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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Nancy Gryniewicz-Sika:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Nancy Gryniewicz-Sika is Excellent. Dr. Gryniewicz-Sika has been reviewed by 13 patients who have provided 3 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
Promptness 4.0
Courteous Staff 4.2
Accurate Diagnosis 4.8
Bedside Manner 4.8
Spends Time with Me 4.6
Follows Up After Visit 4.1

Specialties & Research

  • She has special expertise in 4 areas:
  • Acne (Acne Vulgaris)
  • Diabetes
  • Weight Loss
  • Weight loss (non-surgical)

Education & Awards

Dr. Gryniewicz-Sika graduated from Rush Medical College, Chicago. She has 1 awards.

Compassionate Doctor Recognition (2014)


Dr. Gryniewicz-Sika has 3 hospital affiliations:

  • Macneal Memorial Hospital 
  • Elmhurst Memorial Hospital 
  • MacNeal Hospital 


  • English

> > > > Dr. Nancy Gryniewicz-Sika, MD

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Additional Information
Dr. Nancy Gryniewicz-Sika MD is a female Family Practitioner, has 20 years of experience and practices in Family Medicine.
Where does Dr. Nancy Gryniewicz-Sika practice?
Dr. Nancy Gryniewicz-Sika has 1 office location.
Dr. Nancy Gryniewicz-Sika practices Family Medicine near Oak Park, IL.
See Oak Park Primary Care Doctors.