Within Center Team
David Naylor
Founder & CEO
Dr. Eric Miller, M.D.
Medical Director, Within Clinic
Pascha Boyd, PMHNP
Psychiatric Mental Health Nurse Practitioner, Within Clinic
David Burks, LMSW
Psychotherapist
Dr. Meredith Aistrup, ND
Program Director
Patrick Stanger
Director of Marketing
Luke Carver
Director of Admissions
Sarah Slack
Retreat Manager
Heather McCan
Psychedelic Guide
Ashley Buchanan
Psychedelic Guide
BriAnna Hermosillo
Client Care Coordinator
Taylor Arandela
Chef and Integration Coach
Andrew Kaluza
Chief Operations Officer
David Naylor
Founder & CEO
Dr. Eric Miller, M.D.
Medical Director, Within Clinic
Dr Miller is a physician who specializes in Internal Medicine and Obesity Medicine, practicing since 2008. He is originally from New York, currently residing in Austin, TX. Dr Miller is particularly passionate about empowering people to take control of their health with diet and lifestyle choices, as well as by implementing other holistic treatments in order to achieve physical and mental well-being. Dr Miller is an IFBB Pro athlete and in his spare time enjoys exercising and spending time with his pup, Evey.
Pascha Boyd, PMHNP
Psychiatric Mental Health Nurse Practitioner, Within Clinic
David Burks, LMSW
Psychotherapist
David Burks is a therapist and guide in Austin, Texas. David has been a committed student of meditation for over 15 years and has taught Mindfulness-Based Stress Reduction (MBSR) in hospital and University settings. He brings an experiential and somatic approach to therapy, having trained in Hakomi Therapy and also studying Internal Family Systems (IFS) and Accelerated Experiential Dynamic Psychotherapy (AEDP). His style is warm, relational, and present centered, and he has experience with people suffering from trauma, depression, anxiety, addiction, and spiritual crisis, with a special focus on spiritual growth. David is interested in the sacramental use of psychedelics to enhance mental health, spiritual growth, and overall well being.
Dr. Meredith Aistrup, ND
Program Director
Dr. Meredith Aistrup completed her Doctorate of Naturopathic Medicine at Sonoran University of Health Sciences in Tempe Arizona. She received her bachelor of science in Molecular Biology from the University of Kansas. Dr. Aistrup believes that a client should be given the time and space to express their concerns and be deeply listened to and cared for. She utilizes therapies such as nutrition, herbs, supplementation, counseling, lifestyle medicine, environmental medicine, and mind–body medicine to address concerns. The mind, body, and spirit are all taken into consideration for deep healing.
When Dr. Aistrup is away from the office she loves traveling, hiking, camping, mountain biking, snowboarding, practicing yoga, and building community.
Patrick Stanger
Director of Marketing
Patrick Stanger is a dynamic artist and creator with a fascinating and varied life. His unique vision has been showcased throughout his career in the media and advertising world, where he founded a niche ad agency. Beyond his professional endeavors, Patrick has achieved a black belt in Brazilian Jiu-Jitsu, exemplifying his dedication and skill in this martial art. He is also deeply committed to personal growth and recovery, exploring psycho-spiritual practices, psychedelics, integration coaching, exercise, meditation, and community support. Patrick’s passion, resilience, and determination inspire those around him as he continues to forge his own path in life.
Luke Carver
Director of Admissions
Luke Cade Carver is from Denver Colorado. He works for Within doing PR, Marketing, sales and coaching. He has turned the dark times of his life and made those experiences become positive in helping others through their transformation. He believes that each and every moment is beautiful, good or bad. That through each moment something can be learned. Always working on growth and ascension he humbly helps those he meets. He loves yoga, working out, breathwork, sound baths and ecstatically dancing around Austin Texas. He embodies transformation.
Sarah Slack
Retreat Manager
Sarah is a born spiritual healer. Born and raised in Texas and spending the better years of her childhood just north of Austin. She has always had a gift of holding a safe space for others, and offering a listening ear that will leave you feeling seen and heard. Born into a family of pastors in a Protestant church, spirituality has always been a part of her life one way or another. Moving away from the dogma of religion, Sarah looks to her relationship with the divine spirit (God) for guidance, and moves through her life with integrity, authenticity, kindness, and love. She uses her gifts to help others find their way, connect deeper with themselves, move through life with more embodiment, enrich what is present, and inspire them to reach their dreams.
She is the Retreat Manager here at Within and facilitates meditation and yoga classes. Sarah offers a unique approach to ketamine therapy by using the skills she learned through massage therapy and from her own journey of healing through psychedelics. She has been a licensed massage therapist since 2010 and a certified yoga teacher since 2018. She’s been on an avid non-stop healing journey since 2019 by overcoming strong negative habitual patterns, addiction, re-connection to herself and spirit, and difficult life challenges.
She will use her intuition to help direct and anchor you through your ketamine journey. Using drums, sound bowls, essential oils and fans, while also offering energy healing and somatic holds to help you anchor into your reality, dive deeper with yourself in a safe and loving container, and find healing for your mind, body, and spirit. She listens to you deeply, will offer reflective feedback, will softly challenge both your thoughts and perspectives, and most importantly is a strong support for you during this time of healing and radical change.
Heather McCan
Psychedelic Guide
Hi, my name is Heather McCan. I am a somatically trauma-informed guide at Within Center.I have 14yrs experience working with plant medicines, participating in sacred ceremonies as a guardian and working in healing spaces. I have also been a licensed massage therapist since 2011. In 2016 I was liberated from a life-threatening addiction to alcohol in a sacred plant medicine ceremony. It was the beginning of a profound journey on a path of healing, recovery, and transformation. By the grace of God I found my way to the medicines, people, and healthy practices that helped save my life. I am here as a beacon of light and hope; True healing and transformation is possible. My heart’s greatest desire is to utilize all the knowledge I have attained and all that I have overcome to help others find their own inner healer.
I am a student of the divine and have the heart of a theologian. I love reading sacred spiritual texts and exploring the unseen realms. I enjoy snowboarding, hiking, music, dancing, concerts and going to transformative festivals. I have a little doggie named Vega… she is the light of my life!
Ashley Buchanan
Psychedelic Guide
Ashley Buchanan is a yogini, intuitive healer, guide, priestess, mentor and clairvoyant empath. She believes that all souls came to this Earth with their own mission, medicine and magic. She is here to support the release of blockages that are affecting your reality, open channels, and restore your energy to a state of equilibrium. Ashley is passionate about serving others along their journey of self-discovery, shining light on your own divinity to help you remember who you are and what your soul came here to do. To unleash your power, unlock and activate your gifts, and amplify your fullest, most authentic expression. To help bring you into alignment with your soul destiny. Through experiential wisdom, channeled guidance, light language activations and quantum field work, Ashley facilitates healing, harmony and ascension for your soul’s highest and greatest good.
BriAnna Hermosillo
Client Care Coordinator
BriAnna was raised in Texas by her immigrant grandmother who practices indigenous healing modalities and plant medicine known as curanderismo. Having been taught the ways of the ancestors, she decided to further her education in curanderismo back in 2020 at the University of New Mexico, having completed the educational program taught by Professor Don Eliseo Torres. BriAnna continues to be of service to humanity, inspired by Loved ones; her grandmother and uncle Dr.Geraldo Hurtado who was a theologian and medicine man. In her leisure time, BriAnna enjoys dancing, cooking, making art, and curating healing spaces and events for her community. She is very grateful to be a part of the Within Family, helping others on their healing journey and initiation into ceremonial medicine.
Taylor Arandela
Chef and Integration Coach
Meet Taylor Arandela, the talented personal chef at Within. Her approach to cooking is infused with love, and she believes that every meal she prepares should be made with intention. Through coaching sessions and intuition, Taylor takes the time to get to know the clients at the retreat and creates dishes that cater to their specific needs and desires. Working closely with Dr. Meredith, she ensures that every dish is not only delicious but also aligned with principles of health and well-being, our clients own personal dietary plan.
Using only the freshest organic ingredients, Taylor is able to accommodate a wide range of dietary needs, making her a favorite among guests at Within. Her culinary creations have become iconic at the center, with each bite imbued with the warmth of her love for cooking. For a truly memorable dining experience, look no further than Chef Taylor’s exceptional cuisine.
