About Mary Faith Terkildsen, MD

Mary Faith Terkildsen, MD, an obstetrician gynecologist at Endeavor Health, delivers personalized care to women throughout all stages of life. She is passionate about educating patients and empowering them to make informed decisions based on their values and needs. Dr. Terkildsen emphasizes patient autonomy, presenting treatment options transparently and working collaboratively to develop individualized plans.

My endeavor

My endeavor is to provide the best patient care possible.

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Care philosophy

I believe in educating patients so they can understand their conditions and choose treatments that align with their preferences. I guide them through all their options—from conservative to more invasive—and give them the space to decide what feels right.

Overview

  • Gender Female
OB/Gyne Associates of Lake Forest, Ltd.
959 S. Waukegan Rd., 2nd Floor
Lake Forest, IL 60045-2654
(847) 234-3250 Get directions
Medical School
  • 1998
    Tulane University Medical School
Residencies
  • 2002
    Obstetrics/Gynecology
    Northwestern Feinberg School of Medicine
Board certifications
  • 2005
    Obstetrics & Gynecology
    American Board of Obstetrics and Gynecology
4.8
(269)
Learn more about ratings
Reviews (22)
November 10, 2025
Dr Tirkildsen has been the only doctor who's been able to help me. She listened to my concerns and was able to start me on treatment that actually helped my symptoms. My symptoms were dismissed by other Physicians for years. I was suffering and didn't understand what was going on with my body During the perimenopause period. She is calm and kind. Thank you for helping me.
November 8, 2025
Dr Terkilsden is one of the finest doctors that I have ever had. Her knowledge, empathy and good humor have helped see me through more than one challenge.
November 6, 2025
She is an amazing doctor. She put me completely at ease to discuss personal issues around sexuality.
October 23, 2025
Check in was quick.
October 21, 2025
She was wonderful! Very informative and supportive with kindness and care.
October 5, 2025
Very professional. Caring and kind doctor and staff.
October 2, 2025
Dr. Terkildsen is always attentive and a good listener. She sprnds enough time with me to answer all my questions.
September 9, 2025
She is knowledgeable and kind
September 5, 2025
I have been a patient of Dr. T for many years. She remains an informed and empathetic provider of care. She takes the time to review my history, sit and speak with me, and, of course, provide the highest level of gynecological care.
August 31, 2025
It really is impressive how this particular office works. Information flows quickly and accurately, and everyone on the staff is courteous as they all work together They are all on the same page. Continuity of care is excellent. And Dr. Terkildsen is a FANTASTIC doctor. She does an amazing job of explaining the interplay of physical, neurological and emotional factors and how they can all be treated to improve the patient's condition. And then she makes certain that everything is addressed.
August 28, 2025
Dr. Terkildsen was an excellent listener, very knowledgable, and took a lot of time to listen.
August 27, 2025
I've been seeing Dr. Terklisen for years, she's one of the best that I've ever been to. She's a common sense person and easy to speak to thank you endeavor health for hiring quality physicians.
August 26, 2025
The Doctor was great.
August 21, 2025
I can't say enough good things about Dr. Terkildsen. She listens, she cares, and she knows how to treat.
August 14, 2025
Dr Terkildsen is a supremely skilled professional: caring, kind and a good listener. She explained everything so I understood.
August 1, 2025
I don't feel like she did everything she could to help my situation.
July 28, 2025
Always great patient care and concern.
July 28, 2025
Dr. Terkildsen is such a sweet doctor. She listens to all your concerns and really tries to understand and help with the problem. It's really taboo to talk about sexual health and Dr. Terkildsen really helps you feel comfortable talking through these kinds of topics. She also helps you realize just how common these kinds of things are and that you aren't alone in what you are experiencing.
July 23, 2025
The doctor was very patient and kind.
July 14, 2025
This was a new doctor for me and she was very personable and attentive
July 8, 2025
Dr Terkildsen is great! Patient and explains things!
July 3, 2025
Dr. Terkildsen is wonderful and has solved my problems.
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