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Thomas D. Brennan, MD

Thomas D. Brennan, MD

4.6 (56 Ratings)
Obstetrics and Gynecology | Physician and Surgeon
Women's Healthcare Associates, LLC - Peterkort North
9701 SW Barnes Road Ste 200, Portland, OR 97225

Dr. Thomas Brennan is a board-certified OB/GYN physician and surgeon at Women’s Healthcare Associates in Portland, Oregon.

From the Provider

“I hope that every patient leaves a visit with me feeling heard, valued and appreciated and that we are a team working together. I am honored and humbled to be able to care for women during some of the most challenging and important stages of their lives and I take the trust they place in me very seriously.”

About the Provider

A fascination with anatomy and physiology, combined with a passion for learning and a desire to be challenged led Dr. Brennan toward a career in medicine. He chose OB/GYN because of the opportunity it offered to develop lasting bonds with patients during some of the most important times of their lives, while still pursuing his passion for surgery. In addition to caring for women during pregnancy and childbirth, he also helps them address a variety of gynecologic issues, including symptoms such as abnormal or heavy bleeding and pelvic pain and conditions such as endometriosis, ovarian cysts, uterine fibroids and uterine polyps.

Dr. Brennan grew up in Salt Lake City, Utah but has been in Portland since moving here for college in 2004. He is married with three children. In addition to spending time with family, he enjoys watching sports and writing poetry.

Affiliated Hospitals

  • Providence St. Vincent Medical Center

Certifications

  • Obstetrics and Gynecology, American Board of Obstetrics & Gynecology, 2023

Education

  • Residency
    • Obstetrics and Gynecology, Oregon Health & Science University, 2019
  • Medical School
    • Doctor of Medicine, Oregon Health & Science University, 2015
  • Undergraduate Degree
    • Biology, University of Portland, 2008

Patient Survey Responses

4.6 (56)
Taking time to answer your questions
4.6 out of 5
The thoroughness of the visit
4.6 out of 5
Explaining things in a way you could understand
4.6 out of 5
Including you in decision-making about your treatment plan
4.6 out of 5
Knowledge of important information about your medical history
4.6 out of 5
Willingness to listen carefully to you
4.6 out of 5
Instructions regarding medication/follow-up care
4.6 out of 5
Amount of time spent with you
4.6 out of 5
Knowledge of healthcare received from other providers
4.7 out of 5
Advice given to you on ways to stay healthy
4.6 out of 5
  • 10/10/2025

    I had other health problems so my doctor worked with me on how to keep my insulin usage to a minimum while trying to control my diabetes during my pregnancy.

  • 08/03/2025

    Dr. Brennan is by far one of the best doctors I’ve had. It’s been a long time since I’ve felt seen, heard, and respected by a doctor. I will recommend him to anyone needing a great doctor!

  • 07/10/2025

    This was my first visit to Dr. Brennan, who was the first medical procedure I have experienced at your clinic. Boy, did I ever luck out!! I had called soon after 8:00 a.m. with an urgent problem, and was able (as luck would have it) to see him at 11:00 a.m.! A MIRACLE!! I'm 79 years old & have seen many gynecologists in my day, but that day, I hit the jackpot. In my experience, male gynecologists either love women or hate women – it's obvious in the way their patients are treated. Dr. Brennan CLEARLY is a man who truly cares about the whole person. He exudes confidence and genuine caring (not the typical male "dominance" approach). I felt heard, which immediately put me at ease. He listened to my issue and was respectful of my body and my words. He took time to talk with me about possible treatment & medication changes. I'm sure he would be quickly off to another patient, but I did not at any time feel hurrried. The nurse who was with me during the whole process was very kind, unobtrusive, and helpful. There were two ladies at the check-out area and she and the scheduler of my follow-up appointment were marvelously, genuinely friendly – the kind of folks you really want to be friends with! Overall, I was absolutely thrilled with my care – and that's saying a lot!

  • 07/04/2025

    I like that I didn't have to fight with the doctor to get a hysterectomy.

  • 04/25/2025

    Dr Brennan is the best! Very pleasant, caring, takes time to explain procedure, possible complications etc, answers questions and doesn't rush you out.

  • 03/30/2025

    I only listed “good” for amount of time & thoroughness questions as I feel that providers might be a little overbooked / dealing with so many patients! But considering that, I have remained incredibly impressed at the level of care despite the increase in patients that seems to be the case. Also have been very impressed with billing in general – no issues with OHP or insurance changes or issues with my name even though Medicaid has my maiden name instead of my current, legal married name – you guys never had issues (every single other doctor’s office has, so I expected it) – this was just so impressive to me. Billing truly goes above and beyond here, give them all huge raises!!!

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