Our Team

San Francisco Birth Center is committed to comprehensive, intimate, holistic midwifery care. Our midwives have chosen to work at SF Birth Center because this setting offers a unique opportunity to provide care in a way that encourages personal hands-on interaction and collaborative decision-making. Our greatest joys are watching people become empowered by birth and helping to build healthy families.

Nancy Myrick


Director and Co-Founder

Nancy Myrick is a Certified Nurse-Midwife and has been the director of San Francisco Birth Center since 2015. She has practiced home birth midwifery since 2003 with Rites of Passage Midwifery. Nancy began attending births as a doula in 1993, received her RN in 2000, and completed her training in midwifery in 2003 through the UCSF Nurse Midwifery Education Program. She has attended hundreds of births in homes, birth centers, and hospitals and believes that choice in childbirth helps parents begin the long path toward building great humans!

Mason Wilson-Tanev 


Mason Wilson-Tanev comes to us with over 20 years of experience catching babies. She initially trained at a birth center in the East Bay and has had an active home birth practice since 2001. She received her Masters in Anthropology and has begun a PhD program focused on new methods of supporting folks with a history of birth trauma. She is also trained in massage therapy, hypnotherapy, IBS FODMAP counseling, and lactation counseling.

SF Birth Center Serena Saeed-Winn

Serena Saeed-Winn


Serena is a Mother, a Certified Nurse Midwife, a Women’s Health Nurse Practitioner, and an International Board Certified Lactation Consultant. She has also received advanced training in perinatal mood disorders from Postpartum Support International (PSI). Serena became a midwife in 2009, earning her degree from UCSF. Since becoming a midwife she has worked at Sage Femme Birth Center, St. Luke’s Hospital (now CPMC Mission Bernal), The Homeless Prenatal Program and with us at San Francisco Birth Center, where she provides postpartum and lactation care. She is also the founder and primary midwife of The KAZ Project, a Midwifery Corporation. As a midwife and mother of three, she understands the postpartum from the perspective of a provider and a parent. The KAZ Project was created as a way to empower parents to find their own path while being uplifted by a supportive and unique community. When Serena is not working with families she enjoys arts and crafts with her daughters, sewing, hiking and sailing on the bay with her husband and family. 

Savannah Kingsmith


Savannah Kingsmith comes to us from Columbia University’s midwifery program where she graduated with honors with a Doctorate in Nursing. Savannah has midwifery experience at Sutter East Bay Medical Group, and prior to becoming a midwife she worked in public health focusing on maternal trauma, stress, mental health and food insecurity in pregnancy.

Savannah returns to SF Birth Center in 2024 after spending last year at home taking care of her new baby.

Sara Van Acker



Sara is a Certified Nurse-Midwife and Women’s Health Nurse Practitioner who completed her training at UCSF. Her path to midwifery began as a doula at San Francisco General Hospital and has included various international and domestic projects, including a midwifery fellowship at Holy Family Birth Services in Weslaco, TX and as a nurse-midwife at Santa Rosa Birth Center. Sara’s practice is rooted in the strong belief that families deserve holistic, client-centered choices for their birth and reproductive health care services, and she is overjoyed to have co-founded San Francisco Birth Center as an alternative option to childbearing families in San Francisco. Sara is also mama to two girls, experiences that have deepened her commitment to supporting families through the transitions of parenthood.


Alexa Almira

Office & Medical Assistant

Alexa is passionate about reproductive rights, education, and informed decision-making. She graduated from San Francisco State University with a BS in Technical & Professional Writing, which she uses to help folks gain better access to information and resources they need to make informed choices about their body and mind in healthcare settings. She is incredibly thankful to SF Birth Center for welcoming her into a precious family of not just midwives, but beautiful parents and parents to be. Alexa spends her free time as a lightboard operator for shows and competes in Tahitian Drum competitions.

Maddison McCauley

Social Media & Admin Assistant

Maddison has a passion for women’s health and birth work. She completed her degree in Public Health from American University in Washington D.C. Maddison is a certified Birth Doula, Placenta Encapsulater, and Childbirth Educator. When not at the birth center, she can typically be found drinking good coffee, binge reading books in one night, and hanging out with her baby girls, cat, and handsome husband. With a background in Financial Institutions and Marketing, Maddison is very excited to “get in to the birth world.” She is so thankful for the opportunity to meet and work with the lovely parents (and parents to be) of SF Birth Center.

Licensed by the State of California

Proud Member of AABC

2300 Sutter St. Suite 301

San Francisco, CA 94115