Our Team

Learn more about our paid staff and
volunteer board of directors who have a passion for serving our patients!



Our Staff

Theresa Olfson, MD

Medical Director

Theresa Olfson, MD has been an Emergency Medicine Physician at Texas Health Allen since it’s opening in 2000. After seeing thousands of patients in the Allen/McKinney area, she wanted to serve and give back to the community. She first began volunteering at Hope Clinic through her involvement in The Parks Church. She is excited to begin 2023 in a new role as Medical Director of the Hope Clinic. Theresa and James met in medical school in Chicago and have been married 29 years. They are empty nesters as their older daughter, Erica, just graduated from Vanderbilt with a Masters in Biomedical Sciences and Rachel, is a sophomore at University of Oklahoma. She is a happy dog mom to Eli!

Vicki Northcutt

Executive Director - Development

Over the course of her career, Vicki has considered herself blessed to work in both the nonprofit and corporate worlds, honing her skills in marketing, events, writing and fundraising. She joined the Hope Clinic team in March of 2021 and is humbled to use her skills to help this organization truly minister to the physical and spiritual needs of our neighbors. Vicki graduated from Texas Tech University with a bachelor’s in Public Relations and minor in English. She is the author of Plano: An Illustrated Chronicle, a member of Cottonwood Creek Church, and volunteer with Family Promise of Collin County. But the role and title she loves most is wife of 35 years to Brad and mother (mother-in-law) to daughter Kelsey (and husband Carlos) and son Garrett (and wife Christa).

Andrea Naff

Executive Director - Operations

Andrea graduated from Texas Christian University with a degree in speech-language pathology then with her masters from Radford University in Virginia. After just a handful of years practicing as a medical speech pathologist, the Lord called her to raise her rapidly growing family while homeschooling them for over a decade. Toward the end of that season, the Lord gave both Andrea, and her husband, Jason, an overwhelming burden to surrender to the call to vocational ministry (Jason) and the vision behind Hope Clinic (Andrea). Since joining the Hope Clinic team in December of 2019, it has been her desire to walk alongside the family of Hope Clinic as well as the City of McKinney to serve, strengthen and honor all people for the common good of the Kingdom of God. Andrea and her husband live in McKinney and have the honor of raising their six daughters.

Jenny Konvicka

Director of Patient Services

Jenny began as a volunteer with Hope Clinic on day one and was invited to join the staff as Patient Care Coordinator in February 2019. She studied Spanish and Music at Ouachita Baptist University and has served as the Student Ministry Coordinator for the Parks Church. There is no better place to combine her passion for serving others, sharing the love of Jesus, and employing her Spanish language skills than serving the patients of Hope Clinic. Her greatest joy has been experiencing Jesus in each patient that walks through the door.

Sarah Ortiz, MSN, APRN, FNP-C

Nurse Practitioner

Sarah Ortiz is a Family Nurse Practitioner who graduated with her Master of Science in Nursing degree from SUNY Upstate Medical University in Syracuse, NY in 2011. Prior to this, she completed her Bachelor of Science in Nursing degree at Marquette University in Milwaukee, WI in 2007. Sarah now considers Texas home as she’s lived here for nearly 10 years. Her career has allowed for the opportunity to work in several different roles, but the position she’s enjoyed the most is working as a Nurse Practitioner in an underserved area; the same community in which she was also raised by a single mom. Sarah and her husband, along with their daughter and son, attend The Trails Church in Prosper. In her spare time, she enjoys spending time with her family and traveling. Since joining the staff in April of 2022, she’s been so excited to share the love of Christ with her patients while helping them to live healthier lives.

Julee Simonsen

Volunteer Coordinator

Julee is a graduate of Liberty University with a degree in Human Services & Counseling. She has always had a passion for helping those in need, physically, emotionally, and spiritually. As an active volunteer at Hope Clinic for 3 years as a Patient Advocate, her life has been changed for the better through her interactions with the patients with whom she has been able to pray with and share Jesus. She spent 20 years as a nomadic military spouse while her husband served in the Air Force and she honed her skills at volunteering in many avenues. She is now excited to be the newest member of the Hope Clinic staff as the Volunteer Coordinator. She lives in McKinney with her husband Erik and their (almost) fully grown children.

Tiffany Edwards

Medical Care Coordinator

Tiffany is a graduate from Southeastern Louisiana University , with a bachelor’s degree in health education and promotion. She has one daughter , Eden Giselle, and a golden doodle named Jagger. When she read about Hope Clinic, she knew this was a place where her passion would ignite! She believes serving others is what God expects us to do. Service is rewarding in many ways, and she finds joy in helping the community fulfill its needs in health and wellness.

Denise McMillan

Credentialing Coordinator

Being raised by a single mom instilled a passion in Denise to help those fighting to rise out of poverty, and advocate for those who can’t advocate for themselves. After completing her internship at Letot Center in Dallas, Denise pursued a career in Management and HR, earning partnership at her firm. Operating alongside a diverse employee culture, she witnessed firsthand the struggle low income individuals without health insurance undergo. After 30 years in the corporate world, Denise returned to her original passion as a CASA guardian ad litem, then to the Hope Clinic Planning Team, volunteering as VC before coming on staff part time. Her desire at Hope is for families to receive holistic healthcare with loving compassion, while never being forced to choose between food, shelter or their health. Denise is married to Bill McMillan. They share four children and seven huggable grandchildren.

Alondra Lopez

Medical Assistant

Anita Soria

Office Manager

Anita served as an overseas missionary in Ecuador for over 30 years in the areas of counseling, women’s ministries, children’s education, accounting, and office administration. She has a degree in Psychology, which has equipped her with the ability to better understand the needs of others, as well as the skills required to formulate a solution.
She feels that Hope Clinic is the perfect place to reach out and bring healing to those with physical, emotional, and spiritual needs, as well as sharing the love of Jesus.
Anita enjoys leading couple’s small groups alongside her husband Daniel, as well as leading women’s Bible studies, and spending family time with her three children and 6 grandkids.

Sandra Gomez


Sandra has a bachelor’s degree in psychology. She worked in HR and as a coordinator of training and personal development programs for several years. This experience gave her the opportunity to discover the possibilities that each person has to grow and to direct their growth for the well-being of others. Sandra and her husband moved to the United States, where they started their family. It was at this point when God showed them all His love and mercy and gave them the blessing of two children and the opportunity for her to be dedicated to raising them. As she was praying to God for guidance and a way of serving Him and showing others His love and compassion, one day, she found Hope Clinic and started working as a volunteer in 2021. She finds joy and meaning every day that she has been with The Hope community, She often tells others that “how could I not to love a work, an environment, and people who stand for love.” Sandra enjoys traveling, trying food from different countries, and every moment with her husband, her two children and their lab, Casper.

April Music

Licensed Professional Counselor and Licensed Chemical Dependency Counselor

April completed her undergraduate work in psychology at Austin College in Sherman and her graduate work in counseling at Texas A & M University in Commerce – over 25 years apart! In between, she and her husband Jeff raised three children, now ages 24, 23 and 13. When her older children went off to college, so did she. She completed her masters degree and then became a Licensed Professional Counselor (LPC) and a Licensed Chemical Dependency Counselor (LCDC). During her time as a student, she learned about Hope Clinic. Desiring to gain experience as a therapist on a multi-disciplinary treatment team, April joined Hope in January of 2019. She affectionately refers to Hope as “The Little Clinic that Could.” She has provided counseling services in the past at The Samaritan Inn, Austin College and the 741741 Crisis TextLine, and she currently has a private counseling practice in McKinney. She enjoys spending time with her growing family, reading, traveling and coming home to her little red cavapoo, River.

Caitlin Twyman


Caitlin graduated from Oral Roberts University with a degree in Pastoral Care. After a year serving with missionaries in the red light districts of Belgium, she was inspired to attend the University of Tulsa School of Law, with plans to use her degree to serve those without a voice. In law school, she fell in love with immigration law and the immigrant community and began practicing as an immigration attorney. It was in this world that she began to discover the difficulties faced by the uninsured. It is her desire that every Hope Clinic patient not only receives the highest level of care, but feels welcomed, respected, and loved—for we love because He first loved us. Caitlin and her husband, Dr. Steve, are currently serving the Lord in Cambodia and have daughters, Audie and Lucy, and son, Charlie, here on earth and a son, Benson that lives in heaven.

Our Board

Kyle Redel, President of the Board

The Parks Church

“At Hope Clinic all people are treated with dignity, care, and respect as image bearers of our God. Hope Clinic tangibly demonstrates the love of Jesus to the uninsured in McKinney. I believe in the mission of Hope because at the heart of it is the mission of Christ.”

Teresa Craighead, Vice President of the Board

Retired, Community Volunteer

“From the moment I became aware of Hope Clinic’s mission to reach uninsured patients in McKinney and provide them with a sound medical home, I became a fervent supporter. The staff at Hope is caring, dedicated, and talented. The Clinic’s mission to treat the whole patient, including their soul and spirit, embodies Jesus’ message to care for the needy. Serving on the board is a privilege, and gives me the opportunity to further support Hope’s mission and future.”

Melissa Willmarth, Treasurer of the Board


“My passion is sharing the love of Christ by helping bring people together to meet the needs of our neighbors for the glory of God. Over the past 10 years, I have been actively involved with several non-profit organizations with a mission to help the underserved stabilize their lives and build their resources in an environment of dignity and respect. In all, my desire is that Hope Clinic would be a place bringing people together to meet medical needs, build community, and share the good news of Christ.”

Joy Steed, Secretary of the Board

Community Volunteer

“I have had the privilege of volunteering as a patient advocate at Hope for the last 3.5 years and time and time again have been blessed by the opportunity to sit, pray with and get to know the patients that walk through the doors of the clinic. It is a privilege to serve and to share the love and hope found in Jesus with the patients that are served by the clinic.”

Stephen Twyman, MD, MPH

International Medical Missions

“We have a lot of need in our community, and Hope Clinic is an opportunity to meet that need. It’s been rewarding and fun to get to engage with our community, to try to partner and work together to meet the health and spiritual needs of our neighbors. For medical professionals who are looking to remember their original goal of helping people and making a difference, Hope Clinic is a perfect opportunity. It is an outlet for one-on-one patient relationships that we providers sometimes don’t get as much as we want.

Hope Clinic is unique. Our patients feel at home. We’ve had multiple patients come up to the clinic just to hang out with us and I have never heard of that in another clinical context. That is the best thing that we have going for us– God has graciously empowered us to really connect well with our patients and to establish a place where they feel comfortable, welcomed and loved. If you are someone who knows that you would like to use your medical skills in some way to advance the kingdom of God, then you will absolutely have opportunities to do that here. If you are not a believer, but you know that there is more to what you do and the skills that you have than just making money, Hope Clinic is definitely a place for you.”

Nick Benavidez

Retired, Kroger Company VP

“At the Hope Clinic, I have the privilege of serving as a Patient Advocate and Interpreter and was recently added to the board. Serving at the clinic has been a true blessing for me. Working with the underserved and uninsured remind me of the mission Jesus has given us. Our objective at the clinic is to not only help our patients with their medical needs, but more importantly to bring them hope in the name of Jesus Christ.”

Rachel Darling

Digital Marketing, Branding, Public Relations

Julia Wiener

JW Strategies

“When my husband and I learned about the Hope Clinic, we looked at each other in surprise and awe because Hope Clinic’s mission was exactly the kind of ministry that we prayed to be a part of. We wanted to support a local organization that provided hope and healing to underserved communities. We did not know how much we would come to love the founders’ hearts for Jesus and how the example of Jesus’ love is carried out day by day at the Hope Clinic. The mission to treat the whole patient (spiritually and physically) and become their medical home gives me hope for a brighter, healthier future for our neighbors. I am honored to be a part of the Hope Clinic’s mission.”

Lacie Reitmeyer, MPH, RN

Volunteer Nurse

“I am honored to have the chance to volunteer as a nurse at Hope Clinic. I love that Hope Clinic treats the whole patient by working to heal the body while also sharing the grace of Christ. My passion has been healthcare, but the clinic cultivates a passion for people. I get thanked a lot for volunteering, but the secret is…I love it. I block out my schedule and look forward to each shift. Volunteering at the clinic fills my soul and reminds me that every human is an image bearer of God. This is the best way I can show the love of Christ. Our patients are real people. They are moms just like me; they are diabetics like my dad; all who need the same education, care and supplies.”