NPPES file of Aug 9, 2026

Mariusz A. Olszewski, M.D.

Diagnostic Radiology Physician · Ardmore, PA

Mariusz A. Olszewski, M.D. is a diagnostic radiology physician with a practice address in Ardmore, Pennsylvania, and NPI 1538147830, issued on Jan 6, 2006. Check the license (Pennsylvania MD477613, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1538147830
Name
Mariusz A. Olszewski
Credential
M.D.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
MD477613 PA
036131442 IL
Self-reported in NPPES; status is on the state search
Practice location
22 Llanfair RD Unit 6, Ardmore, PA 19003
Phone
(203) 903-2982
Enumerated
Jan 6, 2006
Record last updated
Apr 27, 2026
Medicare enrollment
Enrolled (PECOS I20200110001126); may accept Medicare assignment
Medical or professional school
Uniformed Services Uhs Fe Hebert School Of Med, 2004
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 22 Llanfair RD Unit 6

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mustafa Alhasan, MBBSDiagnostic Radiology Physician1629457890
  2. Sonal Arjuna, M.D.Diagnostic Radiology Physician1760685077
  3. Turki Dhayihi, M.DStudent in an Organized Health Care Education/Training Program1154716538
  4. Arjun Kalyanpur, M.D.Diagnostic Radiology Physician1376528315
  5. Tuan Nguyen, M.D.Diagnostic Radiology Physician1477660983
  6. Sultan Yahya, MDDiagnostic Radiology Physician1285554279

Verify Mariusz A. Olszewski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD477613    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through 12 group practices

  1. Bridgeport Radiological Associates LLCChicago, IL
  2. Diagnostic Radiology Associates LLCLake Forest, IL
  3. Health Services OF Central GeorgiaMilledgeville, GA
  4. Imaging Subspecialists OF North Jersey LLCLake Forest, IL
  5. Methodist Associates IN Healthcare, IncAbington, PA
  6. Midstate Radiology Associates LLCCoronado, CA
  7. Peace Health Partners, PCTeaneck, NJ
  8. Rwjbh Observation Associates LLCLake Forest, IL
  9. Southern New Hampshire Radiology Consultants PCLake Forest, IL
  10. Umass Memorial Medical Group IncLake Forest, IL
  11. Umass Memorial Radiology Phys ServMilford, MA
  12. University OF Penn - Medical GroupPhiladelphia, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

7 diagnostic radiology physician records list a practice address in Ardmore

They are 7 of the 284 NPPES records with a practice address in Ardmore, and 2,199 diagnostic radiology physician records in Pennsylvania.

All 7 in Ardmore → All 2,199 in Pennsylvania → Every provider in Ardmore →

Other diagnostic radiology physician records in Pennsylvania

  1. Andrea AbbottPhiladelphia, PA1316268444
  2. Marvin Abdalah, MDMcKeesport, PA1902868615
  3. Selwan AbdullahWilkes Barre, PA1801214325
  4. Mariam Aboian, M.D., PH.D.Philadelphia, PA1356669386
  5. Omar Abousoud, MDPaoli, PA1457642019
  6. Jesty Abraham, DOPhiladelphia, PA1417118373
  7. Joanathan Abrahams, MDJohnstown, PA1629129374
  8. Gordon AbramsPittsburgh, PA1063484491
  9. Gunsel Acikgoz, MDPhiladelphia, PA1225062334
  10. Michael Acord, MDPhiladelphia, PA1457677007

Common questions

What is Mariusz A. Olszewski, M.D.'s NPI number?

Mariusz A. Olszewski, M.D.'s National Provider Identifier (NPI) is 1538147830, issued on Jan 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mariusz A. Olszewski, M.D. located?

The NPPES record lists a practice address at 22 Llanfair RD Unit 6, Ardmore, PA, 19003. Phone: (203) 903-2982. Providers update this record themselves, so call before visiting.

How can I verify Mariusz A. Olszewski, M.D.'s license?

NPPES lists Pennsylvania license number MD477613, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.