Overview
Jacob Ollech is a Gastroenterologist in Chicago, Illinois. Dr. Ollech is highly rated in 8 conditions, according to our data. His top areas of expertise are Viral Gastroenteritis, Colitis, Radiation Enteritis, Ileostomy, and Endoscopy.
His clinical research consists of co-authoring 72 peer reviewed articles. MediFind looks at clinical research from the past 15 years.
Insurance
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Locations
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
John Pandolfino is a Gastroenterologist in Chicago, Illinois. Dr. Pandolfino has been practicing medicine for over 33 years is highly rated in 19 conditions, according to our data. His top areas of expertise are Achalasia, Gastroesophageal Reflux Disease (GERD), Swallowing Difficulty, Endoscopy, and Colonoscopy.
Peter Kahrilas is a Gastroenterologist in Chicago, Illinois. Dr. Kahrilas has been practicing medicine for over 47 years is highly rated in 18 conditions, according to our data. His top areas of expertise are Achalasia, Gastroesophageal Reflux Disease (GERD), Heartburn, Endoscopy, and Gastrectomy.
Nirmala Gonsalves is a Gastroenterologist in Chicago, Illinois. Dr. Gonsalves has been practicing medicine for over 27 years is highly rated in 12 conditions, according to our data. Her top areas of expertise are Esophagitis, Eosinophilic Esophagitis, Gastritis, Viral Gastroenteritis, and Endoscopy.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Elite
- Viral GastroenteritisDr. Ollech isElite. Learn about Viral Gastroenteritis.
- Distinguished
- ColitisDr. Ollech isDistinguished. Learn about Colitis.
- Crohn's DiseaseDr. Ollech isDistinguished. Learn about Crohn's Disease.
- Hemorrhagic ProctocolitisDr. Ollech isDistinguished. Learn about Hemorrhagic Proctocolitis.
- Radiation EnteritisDr. Ollech isDistinguished. Learn about Radiation Enteritis.
- Ulcerative ColitisDr. Ollech isDistinguished. Learn about Ulcerative Colitis.
- Advanced
- IleostomyDr. Ollech isAdvanced. Learn about Ileostomy.
- Toxic MegacolonDr. Ollech isAdvanced. Learn about Toxic Megacolon.
- Experienced
- Celiac DiseaseDr. Ollech isExperienced. Learn about Celiac Disease.
- ColonoscopyDr. Ollech isExperienced. Learn about Colonoscopy.
- EndoscopyDr. Ollech isExperienced. Learn about Endoscopy.
- MalabsorptionDr. Ollech isExperienced. Learn about Malabsorption.
- MalnutritionDr. Ollech isExperienced. Learn about Malnutrition.
- Pseudomembranous ColitisDr. Ollech isExperienced. Learn about Pseudomembranous Colitis.

