
Overview
Ivy L. Lersten, M.D., is board certified in obstetrics and gynecology (OB/GYN) and board eligible in reproductive endocrinology and infertility (REI). Dr. Lersten earned her medical degree at the University of Iowa Carver College of Medicine, graduating in the research distinction track. She then completed her residency in OB/GYN at the University of Colorado School of Medicine, Anschutz Medical Campus in Aurora, Colorado where she was also an education chief resident. She stayed at the University of Colorado to complete her REI fellowship. As an avid researcher, Dr. Lersten received ASRM’s Fertility Preservation Special Interest Group Prize Paper Award for her work on fertility preservation. The award-winning study, Ovarian Response and Anti-Mullerian Hormone in Fertility Preservation Versus Elective Oocyte Cryopreservation Cycles, concluded that patients with a recent cancer diagnosis can expect comparable results from fertility preservation treatment to those who are undergoing elective egg-freezing. She is interested in ovarian biology and furthered her knowledge studying ways to optimize ovarian tissue cryopreservation in fellowship which culminated in an international oral presentation at the Society of Reproductive Investigation. Dr. Lersten is a member of the American College of Obstetricians and Gynecologists (ACOG), the American Society for Reproductive Medicine (ASRM), and the Society for Reproductive Endocrinology and Infertility (SREI). Always ready to listen, provide options, and educate her patients, Dr. Lersten provides care at SGF Colorado’s Denver location. In her spare time, she enjoys playing tennis, cheering on Arsenal, and cooking.
Dr. Lersten is rated as an Experienced provider by MediFind in the treatment of Asherman Syndrome. Her top areas of expertise are Infertility, Endometrial Polyps, Sertoli Cell-Only Syndrome, and Asherman Syndrome.
Her clinical research consists of co-authoring 3 peer reviewed articles. MediFind looks at clinical research from the past 15 years.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- POS
- PPO
- EPO
- HMO
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- EPO
- POS
- HMO
- INDEMNITY
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER MEDICARE
- POS
- PPO
- EPO
- HMO
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MEDICARE MAPD
- OTHER COMMERCIAL
- PPO
- OTHER COMMERCIAL
- EPO
- HMO
- POS
- PPO
Locations
8200 E. Belleview Avenue, Suite 615-E, Greenwood Village, CO 80111
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
Shady Grove Fertility - Denver
Cassandra Roeca, M.D., earned her medical degree from the University of Colorado School of Medicine. She then started her postdoctoral training at Harvard Medical School, Brigham and Women’s Hospital/Massachusetts General Hospital to complete residency in Obstetrics and Gynecology. It was there that Dr. Roeca was awarded the Eman and Goldstein Pediatric Gynecology Award. A Colorado native, Dr. Roeca returned to the University of Colorado School of Medicine, Anschutz Medical Campus where she completed her fellowship in Reproductive Endocrinology and Infertility (REI). Dr. Roeca is board certified in obstetrics and gynecology and reproductive endocrinology and infertility. Dr. Roeca is passionate about fertility preservation in patients with cancer or medical diagnoses that place them at risk of infertility. Dr. Roeca is interested in researching solutions to help patients overcome infertility hurdles and fulfill their dreams of having a healthy baby. She is also an advocate for improving access to fertility services. An avid researcher, Dr. Roeca has authored several peer-reviewed publications on topics such as preimplantation genetic testing, fertility preservation, menopause and in vitro fertilization, as well as contributed to an article on ovulation. Her degree in molecular, cellular, and developmental biology, influences her expertise in the diagnosis and treatment of infertility for patients with cancer, genetically linked mutations, and transmitted diseases. Dr. Roeca is a member of several professional organizations, including the American Congress of Obstetricians and Gynecologists (ACOG), American Medical Association, American Society for Reproductive Medicine (ASRM), and Society for Reproductive Endocrinology and Infertility (SREI). She has also presented her research on birth outcomes, placental function and in vitro fertilization at several national meetings. Dr. Roeca sees patients at SGF Colorado’s Denver location. In her free time, you can find Dr. Roeca enjoying the Colorado mountains with her husband and three children as well as playing music. Dr. Roeca is rated as an Advanced provider by MediFind in the treatment of Asherman Syndrome. Her top areas of expertise are Infertility, Asherman Syndrome, Endometrial Polyps, Sertoli Cell-Only Syndrome, and Hysterectomy.
Robert Greene is a Reproductive Medicine provider in Littleton, Colorado. Dr. Greene is rated as an Advanced provider by MediFind in the treatment of Asherman Syndrome. His top areas of expertise are Infertility, Polycystic Ovary Syndrome, Ovarian Overproduction of Androgens, and Ovarian Hyperstimulation Syndrome.
Dana Ambler is a Reproductive Medicine specialist and an Obstetrics and Gynecologist in Denver, Colorado. Dr. Ambler is rated as an Advanced provider by MediFind in the treatment of Asherman Syndrome. Her top areas of expertise are Infertility, Endometrial Polyps, Asherman Syndrome, and Polycystic Ovary Syndrome.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- InfertilityDr. Lersten isAdvanced. Learn about Infertility.
- Experienced
- Asherman SyndromeDr. Lersten isExperienced. Learn about Asherman Syndrome.
- Endometrial PolypsDr. Lersten isExperienced. Learn about Endometrial Polyps.
- Premature Ovarian FailureDr. Lersten isExperienced. Learn about Premature Ovarian Failure.
- Sertoli Cell-Only SyndromeDr. Lersten isExperienced. Learn about Sertoli Cell-Only Syndrome.

