Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Steven Charles Gasiewicz, MD

Individual provider Emergency Medicine Physician · NPI 1457303521

Steven Charles Gasiewicz, MD practises Emergency Medicine in Cheektowaga, New York. Graduated from University of Texas Medical School at San Antonio in 1998, 28 years ago. Practices with Mary Imogene Bassett Hospital, a 779-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
28
Trained at
University of Texas Medical School at San Antonio
Licensed in
NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2605 Harlem Road St Joseph's Hospital
Cheektowaga, NY 14225
Phone: (716) 204-4500
Fax: (716) 204-4501
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 211527 (NY)
Emergency Medical Services (Emergency Medicine) Physician Taxonomy 207PE0004X · Licence 211527-1 (NY)

Record details

NPI number1457303521
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2006
Last updated in NPPESAugust 16, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO
Graduated 1998 (28 years in practice)
Group practice Mary Imogene Bassett Hospital — 779 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients91
Services billed 103 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mary Imogene Bassett Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 779 clinicians in the practice; 12 are shown here.

Other providers in Cheektowaga