Peter Langenstroer, MD, MS

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4.9 (205)
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Kraemer Cancer Center - Froedtert West Bend Hospital (262) 836-7204
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Kraemer Cancer Center - Froedtert West Bend Hospital (414) 805-0505
Established Patient Appointments (414) 805-0805
New Patient Appointments (414) 805-3666

Management of urologic cancers requires complex and individualized cancer specific care.


Dr. Langenstroer is fellowship trained in Urologic Oncology. This offers his patients a unique cancer focused expertise that facilitates patient education and engagement in a personalized treatment plan.


Dr. Langenstroer also has considerable experience in penile implant surgery as a treatment option for erectile dysfunction. He is in the 90 percentile of implanters nationwide.


Diseases & Conditions

Bladder Cancer
Kidney Cancer
Penile Cancer
Prostate Cancer
Sexual Dysfunction (Male)
Testicular Cancer

Treatment & Services

Kidney Cryosurgery
Laparoscopic Oncology
Robotic-Assisted Prostate Surgery
Urologic Oncology

Ages Seen


Languages Spoken


Hospital Affiliations

Froedtert Hospital
Froedtert Menomonee Falls Hospital
Froedtert West Bend Hospital


Cancer Center - Froedtert Hospital
9200 West Wisconsin Avenue
Milwaukee, WI 53226
(866) 680-0505
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Kraemer Cancer Center - Froedtert West Bend Hospital
3200 Pleasant Valley Road
West Bend, WI 53095
(262) 836-7200
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Urology - Froedtert Hospital
9200 West Wisconsin Avenue
Milwaukee, WI 53226
(414) 805-2120
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Education & Training

Medical College of Wisconsin - Milwaukee - Doctor of Medicine - (1992)

Medical College of Wisconsin - Milwaukee - Master of Science in Pharmacology & Toxicology - (1991)

Medical College of Wisconsin - Milwaukee - Residency - (1997)

University of Kansas Medical Center - Kansas City - Fellowship in Urologic Oncology - (2001)

Board Certifications


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.

4.9 out of 5. 205 ratings, 46 reviews
Dec. 24, 2019
we met with the dr. for a consultation. he spent 10 minutes with us and was gone. I am disabled and it is very hard for me to travel. I came from 1-1/2 hours away. I tried to get this consultation done over the phone, but was told I had to come and meet face to face with the doctor. That is ridiculous.
Dec. 12, 2019
They did their job as if they care about outcome.
Dec. 5, 2019
Just good people. Everyone I deal with is kind, considerate and approachable. Good people.
Nov. 29, 2019
Very knowledgeable provider, explains things which you can understand. You don't feel rushed, he spends time with you.
Nov. 14, 2019
Easy to relate to.
Nov. 14, 2019
this was my first visit , I'm very happy with the time and care I received while there ... much better and more professional and knowledgeable than my previous provider .
Nov. 14, 2019
Very knowledgeable, professional, and understanding.
Nov. 4, 2019
Everything about my visit went perfectly, I couldn't have asked for a better experience.
Oct. 27, 2019
Compassion and thoroughness and understanding
Oct. 19, 2019
Dr. Langenstroer is very knowledgeable and treated me with respect. He also is compassionate, which is important when treating people who are facing some scary decisions. I like him!
Oct. 18, 2019
After I was in the office, the providers reviewed my history, showed me the test results, discussed the options and risks, I selected an option and then I was scheduled right away for the next part of my treatment plan. It was very slick. The assistant, nurse, resident, doctor and scheduler were all very professional. I came into the office worried and left with a plan and peace of mind.
Oct. 5, 2019
Knowledge and skill
Sept. 29, 2019
He is a special person. He always answers any questions that I have with a tone that is very comforting, but honest.
Sept. 22, 2019
He was very understanding of how difficult this time is for me.
Sept. 14, 2019
This was my first visit but I'm happy with the quality of care and respect I was given
Sept. 14, 2019
The Dr. made me feel very comfortable - answered all questions. Helped give good insight on my condition. Was respectful and pointed out my decisions for next step of care were mine to decide.
Sept. 6, 2019
Dr Langenstroer is such a kind and caring person. his knowledge and expertise let me put my complete trust in him. he is pretty special.
Aug. 17, 2019
Dr. Langenstroer is awesome. I only need to see him every 6 months to go over my six month scans. The staff at Froedtert are wonderful. I have been a patient in the cancer center for a little over two years after being diagnosed with stage four bilateral kidney cancer. Dr. Langenstroer removed both of my kidneys, and was very thorough in explaining everything before and after the surgery. During my appointments with him he never rushes through the appointment and always answers any and all questions.
Aug. 15, 2019
I waited 30 minutes in the room be fore the Dr. came in. That is excessive to wait that long.
Aug. 8, 2019
On my yearly visits, I usually have to wait for my provider to check me.
Aug. 4, 2019
This provider made immediate room in his tight schedule for me 8 years ago and saved my life. There are no words to describe my level of respect for him and his ability and expertise as well as my gratefulness for him taking on my case on short notice.
June 26, 2019
Extremely knowledgeable with great sensitivity to patient needs.
June 21, 2019
I just saw him briefly after a six-month interval for the results of a CT scan which was mostly unchanged. He understands that I do not want any kind of aggressive treatment.
June 16, 2019
Dr. Langenstroer is very personable and professional. I appreciate having him for my doctor.
June 14, 2019
Our appointment left us very well informed and confident that we are in the right path. Thank YOU!
June 12, 2019
The doctor & staff are top notch in all respects, I love them all.
May 29, 2019
Dr. Peter L. was willing to listen to all our questions and was very happy to discuss all aspects of my upcoming treatment. We all were impressed by him and liked him very much.
May 23, 2019
The doctor worked with his team , assistant Dr., medical student, nurse and tec to the best possible effect. I will go no where else in Milwaukee for my medical care.
May 20, 2019
Excellant visit
May 17, 2019
Dr.was very helpful and informative explaining my current situation as we discussed my surgery from several years ago which helped me tremendously. I am totally grateful for what he has done for me.
May 17, 2019
I am please with *Dr. Langenstroer.
May 16, 2019
Everyone was polite and attentive to situation. I am very pleased with the service I received. That includes the receptionist in the outer office who checked me in and set me up with a follow up appointment: to the nurses in in the procedure room: and Dr Langenstroer who explaines what he is doing.
May 14, 2019
*Dr. Langenstroer and his staff provided me with exceptional kidney diagnosis and treatment.
May 8, 2019
Dr L is great
May 3, 2019
April 21, 2019
Awesome Doctor...
April 19, 2019
From day one I have been pleased with the care.
April 16, 2019
Very easy to understand. Gave me several options for care and let me decide.
April 15, 2019
The original contact in order to make this appointment for a 2nd opinion was very good...given choices of who to see and good follow up in making this appointment.
April 10, 2019
Seen provider for 2nd opinion on cancer treatment, have scheduled additional care with him
March 27, 2019
doctor is fine. records problem between froedert Milwaukee and KENOSHA hope they het this resolved.
March 25, 2019
cost. Froedtert is getting too expensive for growth reasons and not better care. In new cases we started to see other health care providers.
March 24, 2019
Dr. Langenstroer is an excellent, humble doctor who honors my questions, concerns, and thoughts. He is forthright and kind. I feel blessed to have him as my cancer doctor.
Feb. 22, 2019
As the provider was fairly new to me and the first time he set up my yearly test I had numerous questions regarding caring for myself. The whole unit was terrific!!! I left knowing i was in great hands.
Feb. 21, 2019
Dr. Langenstroer and team were fabulous! They took on a surgery that another urology team refused, stating emphatically that I would die, and did a stellar job. They deserve the rating of number 1 in Wisconsin. I'm alive because of them. Thank you to the staff, team and Dr Langenstroer
Feb. 16, 2019
Dr L and his staff are highly attentive and caring. Make sure that the Dr and his staff see this survey !