Placeholder Photo for Jaroslaw P. Siwik, MD

Dr. Jaroslaw Siwik is an allergist / immunologist treating patients near Portage that suffer from allergies and other diseases affecting the immune system.


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Bronson Internal Medicine - W. Centre Ave. (A department of Bronson Methodist Hospital)  

Accepting New Patients?

Yes, Dr. Jaroslaw P. Siwik is accepting new patients at this office.


2600 W. Centre, Portage, MI 49024

Office Details

Doctor Specialties Allergy / Immunology & Internal Medicine
Accepting New Patients? Yes
Practice Specialty Multi Specialty
Health System Bronson Healthcare
Languages Spoken

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Insurance Accepted  

  • Aetna
  • Cigna
  • Cofinity
  • Great West Health Care
  • Healthnet
  • HealthSmart
  • Medicaid
  • Medicare
  • Please contact the office
  • Priority Health
  • Self-pay
  • Tricare
  • United Healthcare
  • Other

About Dr. Siwik
Dr. Siwik



Dr. Jaroslaw Siwik graduated from Wayne State University School of Medicine in 1997.

Dr. Siwik has one office in Michigan where he specializes in Allergy / Immunology and Internal Medicine.

Dr. Siwik works with five doctors including Dr. Todd White and Dr. Heidi Griggs.


Education & Training  


Hospital Affiliations

  • Bronson Methodist Hospital
  • Borgess Medical Center
  • Three Rivers Health
  • Bronson Lakeview Hospital
  • Bronson Battle Creek Hospital

Languages Spoken  

  • English
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