Meet the Team

Dr. Thomas Walden has been practicing psychiatry since 1992. He earned his medical degree from the University of Mississippi School of Medicine in 1988 and completed his psychiatry residency at East Carolina School of Medicine in Greenville, NC, in 1992. With over 33 years of experience in both inpatient and outpatient settings, Dr. Walden is dedicated to providing effective treatment at the lowest possible cost to his patients.

Dr. Walden's personal time is spent playing and rebuilding guitars and enjoying time with his family.

Dr. Philip Brown earned his PhD in counseling psychology from the University of Oklahoma in December 1997. He completed his master’s degree at the University of Kansas and his bachelor’s degree at Black Hills State College. With experience in a variety of clinical settings including outpatient clinics, inpatient wards, outdoor therapeutic programs, and crisis centers, Dr. Brown brings a well-rounded approach to patient care. He currently sees patients at Mountain Home Psychiatric Medicine and PsychHikes in Harrison, Arkansas.

An avid hiker, Dr. Brown has explored trails across the country. He maintains sections of the Ozark Highlands Trail, serves on committees for the OHT, and leads group hikes. He lives in Harrison, Arkansas, with his wife.

Amy has been practicing nursing since 2014, with experience in family medicine, neurology, pain management, and mental health. She has worked closely with Dr. Walden and Dr. Brown since 2020 as the clinic’s nurse. In 2023, she earned her Psychiatric Mental Health Nurse Practitioner degree from Cox College and has obtained her PMHNP-BC accreditation, allowing her to practice in the state of Arkansas.

With a shortage of mental health providers in the area, Amy is committed to working alongside the clinic’s providers to deliver accessible and affordable mental health care to the community. She is married and has a blended family of six children and two grandchildren. In her free time, she enjoys spending time with family, gardening, crafting, hiking, and exploring waterfalls across the Ozarks with her husband.

Audrey graduated from Hendrix College in Conway in 2010 and went on to nursing school at UAMS in Little Rock. She graduated with her RN degree in 2015. Audrey has experience working in oncology, endoscopy and pain management clinics. She joined our clinic in July 2022 while embarking on her training to become an APRN.  She achieved her goal in May 2025, and is currently in the credentialing process. We expect she will be available for new patients in late Fall of this year.

Outside of work, Audrey's life centers around her husband, children, and extended family. They enjoy going to the lakes, hiking, and weekend road trips to fun destinations.

Annette has been involved to various degrees since the clinic opened in 2009. Currently, she is full-time and serves as the Office Manager. Outside of the office, she spends her time with family and working around her home.

Ashlee joined the clinic in 2025 as the receptionist and scheduler. She is a graduate of Mountain Home High School and ASUMH. Ashlee has several years worth of experience in customer service and in medical clinic front desk service. She is a welcome addition to our staff. 

Ashlee is married to Benjamin Grimsdale. In their spare time, they enjoy watching movies, spending time with family, and rescuing cats. If you spot a vehicle stopped in the middle of the road, it's likely Ben and Ashlee rescuing a cat or helping a turtle get across the road.