliated with any hospitals?
According to CMS data, Thomas Berentsen is affiliated with Ssm Health St Mary's Hospital - Janesville.
When was this NPI record last updated?
The NPPES record for Thomas Berentsen was last updated on November 3, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.