Mariusz Olszewski, M.D.
NPI 1538147830 · Diagnostic Radiology Physician · Ardmore, PA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariusz Olszewski, M.D. is a Diagnostic Radiology Physician provider in Ardmore, PA (NPI 1538147830).
Provider details
- NPI number
- 1538147830
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036131442 (IL)
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
20 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
3,047 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, 2 Views71046 | 298 | $10 |
| Ct Scan Head Or Brain Without Contrast70450 | 294 | $40 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 211 | $86 |
| X-Ray of Chest, 1 View71045 | 192 | $9 |
| Ct Scan of Chest Without Contrast71250 | 138 | $51 |
| Ct Scan of Chest With Contrast71260 | 120 | $55 |
| Ct Scan of Abdomen and Pelvis Without Contrast |
Practice location
Mailing address
Additional practice locations (5)
- 1000 N Westmoreland RdLake Forest, IL 60045-1658Phone: (847) 535-6300Fax: (847) 535-7836
- 68a Main StMedway, MA 02053-1775Phone: (508) 488-3635
- 14 Prospect StMilford, MA 01757-3003Phone: (508) 473-1190
- 55 Lake Ave NWorcester, MA 01655-0002Phone: (508) 334-3850
- 3400 Spruce StreetPhiladelphia, PA 19104-4206Phone: (215) 662-3000Fax: (215) 662-7011
Registry dates
- Enumerated
- 2006-01-06
- Last updated
- 2026-04-27
- Certified
- 2026-04-27
Frequently asked questions
- What is Mariusz Olszewski's NPI number?
- Mariusz Olszewski's National Provider Identifier (NPI) is 1538147830, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariusz Olszewski's specialty?
- Mariusz Olszewski is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Mariusz Olszewski located?
- Mariusz Olszewski's practice location on file with NPPES is 22 Llanfair Rd Unit 6, Ardmore, PA 19003-2320.
- What is Mariusz Olszewski's phone number?
- The practice phone number listed in the NPPES registry for Mariusz Olszewski is (203) 903-2982.
- Does Mariusz Olszewski accept Medicare?
- Mariusz Olszewski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariusz Olszewski's NPI active?
- Yes — Mariusz Olszewski's NPI (1538147830) is active in the NPPES registry as of the last update on 2026-04-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.