Marc-Antoine Tremblay, M.D.
NPI 1558892232 · Orthopaedic Surgery Physician · West Allis, WI
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc-Antoine Tremblay, M.D. is a Orthopaedic Surgery Physician provider in West Allis, WI (NPI 1558892232).
Provider details
- NPI number
- 1558892232
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 70073 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
229 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 80 | $115 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 60 | $156 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 46 | $67 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 24 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 19 | $85 |
Typical Medicare-allowed amounts for these services range $67–$156 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Meloxicam | 30 | 17 |
| Gabapentin | 22 | — |
| Celecoxib | 17 | — |
| Methylprednisolone | 15 | 15 |
| Tizanidine Hcl | 15 | 11 |
| Oxycodone Hcl | 12 | — |
| Amoxicillin | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 8901 West Lincoln AveWest Allis, WI 53227Phone: (414) 328-6000Fax: (414) 805-7499
Registry dates
- Enumerated
- 2017-03-23
- Last updated
- 2023-10-11
- Certified
- 2023-10-11
Frequently asked questions
- What is Marc-Antoine Tremblay's NPI number?
- Marc-Antoine Tremblay's National Provider Identifier (NPI) is 1558892232, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc-Antoine Tremblay's specialty?
- Marc-Antoine Tremblay is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Marc-Antoine Tremblay located?
- Marc-Antoine Tremblay's practice location on file with NPPES is 2424 S 90th St Ste 500, West Allis, WI 53227-2464.
- What is Marc-Antoine Tremblay's phone number?
- The practice phone number listed in the NPPES registry for Marc-Antoine Tremblay is (414) 321-2255.
- Does Marc-Antoine Tremblay accept Medicare?
- Marc-Antoine Tremblay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc-Antoine Tremblay's NPI active?
- Yes — Marc-Antoine Tremblay's NPI (1558892232) is active in the NPPES registry as of the last update on 2023-10-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.