Our Genetic Counselors

Melissa K. Maisenbacher, MS, CGC

Melissa K. Maisenbacher, MS, CGC

Ms. Maisenbacher is a board-certified genetic counselor who has worked in pediatric genetics for the past nine years at both the Children’s Hospital of Philadelphia and the University of Florida. She also has held consulting position for Gene Dx, Inc. and the Children’s Hospital of Boston. In addition to general pediatric genetics, she specializes in the 22q11.2 deletion syndrome, inherited cardiomyopathies, Barth syndrome and Pompe disease. She has published numerous articles on a variety of clinical genetic disorders. Her interests in PGS and PGD stem from counseling families with children affected by single gene disorders and personal relationships with couples with infertility. Ms. Maisenbacher currently serves on the board of the International 22q11.2 Foundation. She received her B.S. from the University of Notre Dame and her M.S. in genetic counseling from Arcadia University.


Jennifer B. Saucier, MS, CGC

Jennifer B. Saucier, MS, CGC

Ms. Saucier comes to Natera from Genzyme Genetics where she practiced prenatal and cancer genetic counseling. Previous to her role at Genzyme, she was employed as the sole genetic counselor at Scott and White Memorial Hospital in Temple, TX. In addition to providing genetic counseling services in prenatal, cancer and pediatric clinics at Scott and White, she gained valuable experience as an alternate on the Institutional Review Board and a member of the hospital’s genetic testing task force. Ms. Saucier is excited to bring this expertise to Natera where she can assist patients in navigating the changing world of PGD. Ms. Saucier is a board certified genetic counselor and a member of both the National Society of Genetic Counselors (NSGC) and the Texas Society of Genetic Counselors (TSGC). She holds a B.S. in Genetics from Texas A&M University and a M.S. in Genetic Counseling from the University of Texas Health Science Center in Houston.


Katrina Merrion, MS, CGC

Katrina Merrion, MS, CGC

Ms. Merrion is a board certified genetic counselor who comes to Natera from The Children’s Hospital of Colorado where she provided genetic counseling to pediatric and adult patients. In addition to general genetics, she specialized in inherited retinal dystrophies and ocular malformations. Ms. Merrion also has experience in research settings. She was the study coordinator for the Colorado Intellectual and Developmental Disabilities Research Center (IDDRC) Translational Neuroscience Nexus (Nexus) for the Study of Intellectual and Developmental Disorders, and has also worked as a research coordinator for different studies involving congenital defects of cognition and physical development. Ms. Merrion also has experience in laboratory genetic counseling through a previous position at Kimball Genetics Laboratory. Her interests in PGD stem from counseling individuals and families affected by chromosomal and single gene disorders. She received her B.S. in Molecular, Cellular and Developmental Biology from the University of Colorado at Boulder and her M.S in Biophysics and Genetics from the University of Colorado Health Sciences Center.


Nina Wemmer, MS, CGC

Nina Wemmer, MS, CGC

Ms. Wemmer is a board certified genetic counselor with experience in both clinical and research settings. Prior to joining Natera she held a genetic counseling position at The Children’s Hospital of Colorado. There she coordinated the care for pediatric and adult patients in a variety of clinical settings including general pediatric, regional outreach, metabolic and specialty clinics. She has specific experience working in Skeletal Dysplasia, Endocrine-Genetics and Phenylketonuria (PKU) multidisciplinary clinics. Ms. Wemmer also has experience in clinical research and has previously worked as a study coordinator at the Colorado Sickle Cell Research and Treatment Center. Ms. Wemmer holds a B.S. in Cellular and Molecular Biology from the University of Washington and a M.S in Biophysics and Genetics from the University of Colorado Health Sciences Center. Ms. Wemmer has chosen to work in a PGD lab setting because she enjoys the challenge of keeping up with the constantly evolving technology and also enjoys helping patients make informed decisions regarding reproduction.


Dinah Clark, MS, CGC

Dinah Clark, MS, CGC

Ms. Clark is a board certified genetic counselor who previously worked in pediatric genetics for nine years at The Children’s Hospital of Philadelphia. While there her special interests included advancing clinical care and coordinating research studies on The Cornelia de Lange Syndrome (CdLS), the genetics of hearing impairment, and various microdeletion syndromes. She has numerous publications in these areas of work. She is excited to bring her experience in genetic testing and counseling to families pursuing reproductive testing, assisting them in making informed decisions to reach their goals. Ms. Clark received her B.S. in Biology and Psychology from Rutgers University and her M.S. in genetic counseling from Arcadia University.


Maggie Westemeyer, MS, CGC

Maggie Westemeyer, MS, CGC

Maggie Westemeyer, MS, CGCMs. Westemeyer is a board certified genetic counselor who comes to Natera with 12 years clinical experience. At the University of Illinois she counseled patients in prenatal, pediatric and cancer genetics clinics and taught genetics to physicians in training and other professionals. Her interests in helping couples have healthy children arose from her time working with families who had a child born with a genetic disorder. Ms. Westemeyer received her BS in Biology from the University of Notre Dame, and her MS in Genetic Counseling from the University of Pittsburgh. She is excited to be part of Natera's team and enjoys the challenge of learning new technologies in genetic testing.


Elizabeth Repass, MS, CGC

Elizabeth Repass, MS, CGC

Ms. Repass is a board-certified genetic counselor who comes to Natera from Eastside Maternal Fetal Medicine in Seattle where she practiced as a prenatal genetic counselor for the past 11 years. She also worked at Seattle Reproductive Medicine in their egg donor program as well as providing genetic counseling for their infertility patients. Ms. Repass brings her clinical skills from the areas of prenatal and infertility genetics to Natera to help both patients and providers understand and correctly interpret reproductive genetic test results. She received her BS in Secondary Education and Biology from Northwestern University and her ScM in Genetic Counseling from Johns Hopkins University and the National Institutes of Health.


Katie Hashimoto, MS, CGC

Katie Hashimoto, MS, CGC

Ms. Hashimoto is a board certified genetic counselor with background in both clinical and laboratory genetics. She comes to Natera from UCSF Medical Center where she served as the genetic counselor for the cytogenetics and molecular diagnostics laboratories. Prior to her time at UCSF, Ms. Hashimoto provided prenatal counseling services in the San Francisco Bay Area. She also held a contract position with Counsyl, Inc. as part of their team providing genetic counseling for expanded carrier screening panels. Ms. Hashimoto is excited to bring her previous experience with helping both patients and providers understand reproductive test results to Natera. She received her B.S. in Genetics from the University of California at Davis and her M.S. in Genetic Counseling from California State University at Stanislaus.

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