Doctor profile · Federal record

Dr. Marc-Antoine Tremblay, M.D.

Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Adult Reconstructive Orthopaedic Surgery Physician · West Allis, WI

  • NPI 1558892232
  • Accepts Medicare
  • 9 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2424 S 90Th St Ste 500
West Allis, WI 532272464
(414) 321-2255
Additional location
8901 West Lincoln Ave
West Allis, WI 53227
(414) 328-6000
fax (414) 805-7499
Mailing address
Po Box 735044
Chicago, IL 606735044

Credentials & registration

NPPES · NUCC
NPI registered
March 2017 — 9 yrs on file
Profile last updated
October 11, 2023
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207X00000X — NUCC code
State license (1)
Wisconsin #70073
Medicaid
WI #100082222

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558892232. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
24
Distinct HCPCS
2
Medicare allowed
$3,352
HCPCS Description Services Patients Avg allowed
99204 New patient office or other outpatient visit, 45-59 minutes 13 13 $156
99214 Established patient office or other outpatient visit, 30-39 minutes 11 11 $120

In context: peer comparison

Among 3 peers in West Allis Orthopaedic Surgery Physician, average services per provider: 216. This provider delivers 0.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
14
Patients
0
Total drug cost
$706
Drug Type Claims Patients Total cost
Celecoxib Generic 14 0 $706

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Marc-Antoine Tremblay's medical specialty?
Dr. Marc-Antoine Tremblay practices Orthopaedic Surgery Physician in West Allis, WI.
Where does Dr. Marc-Antoine Tremblay practice?
Dr. Marc-Antoine Tremblay practices at 2424 S 90Th St Ste 500, West Allis, WI 532272464. Office phone: 4143212255.
What is Dr. Marc-Antoine Tremblay's NPI?
Dr. Marc-Antoine Tremblay's National Provider Identifier (NPI) is 1558892232, issued by NPPES.
Does Dr. Marc-Antoine Tremblay accept Medicare assignment?
Yes. Dr. Marc-Antoine Tremblay accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marc-Antoine Tremblay commonly perform?
Top Medicare-reported procedures in 2023: New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.