Endometriosis Excision Surgeon

Dr. Megan Wasson

Phoenix, Arizona


A surgeon who has made endometriosis her life's work, not just her specialty

Dr. Wasson chairs the Department of Medical and Surgical Gynecology at Mayo Clinic Arizona, has published more than 70 peer-reviewed papers with a significant portion focused on advanced and extrapelvic endometriosis, and has delivered over 200 invited lectures. She trains fellows with an explicit goal of expanding access to endo care by growing the number of surgeons who actually understand the disease. That is not a small thing in a field where qualified excision surgeons remain scarce.

What sets her apart beyond credentials is the consistency of her community reputation. Patient accounts across multiple years and platforms describe the same experience: feeling believed, being thoroughly evaluated, and having complex disease found and treated in a single surgery. She is comfortable with cases that most surgeons would not attempt, including endometriosis of the diaphragm, pericardium, spleen, and thoracic cavity. Patients travel across the country to see her, and by their own accounts, they do not regret it. For patients with advanced disease, extrapelvic involvement, or a history of being dismissed, Dr. Wasson is a meaningful name to know.

Advanced and extrapelvic endometriosis is a primary clinical and research focus

Dr. Wasson is a fellowship-trained minimally invasive gynecologic surgeon with an ABOG focused-practice designation in MIGS. Endometriosis is listed as a primary specialty on her Mayo Clinic profile, and her clinical interests specifically name advanced endometriosis, extrapelvic endometriosis, obliterated cul-de-sac cases, and involvement of the intestines, urinary tract, diaphragm, and thoracic cavity. Healthgrades treatment frequency data shows she treats endometriosis more often than similar providers.

Her fellowship was completed at Mayo Clinic Arizona under Dr. Javier Magrina, a widely recognized figure in advanced gynecologic surgery. Nancy's Nook confirms her listing. She is currently Chair of the Department of Medical and Surgical Gynecology at Mayo Clinic Arizona and holds a professorship at Mayo Clinic College of Medicine and Science. She has publicly stated: "I cannot take care of 10% of the female population and we need to increase access by increasing the number of individuals who understand endometriosis," which reflects an orientation toward the disease as a systemic problem, not just a surgical one.

Excision surgery via robotic and laparoscopic approaches

Excision of endometriosis is explicitly listed on her Mayo Clinic profile across three categories: standard, advanced, and extrapelvic. Both robotic and laparoscopic surgical approaches are performed. She was a co-investigator on the LAROSE trial, a multicenter randomized controlled trial comparing laparoscopic and robotic surgery for endometriosis, published in 2017. Patient accounts describe surgeries ranging from approximately two hours for pelvic-only cases to five or more hours for complex cases involving thoracic, bowel, and diaphragmatic involvement.

One published paper co-authored with her mentor Dr. Magrina addresses nerve-sparing techniques in gynecologic surgery, relevant for patients with deeply infiltrating disease near pelvic nerves.

Extrapelvic disease including thoracic, diaphragmatic, and pericardial endometriosis

Beyond standard pelvic endometriosis, Dr. Wasson has documented surgical and research experience with some of the rarest and most complex endo presentations. She has published on endometriosis of the spleen, Morrison's Pouch (liver-diaphragm space), bowel obstruction caused by endometriosis, diaphragmatic endometriosis, and pericardial endometriosis (endometriosis affecting the lining of the heart). She published a case report in 2016 on robotically-assisted resection of pericardial endometriosis, and Nancy's Nook has specifically noted her team's experience with this rare presentation.

She also treats adenomyosis, chronic pelvic pain, and ovarian cysts, and has published on the concurrent rates of adenomyosis and endometriosis. Fertility optimization and uterine preservation for patients with endometriosis are listed as distinct clinical interests on her Mayo profile.

Full team for complex cases; collaborates with radiology, thoracic surgery, and colorectal

Multidisciplinary care is a named clinical interest on Dr. Wasson's Mayo Clinic profile, and patient accounts consistently reflect this in practice. One patient reported a five-hour surgery that included a thoracoscopy (a procedure to inspect the thoracic cavity) for diaphragmatic involvement, requiring coordinated care with thoracic surgery. Another reported that Dr. Wasson's team was specifically prepared in advance for potential bowel involvement. Stage 4 cases involving the colon, uterus, ovaries, tubes, and vaginal tissue have been treated in single surgeries.

Her published research reflects the same model. A 2024 paper she co-authored in the Journal of Osteopathic Medicine directly addresses the need for a multidisciplinary approach to endometriosis management. She also collaborates with dedicated radiology colleagues on preoperative imaging for endo detection, presenting joint research with a Mayo Clinic radiologist at the 2025 ACOG annual meeting on imaging-surgery collaboration for endometriosis.

Ask directly

  • Do you recommend pelvic floor physical therapy as part of treatment, and do you have providers you refer to?

Uses advanced preoperative MRI; has publicly stated standard imaging misses most endo

Dr. Wasson has been direct in public forums about the limitations of standard diagnostic imaging for endometriosis. In a 2025 interview at the ACOG annual meeting, she stated that she was taught in residency that endometriosis looks like a powder burn lesion, "but really that's only about 25% of the time" - meaning that typical presentation taught to trainees is the minority of actual endo appearances. She has also co-presented research specifically on collaboration with radiology to improve endo detection before surgery.

Patient accounts describe MRI being ordered as part of standard pre-surgical evaluation. In one case, an outside pelvic MRI that had been called negative was reviewed by Dr. Wasson's team, who identified endometriosis, enlarged pelvic veins suggesting pelvic congestion syndrome, and suspected adenomyosis that had been missed. She is also a co-author on a published paper specifically addressing intraoperative deep pelvic ultrasound for detection of ileocecal endometriosis, a technique for identifying bowel involvement during surgery. A separate paper she co-authored addresses revising the conventional diagnostic algorithm for endometriosis.

Ask directly

  • What is your process for diagnosing endo in a patient who has never had surgery?

More than 70 peer-reviewed publications and 200 invited lectures; active on social media and podcasts

Dr. Wasson is among the most publicly active endometriosis educators in the United States. She maintains personal social media accounts on Instagram (@meganwassondo), TikTok (@drmeganwasson), and Facebook, producing content directly as herself rather than through a hospital or practice channel. She appeared on the EndobBattery podcast in July 2025 for a 57-minute episode titled "Endometriosis Through the Ages: From Teens to Menopause," covering endo at every life stage, the limitations of birth control as treatment, the persistence of endo through menopause, hormonal therapy after surgery, and training the next generation of surgeons.

She has been featured in multiple Contemporary OB/GYN interviews, including a May 2025 piece on advancing endometriosis care through imaging, surgical precision, and mentorship. She also appears in a Mayo Clinic patient-facing video explaining endometriosis. Multiple YouTube videos featuring her content are publicly available.

Her conference presence is substantial. At the 2025 ACOG annual meeting she delivered two presentations: one on identification and excision skill-building for endometriosis, and one on radiology collaboration for endo detection. She has served as a Stream Advisor for FIGO Cape Town 2025, is a member of the FIGO Council, chairs the Minimal Access Surgery Committee at FIGO (2022 to present), and has been on the AAGL Endometriosis Special Interest Group Committee since 2014. She has received multiple AAGL and SGS best paper awards across her career.

Selected endo-specific published research includes work on endometriosis of the spleen (2025), bowel obstruction caused by endometriosis (2025), deep infiltrating endometriosis in Morrison's Pouch (2024), concurrent rates of adenomyosis and endometriosis, intraoperative ultrasound for bowel endo detection, diaphragmatic endometriosis visualization, pericardial endometriosis resection (2016), and the LAROSE randomized controlled trial comparing surgical approaches. ResearchGate lists 122 research works with 586 citations.

Patterns Across Patient Feedback


Positive pattern

Mixed or notable

Recurring concern

Patients consistently describe feeling believed and thoroughly heard, often after years of being dismissed by other providers. This pattern appears across Nancy's Nook, Healthgrades, and patient community sources.

Multiple accounts describe complex or previously missed disease being identified at the first evaluation, including in patients whose outside imaging had been read as negative. MRI review is part of the initial consultation process.

Several patients describe advanced stage 4 disease with multi-organ involvement being treated in a single surgery, including cases involving the bowel, bladder, diaphragm, thoracic cavity, and appendix.

Patients who traveled across the country for care consistently report that the distance was worth it. Out-of-state patients from Wisconsin and other regions appear in multiple accounts.

Post-surgical follow-up with Dr. Wasson directly is noted in multiple accounts, including one patient who described being visited by Dr. Wasson personally during a two-day hospital stay after surgery.

Responsive communication is noted across multiple accounts. One patient described being able to reach out with quick response throughout the process, and another specifically noted post-portal follow-up after an appointment.

As a fellow training program, initial scheduling contact may be with a fellow rather than Dr. Wasson directly. One account notes being directed to a fellow for consultation while Dr. Wasson was booked several months out. This is standard at academic training programs and patients who want to confirm Dr. Wasson will personally perform their surgery should ask directly when scheduling.

Wait times are noted as several months in some accounts. As of April 2026, the practice accepts self-referrals with no primary care referral required.
No recurring concerns or negative patterns were identified across any review platform or patient community source reviewed for this profile.

Personally present at follow-up; patients seen postoperatively in hospital

Patient accounts describe Dr. Wasson visiting personally during hospital stays after surgery. One patient who required a two-day stay after a complex diaphragmatic case noted being visited by Dr. Wasson's entire team, including Dr. Wasson herself. Another patient described a post-op appointment with Dr. Wasson directly, at which surgical findings were reviewed and photographs of the endometriosis were shared.

Ask directly

  • How soon after surgery is the first follow-up appointment, and do you see patients personally at that visit?
  • For how long do you continue to see patients after surgery?
  • Do you recommend hormonal treatment or birth control after surgery, and what is your reasoning?

Treats endo as a disease that deserves serious care at every life stage

Dr. Wasson has stated publicly: "If your period is more than an inconvenience, something is wrong." That framing reflects a practice philosophy oriented toward taking symptoms seriously from the start rather than normalizing pain or defaulting to hormonal management as a first and final answer. In the EndobBattery podcast, she addressed the full arc of endo across life stages, including adolescent diagnosis, fertility considerations, and the persistence of endometriosis through and after menopause, pushing back on the common misconception that menopause resolves the disease.

Fertility optimization and uterine preservation are explicitly named as clinical interests on her Mayo Clinic profile, and multiple patient accounts describe her treating patients who wanted to keep their ovaries or preserve their uterus. She has also treated patients who chose hysterectomy after careful discussion, suggesting a shared decision-making approach rather than a one-size approach to surgical planning. Her stated goal of training more surgeons who understand endometriosis points to an orientation toward the disease that extends beyond individual patient care.

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FAQ

Why did you make this directory?

Who you choose for your surgeon matters more than most people realize. The wrong surgeon can mean missed disease, unnecessary surgeries, and years of pain that didn't have to happen. This is what happened to me.

Finding the right one is not a guarantee, but can drastically improve the outcome of your surgery. This directory pulls together publicly available information and patient-reported patterns in one place, so you can walk into a consultation prepared.

Where did you find this information?

This directory was built using publicly available information from a wide range of sources, including surgeon websites, medical publications, advocacy resources, social media, and submissions from my social media community.

If they show on this list, it means a surface-level check confirmed endometriosis is a primary focus of their practice.. Once their name is linked to a profile, it means I have completed and published my deeper independent research on that surgeon.

How are surgeons selected?

Most OBGYNs are trained to do a lot of things: deliver babies, manage general gynecological care, perform routine surgeries. This is important work, but Endometriosis is a different skill set.

Endo can look different in every patient, hide in unexpected places, and requires specific training and a high volume of cases to recognize and remove well. A surgeon who splits their time across general obstetrics and gynecology is not the same as one who has made endometriosis and similar conditions the focus of their practice.

Every surgeon listed here publicly identifies endometriosis as a high focus of their work, and that has to be verifiable through public sources: their own website, a hospital profile, a professional directory, published interviews, or similar.

Can a surgeon be removed from the directory?

Surgeons are included on the list based on the criteria listed above.

Personal conduct, social media behavior, and online controversy are not criteria for inclusion or removal. The directory exists to help patients find skilled surgeons, not to weigh in on personality or public opinion.

A surgeon could be removed if I find a credible, documented pattern of patient safety concerns, loss of medical license, or conduct that directly impacts the quality or safety of patient care.

Why isn't my surgeon listed?

Absence from this directory doesn't mean a surgeon is unqualified. It means I either haven't found them yet, or couldn't find enough public information to confirm that endometriosis as a genuine focus of their practice. The directory is a living resource and will keep growing with your help.

Use the "submit feedback" button above to suggest a surgeon for review or share your experience with a surgeon.

Can I suggest a surgeon?

Yes, please! Use the "submit feedback" button above.

A submission is a request for consideration, not a guarantee of inclusion. Every surgeon goes through the same research process regardless of how they came to our attention, whether that's a patient suggestion, a surgeon submitting themselves, or my own research. The information found is the information published, good or bad.

I have a surgery coming up but the surgeon profile isn't ready!

Send me a message on Instagram or TikTok (@wulfwomen), I am happy to skip ahead and help research your surgeon before your surgery date. <3

If the surgeon you're looking for doesn't meet the criteria, I will let you know. If they do, I will create the full profile and publish it here on this page.

How often is this updated?

I plan to go through the list every three months and make updates. I hope to add feedback as I get it, but I am only one person and it may take some time.

What should I do if information in a profile is wrong?

Please let me know via the "submit feedback" button above.

I really appreciate all feedback and more eyes on this. I've worked very hard to make sure this is accurate, but there is always a chance something could slip through. I review all submissions and make corrections as quickly as I can.

There's no surgeon in my city or state!

Check out the surgeons in your neighboring states. Many them operate out of multiple locations.

How do you collect patient feedback?

Patient feedback is pulled from publicly available sources like reviews and community forums. Some feedback is submitted directly to me via the "submit feedback" button above.

I take this feedback and fold it into the summaries in the profiles, rather than including every review word for word.

Why are some profiles more detailed than others?

Profile depth reflects what's publicly available, not the quality of the surgeon. That said, a sparse profile is worth paying attention to. Surgeons who specialize in endometriosis tend to have a presence in the patient community. If a profile is thin on reviews and information, that's a sign to do more research and ask a ton of questions.

Is this directory AI-assisted?

Yes, and I'll be upfront about it. I could not have built this without AI.

I am doing the research on each surgeon, then asking AI to check the internet for search for additional public sources.

Then, I ask AI to help with the first draft of the profile content. I read it and fix it manually to make sure it's accurate based on my research.

Lastly, I ask AI to build the code for me to make the profiles look nice on the website.

How is this different from Nancy's Nook or iCareBetter?

I have the utmost respect for Nancy's Nook, she helped me find my specialist. I have had her page listed on my website for a year now, but noticed very few people are clicking the link I provided. The younger generations aren't using facebook as much as we used to and I wanted something easier to access for all ages.

I also wanted to provide a service that could pull information from all over the internet and make it easy to view in one place.

iCareBetter has great information, but much of the information on there is surgeon submitted or sponsored. The Wulf Women list is a place for all information to be found, regardless of where it came from.

Do you make money from this directory?

No. I will never accept payment from any surgeon listed here, and this directory does not generate income for me.

Who are you?

My name is Debrah (Deb) Stark. I'm an endo patient who learned the hard way how important specialty care is. I promised myself after my second surgery I would do everything I could to help other women navigate endometriosis care. My mission is to give women enough information to help them make the right medical decisions for themselves.

You can find me on TikTok and Instagram as @wulfwomen .

“For the strength of the Pack is the Wolf, and the strength of the Wolf is the Pack.”
-Rudyard Kipling,The Jungle Book