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“A knowledgeable, professional and friendly speech therapist in Chicago”

Mr. Lewandowski is very knowledgeable, professional and friendly. Very well-done assessment on my child with speech issues. Highly recommend working with him.

Daria S. 03/09/2025

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“My son can talk now!”

I decided to take my son to see Andrzej Lewandowski in Dempster Therapeutic Services after hearing very good reviews from other parents, and I’m pleased with the progress so far. My sons communication skills have improved significantly. We are able to go to the park now and he is not afraid to socialize with kids. What I really like about this therapist is that the sessions are in dual language so he teaches him in English and in Polish and I am very happy about that.

A. P. 05/17/2026

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“Best Chicago speech therapy services”

I highly recommend Dempster Therapeutic Services. Andrzej Lewandowski has been instrumental in helping my son overcome speech delays and become proficient in both Polish and English. Their tailored therapy sessions effectively address articulation, vocabulary building, and sentence formation, ensuring comprehensive language growth. We've experienced exceptional results and are extremely satisfied with their services.

Dorota D. 05/03/2026

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“We brought our daughter to Dempster.”

We brought our daughter to Dempster Therapeutic Services when she was 3.5 years old. We had initially hoped she would start speaking once she began daycare, but when that didn't happen, we knew we needed professional support. One of the most impressive things was the speed of care—we only waited 9 days for our first appointment, which included a full evaluation and diagnosis.
After just four months of working with Mr. Andrzej Lewandowski, the transformation has been incredible.

Dominika A. 01/24/2026

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“The best Chicago speech therapy clinic”

Andrzej is more than just a speech therapist; he genuinely became an indispensable part of our family. His dedication was unparalleled—he consistently went the extra mile to customize his approach and ensure our son felt supported and motivated.
The progress our son achieved was nothing short of miraculous. Starting from being almost three and virtually nonverbal, he progressed to speaking in full, functional sentences in just 15 months. Today, he thrives in a regular kindergarten classroom.

Natalia W. 09/30/2025

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“Don't wait until your child is 3 years old.”

I waited until my son turned three, hoping that he would start talking on his own. When he still wasn’t speaking, I realized it was time to do something about it and started looking for a speech therapist online. I was very lucky to find Mr. Andrzej Lewandowski – not only is he an excellent therapist with wonderful reviews, but he is also bilingual in Polish and English, which is a huge advantage for our family. His office is very close to our home, so we booked our first visit right away.
My so

Gabi S. 09/23/2026

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“Unmatched Clinical Excellence and a Truly Personalized Experience For Chicago Area Speech Therapy”

As a parent with high expectations for our daughter's developmental care, finding Dempster Therapeutic Services has been a game-changer. We travel 30 minutes from Kenilworth each way, and I can say without hesitation that the caliber of care is well worth the commute.
What sets this clinic apart is the balance of an elite, sophisticated clinical environment with a deeply personal, boutique feel. Our 2.5-year-old daughter

Robert R. W. 05/12/2026

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“Elite-level speech therapy near Chicago”

If you are looking for elite-level speech therapy, look no further than Andrzej Lewandowski at Dempster Therapeutic Services.
When our son turned two, we hoped that starting daycare would help him develop his speech and catch up, but that didn't happen. Finding the right support became our top priority, and I am so glad we found this clinic. The registration process was an absolute breeze, and I was incredibly impressed that we got our first visit scheduled just 6 days after registering online!

Adam P. 03/20/2026

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“An amazing Chicago speech therapy clinic.”

An amazing speech therapy clinic near Chicago. A bilingual speech therapy clinic. Mr Andrzej Lewandowski is a great bilingual speech therapist, great with kids. And his student is great too!

M. Z. 12/30/2025

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“Recommend for effective bilingual (Polish -English) speech therapy in Chicago or Schiller Park.”

Recommend for effective bilingual (Polish -English) speech therapy in Chicago or Schiller Park. Mr. Andrzej Lewandowski genuinely cares about his patients and helps them succeed.

Sylwia W. 04/23/2025

Dempster Therapeutic Services

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Specialties

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Accepted Insurance

Reviews

Office & Staff Evaluation

Dempster Therapeutic Services

Address

Summary

Photos

Main Specialties

Map

Staff

Specialties

Practice Specialties

Medical Specialties

Accepted Insurance

Accepted Insurance

Reviews

Office & Staff Evaluation

Review by Daria S. on March 09, 2025 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ A knowledgeable, professional and friendly speech therapist in Chicago ”

Review by A. P. on May 17, 2026 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ My son can talk now! ”

Review by Dorota D. on May 03, 2026 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ Best Chicago speech therapy services ”

Review by Dominika A. on January 24, 2026 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ We brought our daughter to Dempster. ”

Review by Natalia W. on September 30, 2025 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ The best Chicago speech therapy clinic ”

Review by Gabi S. on September 23, 2026 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ Don't wait until your child is 3 years old. ”

Review by Robert R. W. on May 12, 2026 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ Unmatched Clinical Excellence and a Truly Personalized Experience For Chicago Area Speech Therapy ”

Review by Adam P. on March 20, 2026 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ Elite-level speech therapy near Chicago ”

Review by M. Z. on December 30, 2025 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ An amazing Chicago speech therapy clinic. ”

Review by Sylwia W. on April 23, 2025 -

Office & Staff Evaluation

Practice Evaluation

Provider Evaluation

Comment - “ Recommend for effective bilingual (Polish -English) speech therapy in Chicago or Schiller Park. ”