Cara C. O'Brien, MD

Assistant Professor


  • Froedtert Hospital
  • Internal Medicine - Froedtert Hospital Specialty Clinics
  • WISH Program - Froedtert Urology
  • Zablocki VA Medical Center


  • Geriatric Medicine
  • Internal Medicine


  • English

Established Patients Call

WISH Program - Urology - Froedtert Hospital


  • MD - Doctor of Medicine



  • Assistant Program Director, Med-Ger Residency and Fellowship

Dr. Cara O’Brien joined the Division of Geriatrics at the Medical College of Wisconsin in July 2018. She completed her residency and geriatrics fellowship from MCW through the Medicine-Geriatrics combined Residency-Fellowship program in 2018. She graduated with her Medical Degree from the University of Illinois College of Medicine at Peoria in Peoria, IL and graduated with her Bachelor of Arts from Northwestern University in Evanston, IL. Dr. O’Brien currently practices in the Geriatrics and Internal Medicine Clinic at Froedtert Hospital, the Geriatrics Red Clinic at the Clement J. Zablocki VA Medical Center, and at Harwood Place in Wauwatosa, WI.