At Lakeside OB/GYN, S.C., we are committed to providing individualized, expert and compassionate care to women in a warm and friendly environment.  Dr. Kathleen Trebian manages her practice with a strong focus on patient care and satisfaction.  Terri, Dr. Trebian's Office Manager, is an integral part of the practice and is focused on providing an excellent client experience. 

As a small office, we may not always be able to answer your call, but rest assured that we take patient care very seriously and will respond to you in a timely manner. 

Dr. Trebian is outstanding. I have been seeing her for 9 years now and I’m so pleased every time I see her. She makes me feel comfortable and at ease each visit and has a very personable approach with a great sense of humor. She exceeds my expectations each and every appointment and has been one of the most helpful and knowledgable doctors I have ever had. Love her!

Dr. T.

Dr. T.

Dr. Kathleen Trebian, known to her patients as "Dr. T." likes to say she lived on the Pacific Coast and the Atlantic Coast and now she is home on the coast of Lake Michigan where she belongs. 

Dr. T grew up first in Milwaukee then Hubertus, attending high school in Germantown.  She graduated with Honors from UW-Milwaukee.  She then attended the Medical College of Wisconsin on an Air Force scholarship.  After medical school graduation in 1990, Dr. T proudly served 8 years on active duty in the United States Air Force as an OBGYN physician before moving home to Milwaukee in 1998 and starting her private practice on the East Side. 

OB/GYN is the best specialty in medicine. I’ve been so incredibly blessed in the 20-some years I’ve been doing this amazing work. Blessed by my interactions with women of all ages and by their trust in allowing me to care for them, as well as blessed by the amazing experience of assisting in delivery of new life.

When I was a 3rd year medical student we explored the various options for careers from pediatrics to surgery to family medicine. On my OB “rotation” (as it is called) some amazing woman let me have a “front row seat” at the delivery of her 3rd child. She said “Oh, sure, the student can help”.... and I fell in love. I said I can get up every day and do this job. My only regret is not remembering her name, but I am sure God knows who I am thanking Him for sending into my life.

But OB/GYN encompasses all the care for women that is unique to our gender. Caring for young girls with problem periods to the postmenopausal patient adapting to her new phase in life.
— Dr. Trebian



Terri  joined the practice in September of 1999 as the medical assistant and phlebotomist.  Over the years, as the practice has changed, she has taken on the roles of receptionist, billing personnel, and office management.  Dr. T does the "doctoring," and Terri does everything else.