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

William Sideras, PA-C

Individual provider Physician Assistant · NPI 1700429040

William Sideras, PA-C is a Physician Assistant in Calumet Park, Illinois. Graduated from Southern Illinois University School of Medicine in 2019, 7 years ago. Practices with Midwest Express Care 2, Inc, a 219-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
7
Trained at
Southern Illinois University School of Medicine
Licensed in
IL
In the registry since
2019
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

See every abbreviation used in this directory →

Practice location Address checks out

12850 S Ashland Ave
Calumet Park, IL 60827-6308
Phone: (630) 581-5372
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 085.007284 (IL)

Record details

NPI number1700429040
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedOctober 18, 2019
Last updated in NPPESFebruary 15, 2023
Certification dateFebruary 15, 2023
Mailing address12850 S Ashland Ave, Calumet Park, IL 60827-6308

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolSOUTHERN ILLINOIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Midwest Express Care 2, Inc — 219 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations9 on file with Medicare