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Dr. John Madigan, DO

Dr. John Madigan, DO

Age 45 Nephrology M
(7) 7 reviews
Accepting New Patients


Dr. John Madigan, DO is a nephrology specialist in Millburn, NJ. Dr. Madigan completed a residency at Newark Beth Israel Medical Center. He currently practices at Associates in Internal Medicine & Nephrology and is affiliated with Saint Barnabas Medical Center. He accepts multiple insurance plans. Dr. Madigan is board certified in Nephrology.


  • Newark Beth Israel Medical Center, Residency Hospital
  • Newark Beth Israel Medical Center, Internship Hospital
  • Fellow Of The American College Of Physicians (Facp), Other Education — 2013
  • Newark Beth Israel Medical Center, Fellowship Hospital — 2007

Insurance Accepted

  • Aetna
  • Amerigroup (Wellpoint)
  • Amerihealth
  • Anthem
  • Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • Commercial Insurance Company
  • Coventry Health Care
  • EmblemHealth
  • Health Net
  • HealthFirst
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana
  • Locals (any local)
  • Medicaid
  • MultiPlan
  • Oxford Health Plans
  • QualCare
  • UnitedHealthCare

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  1. Associates in Internal Medicine & Nephrology

    1. 1
      Associates in Internal Medicine & Nephrology PC
      225 Millburn Ave Ste 209, Millburn, NJ 07041 Existing Patients: 973-891-2964

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I don't know what to say about this amazing doctor. my mother-in law has been seeing Dr. Madigan since last year. He takes the time to talk to us and explore different alternatives. He treats her like a family member. It does not matter what time you call, night and day, he will return your call the same day. He shows concern about his patients. he goes above and beyond his call of duty Dr. Madigan may God bless you and your family.
— Apr 18, 2018
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Dr. John Madigan, DO
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Frequently Asked Questions

Dr. Madigan frequently treats Hyperkalemia, Acidosis, and Anemia.  

Hospital Affiliations

  • Saint Barnabas Medical Center
  • East Orange General Hospital
  • Newark Beth Israel Medical Center
  • Overlook Medical Center