About Kathleen Lefens, APN-CNP
Kathleen A. Lefens, APN-CNP, a nurse practitioner specializing in urology at Endeavor Health, provides care for patients with conditions affecting the urinary tract and male reproductive system. She conducts evaluations, orders and interprets diagnostic tests, and assists in developing treatment plans. Lefens works with urologists and multidisciplinary teams to support both surgical and non-surgical management.
Overview
- Gender Female
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Endeavor Health Medical Group
1000 Central St., Suite 720 Evanston, IL 60201-1779 -
Endeavor Health Medical Group
2180 Pfingsten Rd., Suite 3000 Glenview, IL 60026-1340
Professional Education
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2015Northern Illinois University
Reviews (174)
March 31, 2026
Kathleen has a very good bedside manner. She listens to the patient and considers her responses carfully.
March 27, 2026
Kathleen was both thorough and helpful.
March 24, 2026
Great
March 19, 2026
APN-CNP Kathleen Lafens currently helps oversee my prostate cancer care and she has been great. She explains Issues thoroughly and is very accessible and responsive. I'm glad to have her monitering my cancer care.
March 17, 2026
I rate Katie 10 out of 10.
March 17, 2026
Kathleen is excellent, outstanding
March 14, 2026
The care provider was very good.
March 10, 2026
My Urologist Kathleen was amazing. She had all my questions give me some tips and things I should do and look forward to going back every six months.
March 7, 2026
Treated with respect expediency and professionalism.
March 6, 2026
Excellent individuals knowledgeable and professional
March 6, 2026
Parking at this facility is very difficult
March 6, 2026
Kathleen is a very caring PA. She made feel at ease by answering all my questions with a smile . I felt at ease with her.
March 5, 2026
Katie Lefens is excellent. She is very reassuring, calm, gets to the point, and provides necessary follow up steps.
March 5, 2026
Katie Lefens is very professional and caring. She makes you feel at ease and comfortable.
March 4, 2026
She's terrific.
February 26, 2026
Excellent visit with PA. Very informative and advised on tests jointly need and those to be repeated.
February 24, 2026
Very professional and thorough.
February 24, 2026
Katie Lefens was great. Endeavor Health is lucky to have her.
February 21, 2026
Kathleen Is very knowledgeable, attentive, patiently explained and answered all my questions .
February 18, 2026
Very thorough and patient explanation of my test results and treatment outlook.
February 10, 2026
Very pleasant and helpful.
February 10, 2026
Excellent care provider. Listens very well and offers good suggestions to address issues
February 5, 2026
We were able to take care of of the issues that were my concern. Getting prescription refills without jumping through ridiculous hoops.
February 3, 2026
I thought that Kathleen did a great job on her analysis. I felt comfortable with her and I believed that she was very knowledgeable in her field.
February 3, 2026
I have had good care had a colonoscopy and then uti
January 28, 2026
She was listening and she knew what she was talking about.
January 27, 2026
Katie's approach to her patient was very welcoming. She listened to my concerns and issues and together we arrived at a course of action which will address the medical issues. And, she invited my feedback in a couple of weeks to let her know how it was working.
January 21, 2026
The doctor was very polite and professional. I was happy with the service she provided.
January 20, 2026
My Dr Novakovic, David Davidson Cardiologist, my primary Branka O'Sullivan, nurses, ER Doctors and staff and INR Clinic have been absolutely professionally amazing, kind and caring.
January 18, 2026
Very thorough, explained things well
January 10, 2026
Excellent attention to my health care. I appreciate the doctors and team as well as support staff.
January 10, 2026
Excellent communication, engaging, on topic but very friendly. She's great.
January 6, 2026
Very kind, informative, unhurried
December 22, 2025
She listened, gave thoughtful answers and allowed me to take my time
December 20, 2025
Kathleen is a wonderful, caring person. She is very competent, thorough and responsive.
December 20, 2025
My care provider was very knowledgeable and answered all my questions.
December 18, 2025
Very kind and very understanding
December 18, 2025
Good experience, everything went perfect
December 16, 2025
Very good
December 14, 2025
Great visit. Professional, polite, personable. Answered all questions. Thank you!
December 9, 2025
They are very good very professional
December 9, 2025
APN Katie took time to answer my questions explaining the entire process and checoback in my chart to confirm possible issues around allergies and planned testing. She also quick to enter orders for all pre-tests so that no delay or doubt when I checked in at OP labs.
December 6, 2025
Good person always good job . All staf active to one job so all are good .
December 5, 2025
Very caring and considerate of your needs
December 4, 2025
Dry pleasant, professional and efficient. It was a very positive experience.
December 2, 2025
Katie is very kind and very willing to listen to my issues. She Is very knowledgeable and willing to help. I enjoy going to see her as my Care Provider!
December 2, 2025
This was my first interaction with Katie Lefens, and I was very impressed! I look forward to future follow up visits with her every year.
December 2, 2025
Kathleen Lefens did a fantastic job in describing procedures and over manner!
November 22, 2025
Dr. Lefens was very professional and help me
November 22, 2025
Couldn't be better. Very thoughtful, engaged, and patient.
November 21, 2025
Very nice.
November 21, 2025
She was knowledgeable, helpful, clear, on top of the situation.
November 17, 2025
Kathlleen Lefens, APN-CNP, offered very personable, knowledgeable, and professional advice. She listened well to my questions as well as to my responses to her questions. Together we reached decisions where I, at first, felt an initial reluctance to a suggestion. I felt confident that I was receiving outstanding care in a very friendly setting.
November 16, 2025
All was good
November 15, 2025
The visit was brief but informative.
November 15, 2025
Very thorough and responsive to my questions.
November 13, 2025
Very professional, and very personable. Given our prior meetings, and actions taken, I trust her quite a bit.
November 11, 2025
Very professional and courteous. Answered all my questions and provided guidance for the future.
November 4, 2025
Outstanding patient care provider
October 31, 2025
PA Lefens was very personable, and provided useful information to assist with my symptoms
October 30, 2025
Very good. Professional and knowledgeable. Took time with me. Answered all my questions. Comfortable with my plan.
October 30, 2025
Very tuned in to my concerns. I felt that she managed my anxiety level perfectly.
October 24, 2025
Very knowledgeable, listened and gave guidance on a very complex issue-outstanding visit
October 18, 2025
Very good and professional
October 18, 2025
Nice team,Nice people, Everything is perfect from the first step in the Hospital. I recommend to everyone! Thank you!
October 17, 2025
Katie was personable, professional, and very thorough!!!
October 17, 2025
Excellent listener.
October 9, 2025
Excellent
October 7, 2025
Very thorough explanations, put my mind at ease.
October 6, 2025
She is quite good at what see does.
October 2, 2025
Professional, friendly and on time
September 29, 2025
She was very thorough, thoughtful, and informative.
September 29, 2025
I can't say enough good things about Katie Lefens. She has a great "bedside manner" and her knowledge base is exceptional. She is honest but kind. I would recommend her to any of my buddies, as we all seem to be going through the same thing.
September 24, 2025
She is very personable, listens to her patients and involves them in health decisions.
September 18, 2025
excellent
September 18, 2025
NP in urology was excellent, outstanding person
September 17, 2025
Very easy to talk with,clearly a very caring professional
September 11, 2025
Katie was great- very personable, knowledgeable, and efficient.
September 11, 2025
On the day of my appointment, the receptionist was very very kind and greeted me with a great smile. Katie, the provider was the best!!! She is the main reason that I choose endeavor.
September 8, 2025
Well Trained
September 7, 2025
Excellent - Bedside manner was superb and informative.
September 6, 2025
Very good
September 5, 2025
Kathleen Lefens is very knowledgeable and help answering many concerns. I rate her at the top
September 4, 2025
It beat my expectations
September 4, 2025
Excellent care.
September 3, 2025
Solid communication and clinical skills while also efficiently answering all questions and briskly setting up future visits and tests. Doesn't waste time yet you don't feel rushed. Is always well prepared on your medical history and current needs.
September 3, 2025
Good
September 1, 2025
Careful, through, patient!
August 31, 2025
She listened, seemed to understand and referred me to next step
August 30, 2025
Kattie was great: knowledgable, thorough, and patient. Classic great encounter
August 29, 2025
She was very kind and asked great questions.
August 29, 2025
Katie Lefens is a very thorough nurse practitioner. Professional and made me feel very comfortable.
August 27, 2025
It's a good idea to have doctor's appointment using this video appointment.
August 26, 2025
Kathleen is very knowledgeable in this field. She does an outstanding job.
August 21, 2025
Katie Lefens was very helpful and informative.
August 19, 2025
She was very thorough and explained what each procedure was about and why we were doing them
August 17, 2025
Katie was wonderful and very professional in her explanations of my condition
August 15, 2025
She was excellent-wish we could have her for our primary doctor
August 15, 2025
Both friendly and professional
August 14, 2025
First time met with her. Loved her. She gave me good advice & was told her plan/goals for my health.
August 8, 2025
Kathleen is doing fantastic job explaining my conditions.
August 6, 2025
Dr Levens was very patient and caring when discussing the procedure.
August 3, 2025
Manner was fine. News... Not so great, but not terrible.
August 3, 2025
Katie and all staff were friendly kind and courteous
August 1, 2025
Knowledgeable, good listerner
August 1, 2025
Very nice.
July 31, 2025
This doctor was very caring and displayed an earnest concern for my wellbeing and was not condescending when answering a question.
July 31, 2025
Ms. Leffens was pleasant, informative and reassuring.
July 26, 2025
Pleasant, patient and professional.
July 25, 2025
She's very professional she is awesome great person and great professional Thank you so much!!
July 24, 2025
Katie and staff were professional, caring, kind and efficient
July 24, 2025
As a patient, I can say Kathleen Lefens, APN-CNP is great to work with. She put me at ease the first time I saw her and ever since. She always fully answers any questions I have. I believe she is fully invested in keeping patients informed and answering any questions. I would highly recommend her to anybody.
July 23, 2025
Everything excellent
July 20, 2025
Was good
July 18, 2025
Friendly, polite staff, good communication.
July 12, 2025
She was excellent
July 10, 2025
Quickest medical appointment I've ever had.Thanks to the great care I've had over the years.
July 5, 2025
Kathleen was very kind and professionalShe reviewed all my concerns.Hats off to Kathleen
July 3, 2025
Ms. Leffens is the best! She is very caring and offers great advice on how to deal with your medical issue.
June 15, 2025
APN Lefens has a very intuitive, caring nature. She has a friendly, gentle and patient demeanor which is much appreciated. I would highly recommend her.
June 12, 2025
Punctual, well informed, congenial, showed high degree of care & support
June 12, 2025
Katie is knowledgeable, understanding and quick to offer suggestions for improvement of my symptoms. I find that reassuring.
June 11, 2025
Katie was excellent person. She was clear in her directions, predicted correctly, and very knowledgeable on my care.
June 8, 2025
NP Lefens was professional, knowledgeable, informative, and caring.
June 7, 2025
Extremely professional. Discussed alternatives and future monitoring
June 2, 2025
She was very personable and informative.
May 31, 2025
Kathleen Lefens is excellent
May 30, 2025
Excellent service
May 30, 2025
Dr Kathleen Lefens was very informative, helpful, pleasant, and on time.
May 25, 2025
My visits feel so at home and comfortable. Feels like a Dr in the Family
May 23, 2025
Katie Leffens is knowledgeable and straight forward.
May 17, 2025
Very thorough and explained things well.
May 8, 2025
She was excellent. Understood my situation and need for this virtual visit. Answered all my questions and provided added info and advice
May 5, 2025
Thoughtful and helpful
April 28, 2025
She was very professional and easy to work with, considering it was the first time I met her.
April 25, 2025
She was very caring, answered all my questions.
April 17, 2025
No delays...
April 15, 2025
Kathleen was an outstanding care provide. Efficient, professional and excellent listener. Very happy to now have this medical group on my care team!
April 15, 2025
My care provider was very kind and thoroughly understood my issues.
April 11, 2025
She was great. Very personable and informative
April 8, 2025
The personal was great today, it was the 1st visit with her.
April 6, 2025
NP Lefens was not rushed, but did get right to the point of the visit. My questions were answered to my, and my wife's, satisfaction.
April 4, 2025
She was excellent
March 30, 2025
She was great. Did a great job explaining everything.
March 28, 2025
Very thorough.
March 27, 2025
Katie Lefens seems very competent
March 25, 2025
Katie Lefens answered all my questions. She was very patient and knowledgeable. Helpful with my concerns.
March 23, 2025
Kathleen Lefens was on time, knowledgable, helpful, friendly.
March 22, 2025
I'm grateful Great service very professional Thank you so much
March 17, 2025
She was a blessing amen
March 16, 2025
Very thoughtful. A great listener, and I came away understanding my symptons and issues with clear eyes.
March 13, 2025
Kathleen was very professional and organized and addressed all my concerns. Explained medical technology accurately covering all options.
March 13, 2025
Kathleen Lefens was very professional and caring. I appreciated the fact that I was able to feel like I was important.
March 6, 2025
Ms Lefens was courteous, very knowledgeable, answered all my questions and made me feel very comfortable to be in her care. I feel confidence moving forward.
March 6, 2025
Excellent people skills and knowledge of medical issues!
March 6, 2025
Relatively fast appointment over the portal in direct contact with my nurse.
March 4, 2025
Excellent and courageous.
March 4, 2025
I enjoyed meeting Nurse Lefens.
February 27, 2025
Kathleen was very professional, kind and friendly. I highly recommend her.
February 21, 2025
Kathleen was great. Great manner and took the time to answer all my questions.
February 21, 2025
Very nice
February 21, 2025
She was absolutely great
February 16, 2025
Very proficient, well prepared and responsive.
February 15, 2025
Very kind, thorough and professional
February 13, 2025
Great bedside manner.
February 11, 2025
Ms Levens was very, patient and helpful.
February 6, 2025
Professional, knowledgeable, pleasant
February 4, 2025
I feel confident working with Lefens that she is on top of my situation and has the time to listen and answer questions.
January 26, 2025
Very professional and provided a high degree of care and service. Thank you.
January 24, 2025
Excellent in both the ease of pre-appt paperwork, and in working with Ms Lefens. I will have no problem in future visits with her.
January 20, 2025
Kathleen was very friendly and professional and easy to talk to.
January 19, 2025
Katie Lefens was terrific. She asked great questions, she quickly analyzed my symptoms, gave me her assessment of my case, recommended further action in a very prompt and efficient manner.
January 11, 2025
When I finally was able to reach her, she was very nice and efficient
January 7, 2025
Katie was fantastic and very informative. She gets a very solid 5 on all counts.
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