Dr Ana Sierra

Endometriosis Specialist, Excision Surgeon, Minimally Invasive GYN Surgeon

I am Dr. Ana Sierra, a dedicated Neuropelveologist at the Endo Global Group. With years of experience, I specialize in the multidisciplinary treatment of endometriosis, focusing on addressing the complex neural aspects of the condition. My expertise lies in integrating neurological insights with overall patient care, ensuring a comprehensive approach to treatment. My commitment to my patients is unwavering, as I strive to provide them with the highest standard of care and support throughout their journey.

Bladder Endometriosis

Ureter Endometriosis

Diaphragmatic Endo

Deep Endometriosis

Endometrioma

Fertility

Bowel Endometriosis

"...underwent surgery in December 2021, and in March 2022, I got my long-awaited positive pregnancy test. It felt like a dream to have become pregnant so quickly and naturally because my first pregnancy had been through assisted reproduction. I have been holding my baby in my arms for 5 months now, and I always thank God for placing Dr. William and his team in my path."

Priscila Ongaratto

"When I sought personalized care, Dr. William quickly discovered deep endometriosis near the intestines, bladder, outer wall of the uterus, a cyst next to the left ovary, and a blocked right fallopian tube! I began treatment with Dr. William in mid-October 2022, had my surgery in June 2023, including the removal of 30cm of the intestine with Dr. Reitan's team, and today, just over 2 months after the surgery, I found out that I'm 1 week pregnant!
"

Katty Jane

"The recovery was excellent, and in the first few weeks, I noticed the difference of having an intestine without endometriosis adhesions. Four months later, I became pregnant naturally, and I am now 8 weeks along, everything is going very well. Thank you, Dr. William, may God continue to work through your hands.
"

Marícia Sequeiros

"My recovery has been excellent, without any complications. Both doctors and the secretary assisted me with everything I needed during the postoperative period. And now, I feel ready for a new phase in my life. Without pain, without symptoms, and soon with a baby. My gratitude to the entire team that supported me in such a compassionate manner. May God illuminate your journey every day, and may you help thousands of women regain the quality of life we lost due to endometriosis. G R A T I T U D E!!!
"

Liliane Meneguetti

What our endometriosis patients said about us

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Rachel’s Services

They are individuals who have entrusted us with their health and well-being

Primary Care

Management of common medical conditions such as hypertension, diabetes, and allergies.

Specialized Consultations

Expert advice and treatment for specific medical concerns, ranging from cardiology.

Minor Procedures

inor surgical procedures such as mole removals, wound care, and joint injections.