Meet The Team

The Women's Cancer Center is a recognized leader in the fight against gynecological cancers including ovarian, breast and uterine cancer. As a full member in the Gynecologic Oncology Group, we offer both standard approaches and clinical trials for those who qualify.

“Our surgeons are pioneers in the research and are ready for any challenge for both patients and their families.”

Nick M. SpirtosFounder | CEO
CEO, Founder

Nick M. Spirtos

M.D. | Female Pelvic Medicine & Reconstructive Surgery

Nick M. Spirtos, M.D. is the Medical Director of the Women’s Cancer Center of Nevada, the largest group of gynecologic oncologists in the state. Dr. Spirtos is one of 18 physicians in his family and did his fellowship in gynecologic oncology at Stanford University. He remained on the full-time and clinical faculty at Stanford from 1987 until he moved to Las Vegas in 2005. He served as the Director of the Division of Gynecologic Oncology at the University of Nevada School of Medicine from 2005 until 2010 and now is an Adjunct Clinical Professor there.


Dr. Spirtos has authored over 60 peer-reviewed publications and has written numerous chapters in internationally renowned textbooks. He serves on many editorial boards and was recently named the first American Editor of Bonney’s Textbook of Gynaecologic Surgery, which has been in continuous publication since 1911.


The Women’s Cancer Center of Nevada is also the only full-member institution in the Gynecologic Oncology Group (GOG) in Nevada and has been one of the leading institutions in this co-operative group. Dr. Spirtos serves as the Chairman of the Gynecologic Oncology Committee in the GOG as well as being a member of the Uterine Corpus Committee. He has previously served on the Ovarian Cancer Committee as well as the Membership Committee. On behalf of the GOG, Dr. Spirtos authored or co-authored almost every article in the field of minimally invasive surgery. He has developed many of the procedures used today in minimally invasive surgery and was one of the first gynecologic oncologists certified in robotic surgery. Along with Dr. Scott Eisenkop, Dr. Spirtos has written many of the landmark papers regarding the role of surgery in the treatment of advanced ovarian cancer.


Recently he was named to the University Medical Center Advisory Board. He and the Women’s Cancer Center of Nevada were featured on 60 minutes due to their commitment to the care of patients who had lost their ability to be cared for by the County Hospital (UMC).


Dr. Spirtos has twins, Alexandra and Michael who are studying Medicine and Law respectively. Dr. Spirtos spends most of his time off writing, lecturing, or traveling with his family.

Co-Founder, Director

Geoffrey C. Hsieh

M.D. | Female Pelvic Medicine & Reconstructive Surgery

Jeff Hsieh received his Bachelor of Science degree from the University of Michigan where he was an honor graduate and a member of the Psi Chi National Society. In 1993, Jeff attended the University of Medicine and Dentistry of New Jersey and received his Doctor of Medicine from the Robert Wood Johnson Medical School. After graduation, Jeff participated in a postgraduate program at the University of Illinois from 1993-’97 before heading to Los Angeles County-Southern California School of Medicine where he studied under Dr. John Klutke until 2000.


Jeff belongs to several professional organizations including the Clark County Ob/Gyn Society, Member American Medical Association and Fellow American College of Obstetricians and Gynecologists, among others. He has also received certifications from the Diplomate, American College of Obstetrics and Gynecology, National Board of Medical Examiners, Nevada State Physicians and Surgeons License, and the California State Physician and Surgeon License.

Aimee C. Fleury

MD, MPH | Gynecologic Oncology

Dr. Aimee C. Fleury is a board-certified gynecologic oncologist. She completed her fellowship at Johns Hopkins Medical Institution in 2012, a medical degree at the University Of Nevada School of Medicine in 2005 and also has completed a Masters in Public Health at Johns Hopkins University, Bloomberg School of Public Health in 2010.

Aimee C. Fleury, M.D., MPH has been involved in several professional and academic societies throughout her career. Among her activities, she is a Fellow-in-Training for the Society of Gynecologic Oncologists and a 2011-2012 HERA Foundation OSB1 Grant Award Recipient.

Dr. Aimee C. Fleury is also proficient in reading, writing and speaking the Spanish language; a useful skill for her community outreach efforts in foreign countries and time spent studying abroad throughout her education.

Natalie S. Gould

M.D. | Gynecologic Oncology

Dr. Natalie Gould is a board-certified gynecologic oncologist. She relocated to Las Vegas in 2010 from Virginia, where she spent five years serving as an assistant professor in the OB/GYN division of gynecologic oncology at Carilion Clinic in Roanoke, Va. Originally from North Carolina, Dr. Gould received her undergraduate and medical education at University of North Carolina, Chapel Hill. She completed a fellowship in gynecologic oncology at University of Oklahoma Health Sciences Center in Oklahoma City. Dr. Gould also participated in current research as a principal investigator of the Carilion Gynecologic Oncology Research Division in Virginia.

Richard Wasserman

M.D. | Female Pelvic Medicine & Reconstructive Surgery

Leslie K. Browder, M.D. completed her medical degree (M.D.) and general surgery residency at the University of Nevada School of Medicine from 1995-2006. She went to the University of Southern California to complete her fellowship in Colorectal Surgery in 2007. She then returned to the University of Nevada School of Medicine where she practiced Colorectal Surgery as an Assistant Professor for 7 years.

Dr. Browder is a board certified general surgeon (American Board of Surgery) and board certified colorectal surgeon (American Board of Colorectal Surgery) with Fellowships in the American College of Surgeons (FACS) and the American Society of Colorectal Surgeons (FASCRS).

Dr. Browder specializes in diseases of the colon, rectum and anus. She treats various gastrointestinal cancers such as rectal cancer, colon cancer, and anal cancer. She also specializes in the treatment of diverticulitis, Crohn’s disease, ulcerative colitis, pelvic floor disorders, fecal incontinence, hemorrhoids, and fistulas. She is a leader in minimally invasive surgery including laparoscopic and robotic surgery. She also offers transanal minimally invasive surgery for polyps and early rectal cancer. Office based procedures for hemorrhoids are provided, as well as screening colonoscopies for cancer.

Alexandra Spirtos

M.D. | Gynecologic Oncology

Alexandra N. Spirtos, M.D is a gynecologic oncologist who completed her residency and fellowship training at the University of Texas Southwestern and Parkland Hospital in Dallas, Texas. She returned home to Las Vegas to join the Women’s Cancer Center. She is a member of the Society of Gynecologic Oncology and has served on both the Health, Policy and Socioeconomic Committee and the Clinical Practice Committee.


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