Dr. John Abad, MD

Dr. John Abad, MD

Surgical Oncology  ·  

Accepting new patients

Dr. John Abad, MD is a surgical oncology specialist in Warrenville, IL and has been practicing for 16 years. He specializes in surgical oncology.

Northwestern Medicine Regional Medical Group

4405 Weaver Pkwy

Warrenville, IL 60555
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Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield of Illinois
  • Cigna
  • Cigna-HealthSpring
  • CorVel
  • Coventry Health Care
  • First Health (Coventry Health Care)
  • HealthLink
  • HFN
  • Humana
  • LifeSynch
  • Medicaid
  • MultiPlan
  • UniCare

Learn about Dr. Abad

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you.


Top Care Areas

See how frequently Dr. Abad performs your care needs compared to other doctors.

Colorectal Cancer
more than 82% of peers
more than 83% of peers
Anal Disorders
more than 80% of peers

Dr. Abad's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

Care Philosophy

This content was provided by Dr. Abad ""Better people means better experiences. Our care team is committed to delivering results that change lives.""

1  Specialties

  • Surgical Oncology

1  Board Certifications

  • General Surgery
    Accredited by: American Board of Medical Specialties*

81  Conditions Treated


Read Less

Background Check

0 Malpractice Claims

No malpractice history found for Illinois.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Northwestern University Feinberg School of Medicine
    Medical School | Graduated 2002
  • National Naval Medical Center
    Internship Hospital | Completed
  • Indiana University / School of Medicine
    Residency Hospital | Completed
  • National Naval Medical Center
    Residency Hospital | Completed
  • National Institutes of Health
    Fellowship Hospital | Completed
  • University of Texas MD Anderson Cancer Center
    Fellowship Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Abad has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Abad does not have any memberships or affiliations listed. If you are Dr. Abad and would like to add memberships or affiliations, please update your profile.

Dr. Abad's Reviews

Likelihood of recommending Dr. Abad to family and friends
12 total reviews (6 have comments)

Likelihood to Recommend (12)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Abad's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    Under 10 minutes

Patient Comments (6)

Dr. Abad is treating our brother, a pancreatic cancer survivor of over 5 years. It did reoccur last fall and Dr. Abad has my brother’s total confidence. He successfully removed the tumor in a very complex surgery because of the altered gastro configuration from my brother’s original life-saving...more
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He is an excellent Dr. He is also a warm and caring human being which reflects down to his staff who are excellent too. He is respected and admired by his peers and staff. He is a good man.
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Quite simple Dr Abad follows the hipocrattic OATH, Northwestern is more interested in the MONEY.(rumor has it that he's leaving could that be the reason) Dr. Abad is a unique Doctor in today's world of emotionally illerate Doctors.He did a remarkable surgery for me and made feel that I could trust...more
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Dr Abad is extremely professional, understanding, patient, takes time with you, doesn't rush through anything and explains procedures, etc in detail; listens to your questions and genuinely nice person! I highly recommend him!
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Dr Abad came highly recommended from my internist for a large liver tumor. I felt quite confident in him after meeting him and having him explain what the surgery and recovery. He is kind, caring, compassionate and focused. He patiently listened to my questions and answered them. His staff has...more
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