Mark Stephan, MD
NPI 1578550794 · Diagnostic Radiology Physician · Lafayette, LA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Stephan, MD is a Diagnostic Radiology Physician provider in Lafayette, LA (NPI 1578550794).
Provider details
- NPI number
- 1578550794
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 16703 (LA)
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
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,750 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 1,074 | $8 |
| X-Ray of Chest, 2 Views71046 | 863 | $10 |
| Ct Scan Head Or Brain Without Contrast70450 | 501 | $38 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 297 | $9 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 232 | $82 |
| Ct Scan of Chest Without Contrast71250 | 150 | $49 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-03
- Last updated
- 2007-10-26
Frequently asked questions
- What is Mark Stephan's NPI number?
- Mark Stephan's National Provider Identifier (NPI) is 1578550794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Stephan's specialty?
- Mark Stephan is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Stephan located?
- Mark Stephan's practice location on file with NPPES is 2311 Kaliste Saloom Rd, Lafayette, LA 70508-6807.
- What is Mark Stephan's phone number?
- The practice phone number listed in the NPPES registry for Mark Stephan is (337) 261-5151.
- Does Mark Stephan accept Medicare?
- Mark Stephan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Stephan's NPI active?
- Yes — Mark Stephan's NPI (1578550794) is active in the NPPES registry as of the last update on 2007-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.