Derek St Louis, MD
NPI 1467947762 · Diagnostic Radiology Physician · Troy, MI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1467947762
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301115571 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
375 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 86 | $39 |
| X-Ray of Chest, 1 View71045 | 80 | $8 |
| Ct Scan of Upper Spine Without Contrast72125 | 33 | $46 |
| X-Ray of Chest, 2 Views71046 | 32 | $10 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 21 | $70 |
| Mri Scan of Brain Before and After Contrast70553 | 20 | $107 |
Practice location
Mailing address
Additional practice locations (5)
- 221 Michigan St Ne Ste 402Grand Rapids, MI 49503-2538Phone: (616) 391-1929Fax: (616) 391-3130
- 468 Cadieux RdGrosse Pointe, MI 48230-1507Phone: (313) 473-1833
- 36555 26 Mile Rd Ste 1400Lenox, MI 48048-3186Phone: (947) 523-4020
- 36555 26 Mile Rd Ste 3000Lenox, MI 48048-3185Phone: (947) 523-4040
- 3601 W 13 Mile RdRoyal Oak, MI 48073-6712Phone: (248) 898-6509
Registry dates
- Enumerated
- 2018-06-28
- Last updated
- 2024-06-21
- Certified
- 2024-06-21
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.