Browse Health
Gastroenterologist (digestive)
38 years of experience
Video profile
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

2.5
  • Currently 2.5 of 4 stars
(2)
Patient comments (1)

The overall average patient rating of Dr. John Kniaz is Good. Dr. Kniaz has been reviewed by 2 patients who have provided 1 comments. The rating is 2.5 out of 4 stars.

Patient Ratings
Ease of Appointment 4.0
  • Currently 4 of 4 stars
Promptness 3.0
  • Currently 3 of 4 stars
Courteous Staff 4.0
  • Currently 4 of 4 stars
Accurate Diagnosis 4.0
  • Currently 4 of 4 stars
Bedside Manner 4.0
  • Currently 4 of 4 stars
Spends Time with Me 4.0
  • Currently 4 of 4 stars
Follows Up After Visit 3.0
  • Currently 3 of 4 stars

Specialties & Research

  • He has special expertise in 3 areas:
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Colonoscopy
  • Gastroscopy

Education & Awards

Dr. Kniaz graduated from Philadelphia College of Osteopathic Medicine.


Affiliations

Dr. Kniaz has 20 hospital affiliations:

  • St. Catherine Hospital 
  • Illiana Surgery & Medical Center Llc 

Languages

  • English

Similar doctors nearby

Dr. David Herbstman

Gastroenterology
29 years experience
Munster, IN

Dr. Joel Cahan

Internal Medicine
28 years experience
Munster, IN

Dr. Omar Khan

Gastroenterology
5 years experience
Munster, IN

Dr. Mark Efrusy

Gastroenterology
40 years experience
Munster, IN

Dr. Carol Noetzel

Internal Medicine
32 years experience
Munster, IN

Dr. Ilwoong Chang

Internal Medicine
44 years experience
Munster, IN
Search All Similar Doctors
Additional Information
Dr. John Leonard Kniaz DO is a male Internist, has 38 years of experience and practices in Gastroenterology.
Where does Dr. John L. Kniaz practice?
Dr. John Kniaz has 2 office locations.
Dr. John Kniaz practices Gastroenterology near Munster, IN.
Additional practice locations include: Olympia Fields, IL.
See Munster Gastroenterologists.