Public provider listing

Courtney Iwersen, APN

4.8(20)

Courtney Iwersen, APN is a Gastroenterologist practice in Oak Park, IL. Rated 4.8 from 20 public reviews. Phone and website are listed.

Address

1100 Lake St Ste 150, Oak Park, IL 60301
Oak Park, IL 60301

Verified listing details

Credentials, affiliations, and coverage

Checked Aug 27, 2026

Sources

Federal data is attributed to its source and does not imply CMS endorsement.

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Up to 10

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Public reviews

Newest reviews

Up to 10

Gerald Noah

4.0

No written review was provided.

Nick Zayed

5.0

No written review was provided.

Latasha Lewis

5.0

No written review was provided.

Shirley Brown

5.0

No written review was provided.

Carol Leffler

5.0

Unbelievable! Courtney is amazing! She is extremely knowledgeable, kind and compassionate with her patients. Her expertise in GI is top of the line! I would highly recommend Courtney and this practice to any patients who are looking for excellent GI services!

Maria

5.0

Awesome doctor. Listens to all your concerns and makes sure youre well taken care of

Julie Cross

5.0

No written review was provided.

O Zapata

2.0

She’s nice and welcoming. However I explained my GI problems and wasn’t referred to getting HIDA scan or Endoscopy. It’s been 3 months and a general surgeon scheduled me for gallbladder removal instead! Just because you don’t NEED your gallbladder doesn’t mean you can get it removed after tiny polyps are found. I’ve transferred to NM where they found surgery wasn’t necessary and ENDOSCOPY & HIDA scan were needed before doing any surgery. I’m in disbelief Kosik is even allowed to schedule surgery’s without performing necessary test. I’ve vegged for months for the test to see if I have stomach problems to no avail. After being scheduled for surgery FIRST that was the last straw. How does that even make sense. I wonder if these doctors/surgerons have their gallbladders considering they scheduled me within 10 min of meeting me to remove mine. How detrimental it would be to live without my gallbladder knowing there was nothing wrong with it. But nobody at Elmhurst GI or Kosik would know because I wasn’t tested to begin with.

melody white

5.0

No written review was provided.

evelyn parker

4.0

No written review was provided.

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