Dr. Alexander Tosiou, MD

Dr. Alexander Tosiou, MD

GastroenterologyMale

Gastroenterology

Dr. Alexander Tosiou, MD is a Gastroenterology Specialist in Grayslake, IL. Dr. Tosiou has extensive experience in Esophageal Disorders and Gastrointestinal Disorders. He is affiliated with Northwestern Medicine Lake Forest Hospital. His office accepts new patients.

Locations

Northwestern Medicine Gastroenterology Grayslake Outpatient Center

1
New Patient?
(847) 260-7897

Northwestern Grayslake Outpatient Care Center

Northwestern Medical Group800 N Westmoreland Rd Ste 100 Lake Forest, IL 60045
2
New Patient?
(847) 260-7897

Hospital Highlight

Dr. Tosiou is affiliated with Northwestern Medicine Lake Forest Hospital Lake Forest, a highly rated hospital.

At a Glance

  • Explains Conditions Well Patients said this doctor explains conditions well. See reviews
  • Practices at Top Hospital Outstanding Patient Experience Award™ See hospitals
  • Hospital Satisfaction Patients said they were highly satisfied at this doctor's hospital. See hospitals

More Gastroenterology Specialists at Northwestern Medicine Gastroenterology Grayslake Outpatient Center

Dr. Tosiou's Reviews

Likelihood to recommend Dr. Tosiou

3.9

Based on 14 ratings

5 Stars
71.42857142857143%
(10)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
0%
(0)
1 Star
28.571428571428573%
(4)
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Dr. Tosiou
What went well
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RecentHighestLowestMost Helpful
Reply
Had upper endoscopy which revealed a problem. Said I needed a surgical.procedure (which turned out to be true). He wanted me to get this series of procedures in downtown Chicago. Told him I didn't want to travel that far. He said I should, claiming this surgeon has done this procedure countless times, and the nearby surgeons had only done a few of these and are not as skilled at this. Told him I wanted to look into it. Then I get a call from the downtown surgeon's office saying I needed to schedule with him. Then I learned that one of his own associates in the practice does these and has done many of them. So I scheduled with him and had a series of operations that turned out great.
What went well
  • Staff friendliness
What could be improved
  • Didn't trust the provider's decisions
Helpful
Jul 31, 2021
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Reply
Very pleasant Dr. Highly recommend.
Helpful
Natalie – May 12, 2021
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Reply
Seemed like a nice person, BUT... Went in for a routine colonoscopy, was bruised internally during the procedure, & ended up in the hospital 2 days later w/ severe abdominal pain. Now paying off my $5K worth of co-insurance for my day's stay at the hospital (which is where his office directed me). I liked this facility and had an excellent prior experience there (different Dr), but this whole experience was expensive & aggravating (w/ a $300 office bill on top for him to tell me he bruised me).
What went well
No results
What could be improved
  • Appointment was rushed
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
5 people found this helpful
Helpful
IL – Oct 29, 2018
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Reply
He's straight forward and direct. That may put some people off, but I'd rather know what I'm dealing with and how easily fixed.
What went well
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
Helpful
MG in North Chicago, IL – Sep 28, 2016
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Reply
Dr. Tosseou has horrible communication skills with patient and patients family. He never called once when test results came back; leaving me to interpret them myself from the online report. Also, he should not talk about patient when just receiving anesthsia and still fully awake. Dr. Tosseou has good skills with procedures, but horrible bedside skills.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
What could be improved
  • Appointment was rushed
  • Didn't listen or answer questions
  • Didn't explain conditions well
6 people found this helpful
Helpful
Lake Villa, IL – Jul 21, 2016
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Reply
Very thorough before starting treating me for Hep C. During treatment, monitored me very closely, actually saw him every two weeks during treatment. Due to his care, been Hep C free for over 10 years.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Suzanne M. Caley in Round Lake Park, IL – Apr 15, 2016
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Reply
Great he is very pleasant. Takes time for all the issues. He was very respectful of my nursing background and not condescending discussed med history. Had good discussion about RX, procedures and prognosis r/t to my complicated list of problems I appreciated his honest approach without any sugar coating as per my liking in a MD. He is a very caring and impathic individual. He is a keeper and understood my sense of humor. I will enjoy working with him
What went well
  • Office environment
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Mary hodge in Waukegan il – Feb 25, 2016
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Experience and Background Checks

Experience
Background

Background Check

No malpractice claims found for Illinois
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
Learn more about background checks

Frequently Treated by Dr. Tosiou

Based on treatment records, we have identified the following as areas of care that Dr. Tosiou treats more often than their peers. If you are unsure whether Dr. Tosiou treats other conditions, please contact the office at (847) 535-6083.

Esophageal Disorders

Esophageal disorder specialists diagnose and treat conditions affecting the esophagus, such as reflux esophagitis, indigestion, and esophageal ulcers through procedures including medication, surgery, and swallowing therapy.Compare with other Esophageal Disorders specialists.

Dr. Tosiou is experienced in the area of Esophageal Disorders. See the graph below to learn more about his experience.

Based on claims data for 19 conditions and procedures

Treatments
Dr. Tosiou
Similar Providers
Esophagitis
Reflux Esophagitis
Dysphagia
Hiatal Hernia
Normal
Frequency
High
Frequency
Very High
Frequency

Gastrointestinal Disorders

Gastrointestinal disorders specialists diagnose and treat conditions that affect the gastrointestinal tract, including Crohn's disease, ulcers, hernias, and food poisoning.Compare with other Gastrointestinal Disorders specialists.

Dr. Tosiou is experienced in the area of Gastrointestinal Disorders. See the graph below to learn more about his experience.

Based on claims data for 52 conditions and procedures

Treatments
Dr. Tosiou
Similar Providers
Hemorrhoids
Gastroesophageal Reflux Disease (GERD)
Gastritis
Esophagitis
Normal
Frequency
High
Frequency
Very High
Frequency

Check Dr. Tosiou's experience treating your condition or procedure

Dr. Tosiou's conditions and procedures:

  • Abdominal Pain
  • Acidosis
  • Acute Deep Vein Thrombosis (DVT)
  • Acute Venous Embolism Thrombosis
  • ADHD and-or ADD
  • Alkalosis
  • All Headaches (incl. Migraine)
  • Allergic Rhinitis
  • Anal or Rectal Pain
  • Anemia
  • Animal Allergies
  • Anxiety
  • Arthritis
  • Arthritis of the Elbow
  • Asthma
  • Asymptomatic Post-Menopausal Status
  • Ataxia
  • Atherosclerosis
  • Back Pain
  • Barrett's Esophagus
  • Bedsores
  • Benign Chronic Pain Syndrome
  • Benign Neoplasm of the Digestive System
  • Bladder Infection
  • Blood in Urine (Hematuria)
  • Calcium Metabolism Disorders
  • Candidiasis of Skin and Nails
  • Celiac Disease
  • Cellulitis
  • Chest Pain
  • Chronic Fatigue Syndrome
  • Chronic Neck Pain
  • Chronic Pain
  • Cirrhosis
  • Colon Cancer Screening
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • Colorectal Cancer Screening
  • Constipation
  • COPD (Chronic Obstructive Pulmonary Disease)
  • Cough
  • Crohn's Disease
  • Deep Vein Thrombosis (DVT)
  • Dehydration
  • Dermatitis
  • Diabetes Counseling
  • Diabetes Mellitus, Secondary
  • Diabetes Type 1
  • Diabetes Type 2
  • Diabetes With Renal Manifestations
  • Diabetic Polyneuropathy
  • Diaphragmatic and-or Hiatal Hernia
  • Diarrhea
  • Difficulty With Walking
  • Diffuse Esophageal Spasm
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Dizziness
  • Duodenal Polypectomy
  • Duodenal Ulcer
  • Duodenitis
  • Dysentery
  • Dyslipidemia
  • Dysphagia
  • Electrocardiogram (EKG)
  • Emphysema
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • Enlarged Prostate (BPH)
  • Enteritis
  • Eosinophilic Esophagitis
  • Esophageal Diverticulum
  • Esophageal Motility Disorders
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Essential Tremor
  • Familial Adenomatous Polyposis
  • Fecal Occult Blood Test for Colorectal Cancer
  • Fibromyalgia
  • Food Allergy
  • Gait Abnormality
  • Gallbladder Scan
  • Gallstones
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Malabsorption
  • Gastroparesis
  • Genital Warts
  • Gout
  • Hair Loss
  • Headache
  • Heart Disease
  • Heartburn
  • Hemochromatosis
  • Hemorrhoids
  • Hepatitis A Screening
  • Hepatitis B - Immune Response
  • Hepatitis B Virus Screening
  • Hepatitis C Virus Screening
  • Hepatitis Screening
  • Hepatorenal Syndrome
  • Hernia
  • Hiatal Hernia
  • Hyperkalemia
  • Hyperlipidemia
  • Hypertension
  • Hypoglycemia
  • Hypokalemia
  • Hypotension
  • Hypotension (Excluding Maternal)
  • Hypothyroidism
  • Ileus
  • Impedance Testing
  • Inflammatory Bowel Disease
  • Insomnia
  • Instrumental Diagnostic Evaluation for Dysphagia
  • Intertrigo
  • Intestinal Obstruction
  • Iodine Deficiency
  • Iron Metabolism Disorders
  • Irritable Bowel Syndrome
  • Ischemic Colitis
  • Itchy Skin
  • Joint Pain
  • Lactose Intolerance
  • Leg and Foot Ulcers
  • Limb Swelling Caused by Fluid Overload
  • Lipid Disorders
  • Liver Damage from Alcohol
  • Liver Function Test
  • Low Back Pain
  • Magnesium Metabolism Disorders
  • Malaise and Fatigue
  • Malnutrition
  • Menopausal and Postmenopausal Disorders
  • Menstrual Disorders (incl. Dysmenorrhea)
  • Migraine
  • Mineral Metabolism Disorders
  • Muscle Spasm
  • Muscle Weakness
  • Nasopharyngitis
  • Nausea
  • Nighttime Urination (Nocturia)
  • Non-Alcoholic Fatty Liver Disease
  • Non-Neonatal Jaundice
  • Noninfectious Gastroenteritis and Colitis
  • Obesity
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Hip and Thigh
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteoarthritis of Spine
  • Osteopenia
  • Osteoporosis
  • Overweight
  • Painful Urination (Dysuria)
  • Pancreatitis
  • Patellofemoral Pain Syndrome or Knee Pain
  • Pericardial Disease
  • pH Probe
  • Phlebitis and Thrombophlebitis
  • Pneumonia
  • Pollen Allergy
  • Polymyalgia Rheumatica (PMR)
  • Polymyositis
  • Polyneuropathy
  • Polyuria
  • Pouchitis
  • Primary Biliary Cholangitis
  • Primary Sclerosing Cholangitis
  • Purpura
  • Radiculopathy (Not Due to Disc Displacement)
  • Reflux Esophagitis
  • Restless Leg Syndrome
  • Rosacea
  • Salivary Gland Cyst
  • Salivary Gland Stones and Inflammation
  • Sciatica (Not Due to Disc Displacement)
  • Screening Colonoscopy
  • Sexually Transmitted Diseases (STDs)
  • Shingles
  • Shortness of Breath
  • Sickle Cell Disease
  • Sinus Tachycardia
  • Sleep Apnea
  • Symptomatic Menopause
  • Thyroid Goiter
  • Tobacco Use Disorder
  • Trigeminal Neuralgia
  • Ulcerative Colitis
  • Ultrasound, Endoanal
  • Ultrasound, Esophageal
  • Unexplained Weight Loss
  • Urinary Incontinence
  • Urinary Stones
  • Urinary Tract Infection (UTI)
  • VAP Lipid Testing
  • Venous Embolism and Thrombosis
  • Venous Insufficiency
  • Vertigo
  • Viral Hepatitis
  • Vitamin B Deficiency
  • Vitamin B12 Deficiency
  • Vitamin D Deficiency
  • Vomiting Disorders
  • Warts
  • Wheezing
  • Wireless pH Testing

Insurance Check

Search for your insurance provider

Dr. Tosiou accepts

Accepted insurance can change. Please double-check when making an appointment.

(847) 260-7897

Dr. Tosiou accepts the following insurance:

Aetna
Aetna Better Health
Aetna Choice (Aetna HealthFund) POS II
Aetna HMO
Aetna Savings Plus of AZ
Aetna Student Health
Aexcel Choice POS
Aexcel Choice POS II
Aexcel Elect Choice (Open Access) EPO
Choice Plus POS II
Elect Choice
Limited Benefits Insurance Plan PPO
Open Access Aetna Select
Open Access Aetna Select (Aetna HealthFund)
Open Access Elect Choice
Premier Care Network
Select
Traditional Choice
Value Performance Network
Voluntary Group Medical Plan
Anthem
National (BlueCard) PPO
Anthem Blue Cross Blue Shield
Anthem Blue Cross Blue Shield PPO
Beech Street (Multiplan)
Blue Cross Blue Shield
Blue Advantage PPO
Blue Card PPO
Blue Choice PPO
Blue HMO
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
Cigna
Choice Fund
Choice Fund Open Access Plus
Cigna EPO
Cigna Healthcare of Illinois HMO
Cigna HMO
Cigna POS
Cigna PPO
Global Health Benefits
LocalPlus
Network POS
Open Access
Open Access Plus
Shared Administration
Cofinity
Coventry Health Care
Coventry Health Care of Illinois
Coventry Health Care of Illinois HMO
Coventry Health Care of Illinois POS
Coventry Health Care of Illinois PPO
Health and Life PPO
First Health (Coventry Health Care)
First Health (Coventry Health Care) PPO
Galaxy Health Network
HAP Insurance
Health Alliance PPO
Health Alliance
HealthLink
HealthLink HMO
HealthLink PPO
HealthSmart - Interplan Health Group
Interplan Health Group
HFN
HFN EPO
HFN PPO
Humana
Choice
Choice Care
Choice Care POS
Commercial EPO
EPO PPO Open Access
HCPS Open Access Coverage EPO
HMO Premier HMO
Humana EPO
National POS
National POS – Open Access POS
National Preferred PPO
Imagine Health
MultiPlan
MultiPlan PPO
UnitedHealthCare
Choice
Choice Plus
Choice Plus PPO
Options
Select Plus Gold PPO
Select Plus HMO
Worker's Compensation
Worker's Compensation WC

About Me

Care Philosophy

"Better people means better experiences. Our care team is committed to delivering results that change lives." 

Specialties

  • Gastroenterology
  • Internal Medicine

Board Certifications

Education

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

Awards

  • Healthgrades Honor Roll
  • Janssen Fellow World Congress of Gastro Scholarship, 1998
  • Alpha Sigma Nu National Jesuit Honor Award, 1994
  • Alpha Epsilon Delta Pre-Medical Honor Society, 1989
  • Maurice M. Nesset Research Award, 1999

Frequently Asked Questions

How can I make an appointment with Dr. Alexander Tosiou, MD?

Click here to schedule an appointment online. New patients can also call (847) 260-7897, and for other questions, call (847) 535-6083.

Is Dr. Alexander Tosiou, MD accepting new patients?

Dr. Alexander Tosiou, MD generally accepts new patients on Healthgrades. You can see Dr. Tosiou's profile to make an appointment.

Does Dr. Alexander Tosiou, MD accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Tosiou accepts your insurance.

What are Dr. Alexander Tosiou, MD's top areas of care?

Dr. Tosiou frequently treats Esophageal Disorders and Gastrointestinal Disorders. See all practice areas where Dr. Tosiou specializes.

Where is Dr. Alexander Tosiou, MD's office located?

Dr. Tosiou's office is located at 1475 E Belvidere Rd Ste 301, Grayslake, IL 60030. Find other locations and directions on Healthgrades.

Does Dr. Alexander Tosiou, MD offer telehealth services?

Dr. Tosiou has not yet indicated whether they offer telehealth services. Please contact the office to check for availability/eligibility.

Affiliated Hospitals

Dr. Tosiou is affiliated with the following hospital. Select the hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

Northwestern Medicine Lake Forest Hospital

Lake Forest, IL

80% Patients that would definitely recommend, 10% higher than the national average

3 Awards Received

Award Highlight: Outstanding Patient Experience Award™ (2022)