I trained as a doctor and spent years caring for women with symptoms that were often misunderstood or dismissed. When I received more in-depth education on menopause I finally understood what was being overlooked—and why it mattered so much.
The reality is, Western medicine does not always provide doctors with the comprehensive education they need on ovarian neuro-endocrine hormones during their training — despite 51% of the population being born with ovaries. This led me down a path of discovery into the world of ovarian science. But through that discovery, I also experienced grief as I recalled those women I could have helped had I received this vital training.
I believe every woman deserves this knowledge, and I have dedicated my career to empowering women to take charge of their menopause transition in order to thrive throughout this transitional
Hello, I’m Dr. Aoife O’Sullivan and I’m here to help you
embrace this new chapter and feel incredible doing it.
By training, I am a family physician, board certified by the American Board of Family Physicians and a menopause specialist, certified by the North American Menopause Society, dedicated to empowering women through their midlife health journeys. Originally trained in Ireland, I completed medical school and a family medicine residency there before moving to the United States in 2004, where I completed a second residency at the University of Maryland.
Beyond menopause care, I have a diverse clinical background spanning general medicine, HIV care, gender-affirming care, urgent care, and emergency medicine, to bringing extensive experience in outpatient care to each of my patients.
As the founder of Portland Menopause Doc, I offer menopause-focused telemedicine for personalized care rooted in preventative health, informed consent, and shared decision-making for patients in Oregon and Washington.
As an educator, speaker, podcast host, frequent podcast guest and active contributor to midlife women’s health research, I am committed to advancing physician understanding of menopause and women’s sexual health. I lecture to the residencies, medical practices, medical associations and local businesses here in Oregon and Washington.
In 2024, I co-founded The Portland Menopause Collective along with three other women physicians dedicated to the education of other physicians and women in the community on women’s midlife care. And in 2025, along with two fellow clinicians I created The Dusty Muffins, a women’s health podcast giving women the knowledge they need to empower themselves for the second half of their lives.
I am lucky to be enjoying my own midlife in Portland, Oregon, together with my sweet family. I get to spend my free time skiing, playing tennis and pickleball, reading, going for long walks, cherishing family movie nights, traveling for work and for fun, and helping women who inspire me.
Dr. Aoife O’Sullivan is a member of:
- American Academy of Family Physicians
- Oregon Academy of Family Physicians
- North American Menopause Society
- International Menopause Society
- International Society for the Study of Women’s Sexual Health
- Newson Health Menopause Society
- International Society for Sexual Medicine
Voted one of Portland’s Top Doctors 2019, 2020, 2021, 2022, 2023, 2024 and 2025
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“Going to Dr. O’Sullivan changed my whole life and well being.”
“I was so tired, suffering from anxiety and depression, and had become overweight. Dr O’Sullivan was compassionate and listened and helped me to step through what I was going through. We focused on balancing my hormone levels and getting healthy sleep and treating my depression. Today, I am happy and able to cope again with life. I have energy and that has helped me focus on being healthier. I am there for my family once again. Thank you Dr O’Sullivan!”
Karla M
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“WOW! Dr. O’Sullivan has a wealth of knowledge when it comes to women’s health, specifically peri/menopausal women!”
I’m so glad to have had appointments with her to learn about myself, and get me back in ‘fighting form’. Thank you!
Jennifer H
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“If you’re looking for a menopause specialist who truly cares and offers effective solutions, look no further!”
Navigating menopause can be overwhelming, but Dr. O’Sullivan takes the time to explain symptoms in detail and works with patients to develop a personalized treatment plan.
She is incredibly knowledgeable, compassionate, and patient—always making sure patient’s feel comfortable and well-informed at every step. With her guidance, women feel like they have regained control of their health and life.
Rebbecca H
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“My life is changed for the better.”
Dr. O’Sullivan is attentive, caring and so knowledgeable regarding women’s health and menopause. I am thankful everyday for the luck I had in finding her as my care provider. I highly recommend her as a care provider.
Laura T
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“My health and vitality is substantially improved as a result of my work with her.”
Dr. O’Sullivan is providing me with care from the standpoint of a special expertise she possesses. She is the total package one wants in a doctor and if I could give her more stars I would! She is bright and brimming with up-to-date knowledge while also being very warm and compassionate. She takes time to thoroughly explain things and address questions and concerns. I feel very fortunate to have access to this wonderful physician
Judith P
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“The care Dr. O’Sullivan provided was outstanding.”
Always, she listened, heard, was empathetic, patient, responsive and knowledgeable. I have rarely had the faith and trust in any doctor that I had in Dr.O’Sullivan.
Vallera J
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“What a pleasure to be asked to rate my favorite doctor of all!”
She has given me ideas that have literally changed the way I choose what food to eat-you’ll have to ask her for details. She was always 100% attentive to my questions and in listening to my long history and quickly came up with ideas and solutions that were of great value.
Cheryl M
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“Dr. O’Sullivan is truly the most caring doctor that l’ve had the pleasure to treat me.”
She is intelligent, creative, thoughtful and thinks outside the box. She is very thorough in determining the right care and treatment options, and goes the extra mile to find the right diagnosis when it is not always obvious.
Karen B
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“Dr. O is one the kindest and welcoming doctors I’ve ever been treated by.”
She’s easy to speak with and she truly listens to you. I appreciate her approach and truly trust her decisions.
Carrie C
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“I found Dr. O’Sullivan to be warm and insightful caregiver.”
She balances compassionate insight with medical knowledge and a full focus on the patient. I enjoyed her humor too and am glad to know that she is going to be practicing with menopausal women who will benefit from her presence.
Christine F
“I’ll have what she’s having.”
Ready to feel like yourself again? Join my 6 month Reignite You program for
personalized treatment, close follow-up and real results. Get ready for a
lifetime of more energy, better sleep, better skin (and yes, better sex).
Catch Dr. O’Sullivan on
The Dusty Muffins Podcast
This is The Dusty Muffins, where menopause meets sisterhood and strength!
Three menopause specialists unite to inspire, empower, and uplift you through the wild ride of menopause and perimenopause. We’re here to answer your burning questions, educate, and advocate with a touch of humor and a lot of heart.
Listen to or watch:
The Four Phases of Ovarian Transition
“Am I menopausal?”
phase 1
Reproductive
Generally regular periods and cyclic hormonal changes, from your first period onwards
phase 2
Perimenopause
Hot flashes, night sweats,
mood swings, vaginal
dryness & fatigue are all
felt about 5 years before
menopause
phase 3
Menopause
Is one day. It is when a
woman has not had a
menstrual period for 12
consecutive months,
typically between 45 to 55
years of age
phase 4
Postmenopause
From the day of
menopause onwards for the
remainder of her life
(which can last 30-40
years!)
Take the MenoDecoder quiz to connect the dots and reveal whether your symptoms
are related to perimenopause, and tips to help manage your menopause journey.
Live fully and fiercely at every phase.
Sign up for Dr. O’Sullivan’s free tips to help you navigate your menopause journey.
