Centering Pregnancy Facilitators

Our facilitators are committed to helping you have the best pregnancy possible in an empowering and supportive community of Centering families.

Your facilitators will be with you throughout your pregnancy journey and are excited to support you as you grow your family. You'll have plenty of time to get to know each other in the coming months, but you can learn a little more in our short introductions below.

Facilitators N – Z


Dolly Pressley-Byrd, CNM. You’d be hard pressed to find a person who has met Dolly once and did not immediately want to be her friend. She thrives in forming relationships and maintaining loyalty. Her patients line up to see her, and she treats each one with the same amount of affection and kindness. Dolly is the proud wife of an amazing man who is WNC’s mosquito expert and the proud momma of two boys. She loves traveling, cooking and eating.  And she was a White House intern just prior to when Monica Lewinsky made that position infamous! She worked in the office of the VP and had the opportunity to work with Tipper Gore.


Kiran Sigmon, MD, has been with Centering at MAHEC since its earliest days.  She is on the faculty and loves working with Centering groups as they learn and grow together.  After 20 years of pregnancy care and delivering babies, she is pleased to say that Centering Pregnancy is the best advancement in medicine that she has seen in her career.  She believes we all are stronger when we work together.


Lauren Simmons, CMA, has been at MAHEC since 2016 and is excited to be part of the Centering team. She has a little girl that made her a mom back in 2010. Lauren was only 17 years old at the time and wished she could have been part of a program like Centering. She loves supporting people on their journey to parenthood. When Lauren was 5 years old, she could tumble and do a cartwheel on a balance beam. But don't ask her to do it now (she claims to have forgotten how).


Stephanie Stone, CMA, has been with MAHEC Ob/Gyn Specialists for several years and decided to become a Centering Pregnancy facilitator because it sounded like so much fun.  While she doesn’t have any children, being a Centering facilitator has given her a wonderful sense of family. She is grateful for all of the warm connections she has made in her Centering groups. Stephanie loves watching people become parents and couples become families.


Joann Vanderhagen, MA. It is impossible not to notice Joann’s presence in a room. She brings positive energy and spunk to any given encounter. Her main reason for working at MAHEC Ob/Gyn Specialists is the connection it allows her to feel to the women and babies she cares for. She loves adventure and facing challenges. In fact, she is the first to sign up for any warrior dash, kayaking endeavor or haunted trail that she can.


Theresa Wong, MD, is an ob/gyn resident who joined the MAHEC family this year. She is eager to walk through this life-changing journey with her patients and even more excited to get to know you and your family through Centering. Having grown up in a large family with a strong nurturing mom and two sisters, her goal is to provide a safe, supportive, and caring environment for all of her patients. Outside of the office, you’ll find Theresa enjoying the outdoors with her three English Bulldogs. As a Chinese Jamaican with a “Food = Love” motto, she enjoys trying new foods and cooking tasty spicy meals for her family and friends.


Amy Willis, MD, has been an ob/gyn for almost 15 years. She has worked with Centering Pregnancy groups across the U.S. and has seen its huge benefits for moms and babies. Centering sets a strong foundation for understanding and embracing all the changes that come with pregnancy and a growing family. Amy believes in empowering women to take charge of their own health, and also believes that a community of women supporting one another is an invaluable component of Centering. Amy grew up in Pennsylvania, but is now happy to call Asheville home. She lives with her husband and two young daughters and spends free time playing with her kids, hiking in the outdoors, traveling to new places, and exploring Asheville.


More Facilitators:

A – G 

    H – M