John A. Charlson, MD

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Medical Oncology
5 (56)
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Associate Professor
Accepting New Patients

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Cancer Center - Froedtert Hospital (414) 805-6800


Diseases & Conditions

Solid Malignancies

Ages Seen


Languages Spoken


Hospital Affiliations

Froedtert Hospital


Cancer Center - Froedtert Hospital
9200 West Wisconsin Avenue
Milwaukee, WI 53226
(866) 680-0505
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Education & Training

Medical College of Wisconsin Affiliated Hospitals - Milwaukee - Fellowship in Oncology - (2005-2007)

Medical College of Wisconsin Affiliated Hospitals - Milwaukee - Residency in Internal Medicine - (1999-2002)

Medical College of Wisconsin Affiliated Hospitals - Milwaukee - Chief Resident - (2002-2003)

University of Iowa - Iowa City - Doctor of Medicine - (1999)

Patient Reviews

The comments are submitted by patients (or their caregivers) and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of the Froedtert & the Medical College of Wisconsin health network. Learn more about our survey.

5 out of 5. 56 ratings, 17 reviews
Dec. 25, 2019
Very caring doctor who helped rid my body of cancer. out 5 years now.
Dec. 22, 2019
honest and professional; listens well; very present
Nov. 6, 2019
I always appreciate the concern and care I receive.Dr. Charlson, Julie and Jan are very helpful and make me feel comfortable during appointments. I am blessed to have them on my team!
Oct. 9, 2019
have always experienced exceptional care from this provider and his staff
Sept. 30, 2019
I have called several times with questions s about health issues and they always get me to see me and care for me.
June 28, 2019
*Dr. Charlson & entire team of providers/staff at Cancer Center are excellent - Team approach to care/professionalism/sensitivity were amazing.
June 21, 2019
He helped me thru some terrible chemo. He worked to keep me comfortable through this terrible time. He always took time with me.
May 29, 2019
*Dr. Charlson is an oncologist & has been my physician for 10 yrs. He and entire staff has performed above and beyond expectation.
I can always depend on *Dr. Charlson & his staff to be professional, respectful and attentive.
May 26, 2019
Dr.Charleston is extremely professional and exhibits warmth,respect,and gives his undivided attention to my specific concerns and makes me feel special. He cares about me above and beyond my specific case ,he asks about my general emotional and physical health. He deserves an A+ rating.
May 23, 2019
Dr CHARLSON is very warm , thoughtful and a very good listener.
May 21, 2019
I sincerely think Dr. Charlson and his team are the best communicators I have ever encountered in the medical field.
May 17, 2019
*Dr. Charlson is the best doctor ever - so easy to talk to!!
April 18, 2019
Knowledge, compassion, team, care.
March 28, 2019
Best doctor ever!!!
Feb. 6, 2019
Although I did not use the telephone to call about a medication concern (according to the terminology used in prior questions) I used myChart and received a prompt answer.
Feb. 5, 2019
Best oncologist to here - so understanding -
Jan. 23, 2019
doctor could not access Labs on the Epic system that had been ordered by an outside physician. office staff had to have Labs faxed to physician during visit.