Thomas R. Berentsen, MD
Neurology Physician · Janesville, WI
Thomas R. Berentsen, MD is a neurology physician with a practice address in Janesville, Wisconsin, and NPI 1477593036, issued on Jun 8, 2006. Check the license (Wisconsin 23622-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Thomas R. Berentsen
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 23622-020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3200 E Racine St, Janesville, WI 53546
- Phone
- (608) 371-8000
- Enumerated
- Jun 8, 2006
- Record last updated
- Nov 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (608) 371-8008
- Medicaid ID
- 1477593036 WI
- Medicare enrollment
- Enrolled (PECOS I20100602000092); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 1977
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 399 in Wisconsin → Look up another NPI →
Also registered at 3200 E Racine St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Omar Alnaser, M.D.Pediatrics Physician1396474201
- Jenny Amani, M.D.Occupational Medicine Physician1629212899
- Molly ArttusPhysician Assistant1366233041
- Brittany Austin, PA-CMedical Physician Assistant1013226968
- Timothy Axe, DPMPodiatrist1619932621
- Susan Baird, DNP, APRN, FNP-BCNurse Practitioner1225305758
Verify Thomas R. Berentsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 23622-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average neurology physician in 2024
201 Medicare Part D claims for 80 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Levetiracetam25 claims
- Carbidopa-Levodopa22 claims
- Donepezil Hcl19 claims
- Topiramate19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Dean Health Systems IncJanesville, WI
- Orthopedic And Spine Centers OF Wisconsin SCMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas R. Berentsen among 399 neurology physician records in Wisconsin
Thomas R. Berentsen, MD is one of 399 neurology physician records with a practice address in Wisconsin. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 53% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1977 · median 2005 among the 274 with a school on file
- Record last updated2020 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Wisconsin
There are 399 neurology physician records in Wisconsin.
All 399 in Wisconsin → Every provider in Janesville → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Mark Lanser, MDJanesville, WI 535461275574592
- Monica Simionescu, MDJanesville, WI 535461184776403
- Ross Levine, MDJanesville, WI 535481639141856
- Mustafa Abdul Waheed Mohammed, MDJanesville, WI 535481801358064
- Daniel Orozco, MDJanesville, WI 535481154329399
- Thomas Perry, M.D.Fort Atkinson, WI 535381922280403
- Debasish Bhattacharyya, M.D.Darlington, WI 535301265498778
- M. Murphy, M.D.Middleton, WI 535621932353091
Common questions
What is Thomas R. Berentsen, MD's NPI number?
Thomas R. Berentsen, MD's National Provider Identifier (NPI) is 1477593036, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas R. Berentsen, MD located?
The NPPES record lists a practice address at 3200 E Racine St, Janesville, WI, 53546. Phone: (608) 371-8000. Providers update this record themselves, so call before visiting.
How can I verify Thomas R. Berentsen, MD's license?
NPPES lists Wisconsin license number 23622-020, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas R. Berentsen, MD prescribe under Medicare Part D?
In 2024, Thomas R. Berentsen, MD had 201 Medicare Part D claims for 80 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.