Thomas D. Brennan, MD - Physician and Surgeon, Obstetrics and Gynecology, Portland, OR

Physician and Surgeon

Obstetrics and Gynecology

Provider Bio

Dr. Thomas Brennan is a board-eligible 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 abnormal uterine bleeding, heavy vaginal bleeding and pelvic pain.

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.


  • 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


  • American College of Obstetricians and Gynecologists

  • American Medical Association

Patient Survey Responses

  • Provider Ratings (38)
  • Patient Comments (5)

Advice given to you on ways to stay healthy?

4.21 out of 5

Amount of time spent with you?

4.47 out of 5

Explaining things in a way you could understand?

4.45 out of 5

Including you in decision-making about your treatment plan?

4.26 out of 5

Instructions regarding medication/follow-up care?

4.42 out of 5

Knowledge of healthcare received from other providers?

4.15 out of 5

Knowledge of important information about your medical history?

4.05 out of 5

Taking time to answer your questions?

4.39 out of 5

The thoroughness of the examination?

4.27 out of 5

Willingness to listen carefully to you?

4.34 out of 5
  • 07/24/2020

    Is there anything else you would like to share about your experience with your provider?

    Dr. Brennan is a credit to his profession. He is KIND (a huge and overlooked quality in a doctor, especially since I have horror stories from my gynocologist at UPenn), patient with answering my questions, thorough in explanations that are complex for layperson, and completely professional/appropriate in dealing with sensitive bodily issues and topics. I would recommend him to any and all womxn seeking gynocological care.

  • 07/10/2020

    Is there anything else you would like to share about your experience with your provider?

    Doctor Brennan has a great rapport, this was a fabulous first visit.

  • 02/11/2020

    Is there anything else you would like to share about your experience with your provider?

    This is the first provider I have seen in my adult life who left me feeling empowered in my health care and that I had all my questions answered. The results were a shock, but the way he handled my questions and preparing me was exemplary. I feel that my health is in good hands for the first time in along time.

  • 11/06/2019

    Is there anything else you would like to share about your experience with your provider?

    Excellent! One of the best providers I have ever seen

  • 10/25/2019

    Is there anything else you would like to share about your experience with your provider?

    I wish the doctor could write me a message to explain after he sees/checks/follow up with my test results, even if the results don't appear unexpected.

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