Expert Care

Austin Ketamine Specialists was founded on the premise that every person should have the absolute best chance to live their lives unburdened by crippling mental health disorders or chronic pain. It is our objective to help relieve the suffering of each of our patients, and to help them achieve their full potential to lead fulfilling and enriching lives. Our team will work closely with your established physician or mental healthcare provider to obtain the results you are hoping for, and forge a longterm care plan to keep your symptoms at bay. We prioritize patient safety and comfort, and feel privileged that each of our patients has chosen us for help in their time of need.







Chronic Pain

Chronic Pain

Paul Foster, DO, FACEP

Medical Director/Founder Austin Ketamine Specialists and Houston Ketamine Specialists

Having watched many loved ones and close friends suffer from the incapacitating effects of depression and anxiety, Dr. Foster felt compelled to act. He established Austin Ketamine Specialists with the intention of making safe and effective ketamine therapy accessible to patients facing a wide variety of conditions. Having succeeded in providing the community of Austin, TX with the caring and compassionate relief it needs, Dr. Foster has chosen to expand his practice to the community of Houston, TX.

After serving his country as a member of the US Air Force, Dr. Foster attended Harvard for his undergraduate degree. Recognizing that the modern approach to medicine might be improved upon, he attended Touro University Osteopathic Medicine in California where he earned his Doctor of Osteopathic Medicine. This program allowed him to focus on cultivating an integrative and holistic approach to patient care. Dr. Foster then went on to complete his residency in Emergency Medicine at Mount Sinai Beth Israel in New York City.

Although he was born and raised in Montana, Dr. Foster has called Texas home since 2011. He is a board-certified Emergency Medicine Physician and has worked at emergency rooms throughout the state of Texas. This experience has allowed him to meet and work with individuals from all walks of life, helping him to develop the compassionate and judgment-free approach to care that he has fostered at both clinics. Today, his passion for helping his patients achieve the most fulfilling and wholesome life they possibly can is what propels him and his practice. He truly believes that everyone deserves the chance to live a life unburdened by mental health disorders and chronic pain. Dr. Foster believes that healing is possible, and he is honored by the opportunity to help heal his community.

Sherri Scott-Hunter, RN, APN, FNP-C

Nurse Practitioner

Sherri brings a wealth of experience to Austin Ketamine Specialists. She has been a Board Certified Family Nurse Practitioner for 23 years. For the past 5 years she has dedicated herself to treating patients in Ketamine Infusion clinics in Austin. Sherri received her Master’s of Science in Nursing degree from California State University Long Beach in 1998. Working as a Family Nurse Practitioner, she routinely managed the mental health care and treated patients of all ages with depression and anxiety. She also has experience working in a Psychiatric Emergency Department caring for patients with addiction and crisis. After moving to Austin in 2014, she has used her clinical experience and caring nature to treat over 2000 patients with ketamine infusions.

Sherri is dedicated to treating those with mental health and mood disorders. When not at AKS, she can be found at the VA performing psychiatric evaluations for the wonderful veterans of our armed forces.

In her free time, Sherri keeps active with travel, distance running (she has completed over a dozen half marathons), and yoga. She is currently working towards completing her yoga teaching certification. She believes strongly in the AKS mission, and is passionate about using her unique skill set to make a lasting difference in our patients’ lives. She sees her work as a privilege, and treats each and every patient with compassion and care.

Brittany Thibault

Nurse Practitioner

Brittany is a nationally board-certified Family Practice Nurse Practitioner (FNP) and certified Transformational Recovery and Integration coach through BeingTrueToYou. Originally from San Antonio Tx, Brittany moved to Austin to complete her BSN at UT. She then worked a little over 4+ years in open-heart surgery at Baylor Scott and White and later earned her FNP from Texas State University. While working as a primary care provider in Downtown Austin, Brittany found her passion for mental health and three years ago started her career helping clients heal using Ketamine infusion therapy. On her free time Brittany enjoys reading, being outdoors, doing anything crafty or DIY and hanging out with her Shih Tzu, Cooper.

AKS works collaboratively with the following outstanding local
mental health providers

Contact Information

Phone: 212-675-7605



Addresses: 501 Genard St, Austin, TX 78751

3811 Bee Cave Road, Suite 204, West Lake Hills, TX 78746

Lisa Thaler, LCSW


Lisa Thaler, LCSW moved to Austin in October, 2019 after having maintained a private practice in New York City for the past 29 years. She received her BA from Amherst College and her MSW from New York University. She completed her psychoanalytic training at The Women’s Therapy Centre Institute, which is specifically known for its attention to feminism, gender and social justice, as well as contemporary psychoanalytic thinking.

She has dedicated the majority of her career to the treatment of eating disorders and has worked collaboratively with psychiatrists, nutritionists and MDs, when clinically indicated. She also has taught and supervised other clinicians interested in learning that specialized treatment.

During the second half of her career, Lisa also has treated couples and individuals with a host of other symptoms; PTSD, depression, communication problems, sexual dysfunction, anxiety disorders, substance abuse, infidelity and adult ADHD. She also has had experience working with those folx for whom gender is non-binary. She has studied with esteemed couples and sex therapist Esther Perel since 2014.

She became interested in the use of therapeutic Ketamine to treat mental health disorders and began working collaboratively with Dr. Glen Brooks at the NY Ketamine Center in 2014. She is excited to be continuing that important collaborative work with Dr. Paul Foster at Austin Ketamine Specialists.

Contact Information

Phone: 512-586-0282 (answering service for voicemail only


Brett Brightwell, MA

Licensed Marriage and Family Therapist

I am a licensed marriage and family therapist and have worked with clients for close to a decade, through private practice. I work with individuals, couples, and groups. My experience includes: couples with children with special needs, couples working through issues involving infidelity or infertility, couples requiring help with communication, physical and emotional intimacy, pre-marital counseling, divorce, and any other issues that might arise in the midst of a relationship/partnership. I also work with individuals dealing with issues related to anxiety and/or depression, life transitions (“lifequakes”), postpartum mood disorders, job interview skills and communication, issues related to the work environment, sports performance, and much more. I have completed advanced training in Gottman Couples Therapy, Certification as an anxiety specialist, and Certification as a tele/video-mental health provider. I have also worked with individual clients receiving Ketamine Infusion treatments.

I want my clients to know that I believe that therapy involves a collaboration between the client/s and the therapist. If a client is not part of the decisions, the ideas, the relationship, and the motivation, achieving the desired change is much more difficult. I understand that being in a long term relationship of any kind (partnership, friendship, family relationship) can be difficult and I believe that everyone needs help navigating the obstacles that we are bound to encounter within relationships and life. I love being a part of that process. My role as a therapist is to collaborate with, empathize with, support, understand, and encourage my clients. I do this through face to face therapy as well as through distance therapy.

Zackery A. Tedder, M.A., LPA

Licensed Psychological Associate, Independent Practice

Mr. Tedder has resided in the greater Central Texas area for the past 16 years. A veteran of the US Navy, Mr. Tedder was previously in the IT community before diving into psychology. A graduate of Texas State University with a Bachelor’s and Master’s Degree in Psychology, Mr. Tedder has been practicing since 2012 in the areas of IQ and Academic Achievement, Personality Testing, and various other psychological assessments related to mood disorders and trauma disorders, while also providing therapeutic services to patients in the Austin area. Mr. Tedder is also working to complete his doctoral work in Clinical Forensic Psychology, and hopes to be done within the next few years.

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