Dempster Therapeutic Services

Speech Therapy
  • Address: 9950 Lawrence Ave | Schiller Park, IL 60176
  • Rating: 5.00 (12 reviews)
  • Ages Served: 1 - 14

About Dempster Therapeutic Services

Dempster Therapeutic Services offers personalized speech therapy for a range of communication challenges, including articulation, stuttering, and language delays. Our bilingual therapists (Polish-English) serve Chicago and suburbs, with convenient in-person and online options. We are a trusted provider for Early Intervention and school-age children and hold a top spot for “Polski Logopeda” “Early Intervention Illinois” “Early Intervention” and “Illinois Early Intervention” searches. Our highly qualified team, led by bilingual speech-language pathologist Andrzej Lewandowski (Polish & English), uses proven methods to ensure effective communication. Contact us today for a consultation. We do not accept insurance. #speechtherapy #logopeda

Accreditations

Claimed Profile

This provider has submitted proof of credentials and has claimed their profile.

ASHA Certified

This provider has been certified by the American Speech-Language-Hearing Association

Conditions Supported

  • checked iconLanguage Delays
  • checked iconSpeech Sound Disorders
  • checked iconSpecific Language Impairment
  • checked iconSocial Pragmatics/ Social Language Delays

Care Settings

  • in-officeIn-office
  • Virtual

Age Ranges Served

  • person icon1 - 14

Leadership

  • person iconAndrzej Lewandowski MHS MA CCC-SLP PEL

Founding Story

Andrzej Lewandowski, MHS, MA, CCC-SLP, PEL

Bilingual Speech-Language Pathologist

Dempster Therapeutic Services was founded with a singular vision: to provide exceptional, personalized speech and language therapy to children in the Chicago area, with special attention to serving our vibrant Polish-speaking community.

Andrzej Lewandowski is a highly recommended, skilled bilingual Speech-Language Pathologist (SLP) who has dedicated his career to helping children overcome communication challenges. With extensive training and experience in both English and Polish language development, Andrzej brings a unique perspective to therapy that honors each child's cultural and linguistic background.

What sets Andrzej apart is not just his clinical expertise, but his genuine passion for helping every child reach their full communication potential. Parents consistently praise his patience, dedication, and ability to create tailored therapy approaches that respect each child's individuality while achieving meaningful progress.

Board Certifications

  • Certification badgeCertificate of Clinical Competence (CCC) from the American Speech-Language-Hearing Association (ASHA)

Education and Training

  • Education badgeCertificate of Clinical Competence as a Speech Pathologist from the American Speech-Language and Hearing Association
  • Education badgeGovernors State University Speech Pathology Program (MHS)
  • Education badgeStanford University - Center for Continuing Medical Education
  • Education badgeUSU Speech Pathology (BS)
  • Education badgeNortheastern Illinois University Linguistics (MA)
  • Education badgeAkademia im. Jakuba z Paradyza (BA)

Provider's Gender

  • maleMale

Waiting List Length

(Updated: 01/26/2026)
hour glass icon orangeSpeech Therapy:
1 WeekAM1 WeekPM

Languages

  • English
  • Language iconPolish

Insurance Carriers Accepted

Please note that without member information we cannot guarantee that your specific plan covers these services. We recommend asking the care provider before beginning services.

  • Private Pay

9950 Lawrence Ave,IL,60176

Get in Contact

  • 847-999-3990
  • info@dempstertherapeuticservices.com

Reviews

5.00
12 Reviews
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Reviews

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5.00
(12 Reviews)
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Beaming Review

My brother receives speech therapy at Dempster Therapeutic Services, and we couldn’t be happier with the care and support he’s received. From day one, the staff has been incredibly kind, patient, and professional. They’ve taken the time to really get to know him and tailor sessions to meet his unique needs. We’ve seen progress in a short amount of time- not just in his communication skills, but also in his confidence. It’s clear that everyone here truly cares about their clients. I’m so grateful we found Dempster Therapeutic Services, and I’d highly recommend them to any family looking for quality, compassionate speech therapy services.
Explains things wellExplains things well
Great peopleGreat people
Quality careQuality care
Great bedside mannerGreat bedside manner
Easy to scheduleEasy to schedule
Highly responsiveHighly responsive
Received servicesReceived services
OliviaChild age: 11 years old
June 7, 2026
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Beaming Review

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.
Explains things wellExplains things well
Helpful to parentsHelpful to parents
Experienced with special needsExperienced with special needs
Sensory friendlySensory friendly
Great bedside mannerGreat bedside manner
Quality careQuality care
Great peopleGreat people
Easy to scheduleEasy to schedule
Highly responsiveHighly responsive
Received servicesReceived services
AnetaChild age: 4 years old
May 17, 2026
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Beaming Review

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 began her journey here with a significant speech delay. In just four months, the transformation has been remarkable—she has moved from minimal communication to speaking in clear, simple sentences. The therapists here don’t just "provide a service"; they offer a bespoke roadmap for your child’s success. The facility is top-tier, the staff is highly professional, and the results speak for themselves. If you are looking for a clinic that mirrors the high standards of North Shore families while providing warm, individualized attention, this is it.
Explains things wellExplains things well
Great peopleGreat people
Helpful to parentsHelpful to parents
Great bedside mannerGreat bedside manner
Experienced with special needsExperienced with special needs
Sensory friendlySensory friendly
Easy to scheduleEasy to schedule
Received servicesReceived services
RobertChild age: 2 years old
May 10, 2026
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Beaming Review

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.
Experienced with special needsExperienced with special needs
Easy to scheduleEasy to schedule
Helpful to parentsHelpful to parents
Great bedside mannerGreat bedside manner
Sensory friendlySensory friendly
Highly responsiveHighly responsive
Received servicesReceived services
DorothyChild age: 4 years old
May 3, 2026
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Beaming Review

Mr. Andrzej Lewandowski is a very nice, experienced and qualified speech therapist in Chicago. In the pre-therapy conversation, I told him about my son’s disorder and he gave me more information than the doctor did! Mr. Andrzej is professional, each visit is different and interesting for my son, he is never bored and loves him, and the most important thing is that I can see the results; my son started to communicate better with us since he started therapy. I sincerely recommend Mr. Andrzej Lewandowski and Dempster Therapeutic Services!
Easy to scheduleEasy to schedule
Helpful to parentsHelpful to parents
Great bedside mannerGreat bedside manner
Experienced with special needsExperienced with special needs
Sensory friendlySensory friendly
Explains things wellExplains things well
Received servicesReceived services
NataliaChild age: 3 years old
April 28, 2026
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Beaming Review

Words cannot describe how satisfied my family and I am with the Speech Therapy services my son has received from Andrzej Lewandowski. Andrzej is very knowledgeable in his field and it definitely shows in his ability to diagnose and in coming up with different strategies to help his specific diagnoses and needs. Andrzej is very kind, patient, and personable and is amazing at keeping my son engaged by centering therapy around play and across various platforms. My son's speech has progressed tremendously since starting Speech Therapy and continues to do so daily. I know my son would not have come this far if it wasn't for the help and guidance of Andrzej. 🙏❤️8
Experienced with special needsExperienced with special needs
Helpful to parentsHelpful to parents
Easy to scheduleEasy to schedule
Highly responsiveHighly responsive
Received servicesReceived services
MaraChild age: 2 years old
April 19, 2026
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Beaming Review

I would love to recommend therapy at Dempster Therapeutic Service! Mr. Andrzej Lewandowski is a great specialist. He establishes an amazing relationship with the child, creates a nice and stress-free atmosphere, and encourages the child to exercise (which quickly brings results). The therapy takes place in very comfortable conditions (the office is clean and beautiful).
Explains things wellExplains things well
Experienced with special needsExperienced with special needs
Great bedside mannerGreat bedside manner
Helpful to parentsHelpful to parents
Easy to scheduleEasy to schedule
Highly responsiveHighly responsive
Sensory friendlySensory friendly
Quality careQuality care
Received servicesReceived services
AgataChild age: 4 years old
April 16, 2026
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Beaming Review

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! As a bilingual family—my wife is Polish, so Polish is our second language at home—it was vital for us to find someone who truly understands that dynamic. Andrzej and his team are fully bilingual, and their expertise in supporting a child raised in a bilingual environment has made all the difference.
Highly responsiveHighly responsive
Explains things wellExplains things well
Great peopleGreat people
Easy to scheduleEasy to schedule
Helpful to parentsHelpful to parents
Great bedside mannerGreat bedside manner
Experienced with special needsExperienced with special needs
Quality careQuality care
Received servicesReceived services
AdamChild age: 3 years old
March 21, 2026
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Beaming Review

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. As a bilingual speech therapist, he has a specialized gift for connecting with children. Our daughter has gone from not speaking to using words and even full phrases to express her needs! We are still continuing our sessions with Mr. Lewandowski, and it is amazing to see her gaining new skills every single time she has speech therapy. On a practical note, the clinic accepts HSA.
Highly responsiveHighly responsive
Quality careQuality care
Explains things wellExplains things well
Easy to scheduleEasy to schedule
Experienced with special needsExperienced with special needs
Helpful to parentsHelpful to parents
Received servicesReceived services
Dominika A.Child age: 3 years old
January 25, 2026
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Beaming Review

Mr. Lewandowski is an excellent and well-respected bilingual English Polish speaking speech therapist. He is extremely attentive during therapy sessions with clients and he tailors all activities to meet his clients needs and interests. Additionally, he is able to identify speech delays and areas of concern early on during evaluations, where he focuses on using client’s strengths to build up their weaknesses and to increase engagement during sessions. Mr. Lewandowski’s work helps his clients build communication skills and a strong language foundation to support their successes in school settings and in their future. I am impressed with Mr. Lewandowski’s personalized strategies he utilizes during therapy and the opportunities he has given me to be a part of the therapy process. I have seen the rapid progress in clients due to the effectiveness of Mr. Lewandowski’s work. I am also thoroughly impressed by Mr. Lewandowski’s ability to provide accurate referrals to additional specialists.
Highly responsiveHighly responsive
Explains things wellExplains things well
Great peopleGreat people
Easy to scheduleEasy to schedule
Experienced with special needsExperienced with special needs
Helpful to parentsHelpful to parents
Quality careQuality care
Great bedside mannerGreat bedside manner
Sensory friendlySensory friendly
Received servicesReceived services
Anonymous
December 31, 2025
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Beaming Review

Excellent speech therapy services near Chicago. An amazing speech therapy clinic in a brand new Schiller Park building. We especially liked how quickly we were scheduled for the first visit - 3 days after we called! Plus, Mr. Andrzej Lewandowski is a bilingual speech pathologist, which is great for a bilingual family like ours. And our preschooler is making progress.
Highly responsiveHighly responsive
Easy to scheduleEasy to schedule
Helpful to parentsHelpful to parents
Great bedside mannerGreat bedside manner
Experienced with special needsExperienced with special needs
Quality careQuality care
Sensory friendlySensory friendly
Explains things wellExplains things well
Received servicesReceived services
Marzena ZChild age: 2 years old
December 30, 2025
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Beaming Review

Choosing Dempster Therapeutic Services was the single best decision we made for our son's speech development. Our experience, which began several years ago, exceeded all expectations, and the results have been truly transformative. We initially chose Dempster based on the strong, consistent recommendations from top professionals, including the Polish speaking ENT, Dr. Hurtuk, and several trusted preschool teachers. Our son was fortunate to work with Andrzej Lewandowski, an exceptional bilingual (English/Polish) Speech-Language Pathologist. Andrzej is not 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. Now he is in a general education classroom.
Quality careQuality care
Experienced with special needsExperienced with special needs
Highly responsiveHighly responsive
Great bedside mannerGreat bedside manner
Received servicesReceived services
NataliaChild age: 3 years old
October 14, 2025

Frequently Asked Questions