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Dennis E Rademaker, DO

Dennis E Rademaker, DO

Allergy & Immunology, Pediatrics
Franciscan Physician Network
Languages Spoken
English

The tau symbol represents physicians who are employees of the Franciscan Physician Network, a division of Franciscan Alliance, Inc. All other physicians are independent members of the Medical Staff who choose to practice at a Franciscan Health hospital.

accepting new patients

Franciscan Physician Network Family Wellness Center

9800 Valparaiso Drive
Munster, IN 46321

View hours
Monday
7:30am - 5:00pm
Tuesday
7:30am - 8:00pm
Wednesday
7:30am - 5:00pm
Thursday
7:30am - 8:00pm
Friday
7:30am - 5:00pm
Franciscan Physician Network Family Wellness Center

Franciscan Health Dyer

24 Joliet Street
Dyer, IN 46311

View hours
Sunday
Open 24 hours
Monday
Open 24 hours
Tuesday
Open 24 hours
Wednesday
Open 24 hours
Thursday
Open 24 hours
Friday
Open 24 hours
Saturday
Open 24 hours
Franciscan Health Dyer

Franciscan Health Munster

701 Superior Avenue
Munster, IN 46321

View hours
Sunday
Open 24 hours
Monday
Open 24 hours
Tuesday
Open 24 hours
Wednesday
Open 24 hours
Thursday
Open 24 hours
Friday
Open 24 hours
Saturday
Open 24 hours
Franciscan Health Munster

About Me

Education

Medical School:
Chicago College of Osteopathic Medicine- Midwestern University

Internship:
Chicago College of Osteopathic Medicine- Midwestern University

Residency:
Loyola University Medical Center

Fellowship:
Rush Presbyterian St Luke's Medical Center

Post-Graduate School:
Millikan University

Board Certifications

American Board of Allergy & Immunology

American Board of Pediatrics

Insurances Accepted

  • Aetna
  • Anthem
  • Anthem HIP
  • Anthem Medicaid
  • BCBS IL
  • CareSource
  • Cigna Health Plans
  • Cigna HealthSpring
  • Cofinity
  • Community Health Alliance
  • Department of Labor
  • Devoted Health
  • Franciscan PHO Northern Indiana, LLC.
  • Healthcare Finest Network
  • Humana
  • Humana Medicaid
  • Lutheran Preferred
  • Managed Health Services
  • Managed Health Services MarketPlace
  • Medicaid IL
  • Medicaid IN
  • Medicare IN
  • Medicare Rail Road
  • MultiPlan/PHCS
  • Preferred Network Access
  • Sagamore
  • SIHO
  • Tricare/Humana Military
  • United Health Care
  • United Health Care Medicaid
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Provider Blogs

Housecleaning, Asthma And Allergies

Housecleaning, Asthma And Allergies

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Coping With Pollen Allergies

Coping With Pollen Allergies

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Podcasts

 

Provider Ratings

4.9 out of 5

(193 ratings)

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

108 Reviews

11/22/2025

Dr. Rademaker is great! He’s very thorough, listened to my concerns and explained things about my condition.

11/22/2025

Knowledgeable,personable

11/19/2025

Dr. Rademaker and his team have been my choice for years. I wouldn’t consider going anywhere else.

11/11/2025

Very helpful

11/10/2025

Very pleasant.

11/06/2025

He listens to my concerns and understood what I need

11/01/2025

Doctor is kind and compassionate. He listens and is concerned about my allergies.

10/30/2025

Dr. Rademaker is a kind, caring doctor. He takes time with his patients and listens to their concerns. Dr. Rademaker explains your condition in a way that is understandable.

10/28/2025

Dr. Rademaker easy to talk with and listens to your concerns .

10/28/2025

Great doctor!

10/25/2025

Helped us

10/24/2025

Very professional & courteous.

10/23/2025

He’s a top in his field.

10/21/2025

He listened to my concerns

10/20/2025

Same reasons as stated above very nice friendly wonderful office

10/16/2025

helpful..good explanations

10/15/2025

He was very thorough and professional. Answered all my questions and I thought his advice was right on

10/14/2025

Dr. Rademaker has been my allergist for many years. He worked with my oncologist during my chemo treatments to develop pre-treatments to avoid reactions. He always responds quickly to any messages or emergency.

10/14/2025

The doctor was knowledgeable and genuinely investigated the possibilities of my allergy

10/14/2025

The doctor explained everything to me and simplified terms.

10/14/2025

He’s concerned about his patients.

10/14/2025

Thorough

10/13/2025

Dr. Rademaker is thorough. He listens well, and has a plan of treatment

10/07/2025

He always listens carefully and comes up with a plan of treatment after talking with you. He is careful to research all the options of care. He is thorough and knowledgeable.

10/06/2025

Dr. Rademaker listens to me.

10/02/2025

He always has good suggestions to manage my allergy symptoms.

10/02/2025

Dr. RADEMAKER IS VERY EXPERIENCED.

10/01/2025

Was very cheerful and explained all I needed to know!

09/30/2025

I've been with him a number of years. Never had a problem with his visits. Sometimes he cancels appts and I have to reschedule.

09/30/2025

Dr. Rademaker is a master at this work.

09/30/2025

Thorough, professional, concerned & has a good bed side manner.

09/25/2025

I liked him

09/23/2025

Dr Rademaker is a very professional and caring doctor. He is “The Best Dr Ever!”

09/15/2025

Dr Rademaker is always kind and caring and easy to talk to.

09/15/2025

Dr Rademaker is very knowledgeable and has often referred me to other doctors when he’s suspected I had other issues going on.

09/13/2025

Quality of EXCELLENCE is beyond measure

09/10/2025

Felt very comfortable with his diagnosis and suggestions going forward. Excellent Doctor and I would highly recommend him.

09/03/2025

Very professional & answers all questions.

08/27/2025

Excellent care

08/26/2025

Understanding and thorough

08/25/2025

He is informed.

08/14/2025

It is clear that he is a doctor with a lot of experience.

08/07/2025

He was thorough with a good bedside manner

08/04/2025

Very nice doctor

07/28/2025

Listened and was informative.

07/19/2025

I consider Dr Rademaker to be one of “The Best Physicians Ever!”

07/17/2025

He was very good and attentive

07/15/2025

Doctor Dennis Rademaker is a thoughtful, insightful and professional physician. He knows his field quite well, and gives good advice. He pays close attention to what the patient is telling him.

07/14/2025

Dr. Rademaker is dedicated to your personal care; he is very engaged in your conversation and takes the time to listen and discuss treatment options, etc.

07/09/2025

Dr. Rademaker was very professional and courteous. He explained the allergy testing thoroughly and listened to my concerns. I would highly recommend him.

07/03/2025

I appreciate Dr Radermakers expertise

06/30/2025

VERY PATIENT ANSWERS ALL ?'S

06/22/2025

Dr Rademaker and his team are very professional yet kind and caring. He takes time to listen to his patient and explains everything clearly.

06/17/2025

I love Dr Rademaker, he has always been there for me and gotten me through some rough times.

06/07/2025

Dr. Rademaker has a great bedside manner, listens to you treats you like a person not a number

06/07/2025

Awesome doctor! He was highly recommended by the doctor I work for, Dr. Ahmad Salah.

06/03/2025

He explained everything for me.

05/27/2025

His gift for truly listening gives him an actual advantage. His expertise gives his patients a solid win

05/22/2025

Very personable and explains everything

05/22/2025

Dr Rademaker attentively listens and discusses his diagnosis and treatment with me. If he needs to spend more time, he does.

05/17/2025

Had a different approach than my other allergist

05/10/2025

Because of the care I received

05/09/2025

Best

05/05/2025

He is extremely knowledgeable and caring. He listens, laughs, and we feel safe knowing he's our doctor. If he doesn't know the answer to a question (rare), he finds it.

04/30/2025

He explained everything l needed to know so I understood it

04/30/2025

He always listens to what I have to say.

04/28/2025

Dr. Dennis Rademaker is easy to talk with and listens to what patient has to say about their condition .

04/21/2025

Always receive excellent care from Dr. Rademaker.

04/15/2025

Doctor Rademaker is always on point I cares about his

04/14/2025

Explains thoroughly things that I don’t understand

04/13/2025

I waited over an hour past my scheduled appointment time my first visit. I waited 50 minutes past my scheduled appointment time my second visit. Also, on my second visit the doctor had me watch a video on a possible new medication. He never came back. After waiting another 20 minutes the nurse came in and said the Dr had to leave. I didn’t really get to talk to him. I should get my co-pay money back. Terrible and frustrating. I’ll never return to him.

04/09/2025

Dr. Rademaker is a great listener. He is always concerned about my well-being, and always explains treatment well

04/06/2025

Nice doctor

04/02/2025

He is a very good doctor. He thoroughly listens to what your problem is and finds a solution.

03/30/2025

Very informative and helpful

03/29/2025

Very Professional and a Great Personality.

03/28/2025

Dr. Rademaker is a seasoned professional. He has helped my family for over 20 years with allergies and asthma.

03/27/2025

Dr Rademaker is a Number 1 Physician. He is extremely caring and professional. I am blessed to have him for my Physician.

03/26/2025

Good bedside manner.

03/26/2025

Very knowledgeable & courteous.

03/21/2025

Doctor shows caring attitude

03/20/2025

Dr Rademaker is very knowledgeable and listens to your concerns. He includes his patients in their path of care.

03/19/2025

Caring, knowledgeable

03/18/2025

He is great, caring and always there for me

03/17/2025

Dr. Rademaker and his allergy nurses are the best. They are a well oiled machine and truly care about their patients. I have been a loyal visitor for 33 years and have gotten my life back due to a competent doctor and his respectful and aweseome team. I am grateful for all of them. They listen, are kind, compassionate and extremely helpful. The time of wait is minimal and outstanding communcation from all.

03/07/2025

He always listens and comes back with a treatment plan to help you that is easy to follow and will give you the best results

03/06/2025

He's caring to your issues your having. Doesn't seem to be preoccupied when he's with you. Ask questions and he's ready to give you an answer that you understand. Always feel he has by best interest at hand

02/25/2025

He was very nice explained everything to me

02/17/2025

Dr Rademaker is a very knowledgeable, caring and interactive doctor.

02/06/2025

Very professional

02/06/2025

He’s a good doctor and it’s not his fault they didn’t have the test for me, but I’m disappointed that he couldn’t do anything for me.

02/06/2025

Dr. Rademaker cares about his patients.

01/28/2025

Dr. Rademaker easy to talk to and listens to what you have to say . Off staff courteous and care about you .

01/23/2025

Listens and give information

01/20/2025

Very professional and helpful.

01/18/2025

Dr. R always listens to our concerns and the healthcare that he has provided my son has improved his quality of life! His asthma is now better controlled and life is just better

01/17/2025

Dr Rademaker is a very caring professional doctor

01/15/2025

He's friendly and knows what he's doing.

01/15/2025

Good communicator. Calm demeanor and knowledgeable.

01/13/2025

Professional. Knowledgable. Good communicator.

01/09/2025

He was very warm and I felt comfortable.

01/06/2025

Best Doctor ever

12/31/2024

This was my first visit. Conversation was not rushed and was informative. I'll be more confident in my scoring after my follow up visit and/or any subsequent visits.

12/25/2024

Dr was friendly order follow up tests.

12/21/2024

Concerned provider that you can have a conversation with.

12/18/2024

Intelligent, compassionate, thoughtful, and a good sense of humor.

12/18/2024

Dr. Dennis Rademaker is an extremely caring and great physician.

12/18/2024

He is a Doctor who is very knowledgeable in his field of work
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