Doctor profile · Federal record

Dr. Bret Borowski, M.D.

Anesthesiology Physician (CMS: Anesthesiology) · West Allis, WI

  • NPI 1659354629
  • Accepts Medicare
  • 37 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8901 W Lincoln Ave
West Allis, WI 532272409
(414) 328-6000
Mailing address
225 S Executive Dr
Brookfield, WI 530054266

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
November 24, 2021
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Wisconsin #31874-020
Medicaid
WI #31932800

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659354629. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
28
Distinct HCPCS
2
Medicare allowed
$1,929
HCPCS Description Services Patients Avg allowed
00811 Anesthesia for other procedure on large bowel using an endoscope 15 15 $67
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 13 13 $72

In context: peer comparison

Among 10 peers in this city , average services per provider: 16. This provider delivers 1.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Bret Borowski's medical specialty?
Dr. Bret Borowski practices Anesthesiology Physician in West Allis, WI.
Where does Dr. Bret Borowski practice?
Dr. Bret Borowski practices at 8901 W Lincoln Ave, West Allis, WI 532272409. Office phone: 4143286000.
What is Dr. Bret Borowski's NPI?
Dr. Bret Borowski's National Provider Identifier (NPI) is 1659354629, issued by NPPES.
Does Dr. Bret Borowski accept Medicare assignment?
Yes. Dr. Bret Borowski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Bret Borowski commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731). Source: CMS Medicare Physician & Other Practitioners file.