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Dr. Alexander Tosiou, MD

Dr. Alexander Tosiou, MD

Age 54 Gastroenterology M
(14) 14 reviews

New Patient

(847) 773-0690

Current Patient

Show number (847) 535-6083

Dr. Alexander Tosiou, MD is a gastroenterology specialist in Grayslake, IL. Dr. Tosiou completed a residency at Evanston Northwestern Healthcare. He currently practices at Northwestern Medicine Gastroenterology Grayslake Outpatient Center and is affiliated with Northwestern Medicine Lake Forest Hospital. He accepts multiple insurance plans. Dr. Tosiou is board certified in Gastroenterology.


New Patient? (847) 773-0690
  1. Northwestern Medicine Gastroenterology Grayslake Outpatient Center

    1. 1
      Northwestern Medicine Gastroenterology Grayslake Outpatient Center - Pavilion A
      1475 E Belvidere Rd Ste 301, Grayslake, IL 60030 Call
      Existing Patients: (847) 535-6083
      New Patients:
      (847) 773-0690


  • Northwestern University Feinberg School Of Medicine, Fellowship Hospital
  • Evanston Northwestern Healthcare, Residency Hospital — 1996
  • Evanston Northwestern Healthcare, Internship Hospital — 1994
  • Loyola University, Undergraduate School — 1989

Insurance Accepted

  • Aetna
  • Anthem
  • Anthem Blue Cross Blue Shield
  • Beech Street (Multiplan)
  • Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • Cofinity
  • Coventry Health Care
  • Coventry Health Care of Illinois
  • First Health (Coventry Health Care)
  • Galaxy Health Network
  • HAP Insurance
  • Health Alliance
  • HealthLink
  • HealthSmart - Interplan Health Group
  • HFN
  • Humana
  • Imagine Health
  • MultiPlan
  • UnitedHealthCare
  • Worker's Compensation

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Very pleasant Dr. Highly recommend.
Natalie — May 12, 2021
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Photo: Dr. Alexander Tosiou, MD
Dr. Alexander Tosiou, MD
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Dr. Tosiou's Office & Staff

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Hospital Affiliations

  • Northwestern Medicine Lake Forest Hospital

Frequently Asked Questions

Dr. Tosiou frequently treats Esophageal Disorders and Gastrointestinal Disorders.