Doctor profile · Federal record
Dr. Thomas Berentsen, MD
Neurology Physician (CMS: Neurology) · Sleep Medicine (Psychiatry & Neurology) Physician · Janesville, WI
- NPI 1477593036
- Accepts Medicare
- 49 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3200 E Racine St
Janesville, WI 535462343
(608) 371-8000
fax (608) 371-8008
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- November 3, 2020
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- Wisconsin #23622-020
- Medicaid
- WI #1477593036
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477593036. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
239
Distinct HCPCS
8
Medicare allowed
$36,270
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95886 |
Needle measurement of electrical activity in arm or leg muscles, complete study | 73 | 42 | $94 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 57 | 57 | $203 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 25 | 25 | $158 | |
36415 |
Insertion of needle into vein for collection of blood sample | 20 | 17 | $8 | |
95910 |
Nerve conduction, 7-8 studies | 19 | 19 | $169 | |
95816 |
Measurement of brain wave activity (eeg), awake and drowsy | 18 | 18 | $368 | |
95909 |
Nerve conduction, 5-6 studies | 16 | 16 | $129 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 11 | 11 | $163 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 29. This provider delivers 8.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
311
Patients
51
Total drug cost
$11,400
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levetiracetam | Generic | 44 | 13 | $1,368 |
| Donepezil Hcl | Generic | 39 | 12 | $887 |
| Carbidopa-Levodopa (Carbidopa/Levodopa) | Brand | 33 | 13 | $934 |
| Gabapentin | Generic | 24 | 13 | $910 |
| Memantine Hcl | Generic | 24 | 0 | $1,164 |
| Oxcarbazepine | Generic | 21 | 0 | $797 |
| Clobazam | Generic | 20 | 0 | $1,106 |
| Quetiapine Fumarate | Generic | 18 | 0 | $993 |
| Propranolol Hcl | Generic | 17 | 0 | $644 |
| Topiramate | Generic | 17 | 0 | $291 |
Frequently asked questions
What is Dr. Thomas Berentsen's medical specialty?
Dr. Thomas Berentsen practices Neurology Physician in Janesville, WI.
Where does Dr. Thomas Berentsen practice?
Dr. Thomas Berentsen practices at 3200 E Racine St, Janesville, WI 535462343. Office phone: 6083718000.
What is Dr. Thomas Berentsen's NPI?
Dr. Thomas Berentsen's National Provider Identifier (NPI) is 1477593036, issued by NPPES.
Does Dr. Thomas Berentsen accept Medicare assignment?
Yes. Dr. Thomas Berentsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Berentsen commonly perform?
Top Medicare-reported procedures in 2023: Needle measurement of electrical activity in arm or leg muscles, complete study (HCPCS 95886); New patient office or other outpatient visit (HCPCS 99205); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.