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

John B Alexis, MD

Individual provider Emergency Medicine Physician · NPI 1689608713

John B Alexis, MD is an Emergency Medicine in Berwyn, Illinois. Graduated from Northwestern University Feinberg Medical School in 1995, 31 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
31
Trained at
Northwestern University Feinberg Medical School
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

3249 Oak Park Ave
Berwyn, IL 60402-3429
Phone: (708) 783-9100
Show map & directions

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

Additional practice locations (1)

  • 2635 Church Rd Ste 101, Aurora, IL 60502-8943 — (630) 938-6000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036-096475 (IL)

Record details

NPI number1689608713
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 11, 2006
Last updated in NPPESMay 23, 2025
Certification dateMay 23, 2025
Mailing address662 Easton Ln, Elk Grove Village, IL 60007-7833

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolNORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL
Graduated 1995 (31 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

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