 Our
locations
Our clinics are members of the Society of Assisted Reproductive
Technology. This society represents the highest standard of testing for a
fertility clinic.
A caring and expert team
 Mark F. Severino, MD
“It takes more than modern medical technology to realize a couple's dream
of becoming parents. I like to create an environment which nurtures the art
and science of fertility care which is a very personal issue for so many
couples.”
For more than 20 years, Mark Severino, MD, a board-certified and
highly-experienced reproductive endocrinologist, has been helping couples
address their infertility issues. Well-respected for his work and numerous
published articles on related topics, Dr. Severino brings to Wisconsin the
experience he has gained through his practices in New York, Oregon and
Nevada.
After medical school, he completed his residency at the State University
of New York in Buffalo and received extensive training in the United States
and abroad in infertility and microsurgery. He completed his fellowship in
reproductive endocrinology at Oregon Health Sciences University in Portland,
Oregon followed by an appointment with the Department of Obstetrics and
Gynecology at the University of Nevada School of Medicine in Las Vegas.
Dr. Severino co-founded the Nevada Fertility Center for Advanced
Reproductive Endocrinology and Surgery where he treated advanced infertility
and helped many couples achieve their dream of becoming pregnant through the
use of in vitro fertilization and assisted reproductive technologies.
He joined Aurora Health Care in 2002 where he developed his vision of the
premiere, state-of-the-art fertility service where patients receive the most
advanced and comprehensive treatment available in a friendly, respectful
environment. In 2006, Dr. Severino was voted into the “Guide to America's
Top Obstetricians and Gynecologists” in Reproductive Endocrinology and
Infertility.
Dr. Severino is the clinical director of Aurora Fertility Services in
Green Bay and West Allis.
 Ellen Hayes, MD
“My goal is to provide a respectful and comfortable environment to
help each individual realize their dream of becoming a parent.”
As a reproductive endocrinologist, Ellen Hayes, MD works with couples
experiencing infertility issues. While she addresses the physical obstacles
to conception, she is always concerned about the emotional impact that comes
hand-in-hand with issues related to an individual's ability to conceive and
carry a child. She is experienced in all aspects of reproductive
endocrinology and infertility including assisted reproductive technology
(ART) procedures and advanced laparoscopic/hysteroscopic surgery.
After graduating from medical school at Loyola University – Chicago,
Stritch School of Medicine in Maywood, Illinois, Dr. Hayes completed an
obstetrics/gynecology residency at the Medical College of Wisconsin in
Milwaukee. During her residency, she was recognized as Outstanding Resident
in laparoscopic surgery. Dr. Hayes then went on to continue her advanced
training with a fellowship in reproductive endocrinology and infertility at
Emory University Medical School in Atlanta, Georgia. She has published
several professional articles and worked on research projects related to
infertility.
A native of Michigan, Dr. Hayes currently resides in Milwaukee with her
husband and children. In her free time she enjoys travel, vocal music and
spending time with her family.
 Frank
Wittmaack, MD
"My patients deserve the best possible chance of becoming parents. I
try to help them one couple at a time, realizing the importance of
individualized treatment plans fitting their emotional, medical, and
economical situation."
As a board certified reproductive endocrinologist, Frank Wittmaack, MD,
specializes in the care and treatment of women who have difficulty becoming
pregnant or who have other reproductive or hormonal disorders.
Prior to completing his OB/GYN residency at the University of Wisconsin,
he spent a year conducting hormonal research at the University of Chicago.
He went on to complete a fellowship in reproductive endocrinology at the
University of Pennsylvania. Dr. Wittmaack is trained in medical, as well as
microsurgical, treatment of infertility.
Prior to coming to Wisconsin he had been a clinical director in New York
and Pennsylvania practices for over 10 years and has received several
excellence awards. Dr. Wittmaack has published numerous articles, which have
been presented at international conferences. Most recently he authored a
textbook chapter on hysteroscopy.
Dr. Wittmaack is married and lives in Menomonee Falls. He enjoys
swimming, biking, travel and spending time with his children.
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