Jennifer Mackinnon, MD

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Executive Health, Internal Medicine, Primary Care
4.8 (103)
Associate Professor
Accepting New Patients

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Established Patient Appointments (414) 805-6644
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Executive Health Program – Froedtert Hospital (414) 805-5150

I truly enjoy taking care of my patients. I believe the foundation of the patient-physician relationship is to always put the patient first by listening carefully and engaging in a care plan as a team.



Treatment & Services

Chronic Disease Management
Health Maintenance and Prevention
Women's Health Services

Ages Seen


Languages Spoken


Hospital Affiliations

Froedtert Hospital


Internal Medicine - Froedtert Hospital Specialty Clinics
9200 West Wisconsin Avenue
Milwaukee, WI 53226
(414) 805-6850
Get Directions
Executive Health Program - Froedtert Hospital
9200 West Wisconsin Avenue
Milwaukee, WI 53226
(414) 805-5150
Get Directions

Education & Training

Rosalind Franklin University of Health Sciences/The Chicago Medical School - North Chicago - IL - Doctor of Medicine - (2000)

University of Illinois, Urbana-Champaign - Champaign - IL - Residency, Internal Medicine - (2000-2003)

University of Illinois, Urbana-Champaign - Champaign - IL - Chief Resident, Internal Medicine - (2003-2004)

Board Certifications

Internal Medicine

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.

4.8 out of 5. 103 ratings, 28 reviews
Nov. 13, 2019
She brings up sensitive topics and offers advice without making me feel bad about myself or make me feel like I'm doing something wrong. I've had providers do this in the past so I really appreciate that.
Nov. 3, 2019
She listen to my concerns, and help get me the proper medication
Oct. 21, 2019
I think a phone call about lab results is nicer than looking up results in Mychart. Then there is a chance to ask questions.
Oct. 10, 2019
Dr. Mackinnon took the time to sit down and talk with me about several concerns. She demonstrated compassion and empathy. In addition she explained things to me in a way I could understand. She is an excellent clinician.
Oct. 9, 2019
Good listener: patient, concerned, thorough in presenting options
Oct. 7, 2019
reply to my chart has not been as prompt as other physicians. otherwise very good experience. I am thankful for alll the time that dr. Mckinnon spent with me.
Oct. 3, 2019
At the end of my appointment, my provider asked me to wait in the room for my 'paperwork' before I left. I waited over 15 min and no one came back to the room and I couldn't find anyone in the hallway or at the front desk. So I left. I dont know if this was a mistake/fluke, but it certainly was bizarre!
Sept. 29, 2019
Everytime I visit Dr MacKinnon I feel well cared for and treated with dignaty and respect.
Sept. 26, 2019
I had to wait a whole month before I could see the doctor for the issue / problem I had. I did'nt get any help /medication for that specific problem.
Aug. 5, 2019
Dr. Mackinnon always provides the best care when I see her. I am an active user of mychart. Dr.Mackinnon and her team answer my mychart needs in a very timely manner, including helping to get referral appts/tests and giving me my test results.
July 17, 2019
Provider is wonderful. Concern with being scheduled at 7:45 for appointment to arrive to a closed check in desk and along with 4 other patients. Then being told that 7:45 is our check-in time for an 8:00 appointment. The timing is of little importance, but rather, the check-in desk should be open at 7:30 as many patients arrive early to check in and not aware that time is already built into their visit. Also, I updated all of my information in MyChart prior to arriving so that it would expedite the visit and not have to review all the information. This was not effective as I was still asked all the same questions. Physician and staff are wonderful, system/policies seem to be off.
July 5, 2019
June 14, 2019
We talked about a bone scan - taking calcium which was included in my follow-up so I will need to contact dr. to see what she would like me to do... or not do - my last visit a yr. ago I had the same type of issue having to follow up on our conversation which she remedied.
June 11, 2019
Improve my quality of life with her professionalism. Thank you Jennifer Mackinnon MD.
May 23, 2019
Intelligent; competent; friendly; personable; caring = excellent!
May 23, 2019
I arrived on time as the first patient of the day. The medical assistant was very nice & had completed her portion of the appointment in a timely manner. I was just about to step out of the exam room to see what was taking so long. Doctor finally walks in the exam room 27 minutes after my scheduled appointment! no apologies for being late. Acting as if everything is fine. I had already made arrangements to be a late arrival to work; but, now I was even more late! Just because she didn't want to start her clinic on time.I have had years of issues with this provider (missing orders at lab on two different occasions). Frustration with her is at an all time high!
May 16, 2019
always comfortable about talking to the doctor
May 14, 2019
Dr. Mackinnon is phenomenal!
April 30, 2019
They look at you when they are speaking to you.
April 24, 2019
receptionist and medical assistant were exceptionally pleasant. love having med students. Dr. M is a great listener
April 23, 2019
when we met the first time a few years back I told her she had to always be smarter than me ! She always is !
April 18, 2019
I could talk to my doctor about anything.
March 16, 2019
My provider does a good job. I have an issue with the rest of the team - they don't explain things, bring the wrong stuff into the exam room and have to go get other stuff, wait, wait, wait.... It was not efficient at all. I felt bad for my doctor because it reflects poorly on her.
March 14, 2019
March 9, 2019
Dr MacKinnon is very attentive!
Feb. 24, 2019
I had loss of voice when I entered the Clinic but the Receptionist fail to offer me a mask. After seeing the Dr I was told that I had a sinus infection.
Jan. 23, 2019
She listened carefully to any concerns & offered suggestions. She is personable and knowledgeable and I trust her. She is a very good doctor.
Jan. 23, 2019
Dr. MacKinnon is a consummate professional physician who treats me with respect and dignity in a timely fashion. I would recommend her as an Internist to anyone looking to receive high quality health care. She always has time to listen and process in order to treat me as a whole person..Thank you, Dr. Jennifer MacKinnon for being my "go to" physician for many years. Sincerely.....