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Dr. John Kniaz, DO
Gastroenterology* Age 81
Dr. John Kniaz, DO
1.0 (1 Ratings)
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Dr. John Kniaz, DO is a Gastroenterologist in Dyer, IN.
Dr. John Kniaz, DO
1.0 (1 Ratings)
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Dr. John Kniaz, DO

Gastroenterology* Age 81
Dyer, IN
Accepting new patients
54 years of experience
Dr. John Kniaz, DO is a Gastroenterologist in Dyer, IN.

About Dr. John Kniaz, DO

Dr. Kniaz graduated from PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE. Dr. John Kniaz, DO is a Gastroenterologist in Dyer, IN and has 54 years experience. Dr. Kniaz's office accepts new patients. Dr. Kniaz accepts multiple insurance plans.

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Experience Check

Enter a condition or procedure
Reflux Esophagitis
Rigid Proctosigmoidoscopy
Manometry
Reflux Esophagitis
Rigid Proctosigmoidoscopy
Manometry
Flexible Sigmoidoscopy
Esophagitis
Gastritis
Inflammatory Bowel Disease
Gastroesophageal Reflux Disease (GERD)
Noninfectious Gastroenteritis and Colitis
Ulcerative Colitis
Chronic Gastritis
Abdominal Pain
Intestinal Diverticulosis
Intestinal Ulcer
Hemorrhoids
Constipation
Alcoholic Cirrhosis
Anal or Rectal Pain
Anemia
  • View other providers who treat Anemia
Autoimmune Hepatitis
Barrett's Esophagus
Benign Neoplasm of the Digestive System
Celiac Disease
Cirrhosis
Colorectal Polyp
Congenital Achalasia
Crohn's Disease
Dehydration
Diaphragmatic and Hiatal Hernia
Diarrhea
  • View other providers who treat Diarrhea
Diffuse Esophageal Spasm
Duodenal Ulcer
Duodenitis
Dysentery
Dysphagia
Enteritis
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Motility Disorders
Esophageal Ulcer
Esophageal Varices
Familial Adenomatous Polyposis
Food Allergy
Gallstones
Gas-Bloat Syndrome
Gastric Ulcer
Gastrointestinal Bleeding
Gastrointestinal Malabsorption
Gastrojejunal Ulcer
Gastroparesis
Gastroptosis
Heartburn
Hepatitis B - Immune Response
Hepatitis C
Hernia
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Hiatal Hernia
Ileus
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Indigestion
Intestinal Diverticulitis
Intestinal Obstruction
Irritable Bowel Syndrome
Ischemic Colitis
Lactose Intolerance
Liver Damage from Alcohol
Mallory-Weiss Syndrome
Malnutrition
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Nausea
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Non-Neonatal Jaundice
Pancreatitis
Peptic Ulcer
Primary Biliary Cholangitis
Unexplained Weight Loss
Viral Enteritis
Viral Hepatitis
Vitamin_Deficiency
Vomiting Disorders
Colon Cancer Screening
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Colorectal Cancer Screening
Duodenal Polypectomy
Endoscopy
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Screening Colonoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Blue Choice Select PPO
  • HealthyBlue Advantage
  • Blue Preferred Plus POS
  • BlueCard PPO

Where Dr. John Kniaz, DO Sees Patients

  1. 1 Eyho Cardiology LLC
    16000 W 101st Ave, Dyer, IN 46311
  2. 2 Dalal Medical Corp.
    9410 Calumet Ave Ste 401, Munster, IN 46321
  3. 3 Munster Primary Care PC
    9731 Prairie Ave, Highland, IN 46322

What Patients Say

Likelihood to recommend Dr. Kniaz
1.0
Based on 1 Reviews
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1 Star (1)

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Patient Reviews
Feb 27, 2018
This guy tells me , all I seen was a little/ so tiny hemroid/ even thou I told him I was gushing blood everyday, he said well use the sith bath, etc bs, I knew something was wrong and no way that was all that was causing my gushing blood, by the way he is rude! He doesn’t listen to what u got to say, so anyways I knew something was wrong so I ended up finding another gi doctor and told him, so he said let’s do another one/today and he found 3 huge hemroids!! Dr kniaz 0star!! Don’t listen to him
— Feb 27, 2018
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Meet Dr. John Kniaz, DO

Specialties*
Gastroenterology
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
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FAQs About Dr. Kniaz's Practice

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. John Kniaz, DO. To arrange an appointment, call the number on Dr. Kniaz's profile.

Dr. John Kniaz, DO is affiliated with Northwestern Medicine Central Dupage Hospital, Community Hospital, Franciscan Health Dyer, Franciscan Health Crown Point and Franciscan Health Munster.

Training & Medical Education
Medical Education
  • PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
    1972
Medical Education

Hospitals Where Dr. John Kniaz, DO Practices

  • Northwestern Medicine Central Dupage Hospital

    25 N Winfield Rd, Winfield, IL

  • Community Hospital

    901 MacArthur Blvd, Munster, IN

  • Franciscan Health Dyer

    24 Joliet St, Dyer, IN

  • Franciscan Health Crown Point

    12750 Saint Francis Dr, Crown Point, IN

  • Franciscan Health Munster

    701 Superior Ave, Munster, IN

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