Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William S Stevens, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1548241250

William S Stevens, MD is a Thoracic Surgery in Springfield, Illinois. Graduated from Medical University of South Carolina College of Medicine in 1982, 44 years ago. Practices with SIU Physicians and Surgeons Inc, a 316-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
44
Trained at
Medical University of South Carolina College of Medicine
Licensed in
IL
In the registry since
2005
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

619 E Mason St Ste 3P25
Springfield, IL 62701-1034
Phone: (217) 545-7600
Fax: (217) 545-2552
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 036083480 (IL)

Record details

NPI number1548241250
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 9, 2005
Last updated in NPPESDecember 7, 2020
Certification dateDecember 7, 2020
Mailing addressPo Box 19684, Springfield, IL 62794-9684

Medicare enrollment

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

Medicare specialtyTHORACIC SURGERY
Medical schoolMEDICAL UNIVERSITY OF SOUTH CAROLINA COLLEGE OF MEDICINE
Graduated 1982 (44 years in practice)
Group practice Siu Physicians And Surgeons Inc — 316 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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