3 Best Psychiatrists in Tucson, AZ

“Dr. Jennifer Treusch has over 11 years of experience in the psychiatric field. She graduated from the University of Arizona Medical School and completed her residency in Psychiatry at the University of Arizona. She approaches each consultation with an open mind, and she believes in allowing her patients to participate in their treatment planning. Dr. Jennifer Treusch provided comprehensive mental health care as an Outpatient Psychiatrist. Her focus is on treating the whole patient with individualized and compassionate care. She practices at Desert Health Clinic. The clinic has a team of highly trained mental health providers who strive to provide you with the highest quality care.”

“Dr. Mavis J. Donnelly has over 45 years of experience in the field of handling both general and complex psychiatric diseases & disorders. She graduated from the University of Connecticut School of Medicine. She finished her residency at the University Medical Center. Dr. Mavis J. Donnelly delivers high-quality care that can help patients stay healthy forever. She focuses on diagnosing and treating all kinds of psychiatric disorders, especially Attention Deficit Disorder (ADD) and Anxiety Phobic Disorders. Dr. Mavis J. Donnelly treats patients with the utmost respect and compassion and strives to provide sustainable outcomes.”

“2026 Update: Dr. Samantha Frembgen received her medical degree from Des Moines University College of Osteopathic Medicine and has been in practice for more than 20 years. Dr. Samantha Frembgen’s training in Osteopathic Medicine emphasizes the strong connection between mental health and physical well-being, highlighting the importance of the mind-body relationship and the interdependence of all organ systems in supporting the treatment and healing of mental illness. She is passionate about providing evidence-based care for psychiatric issues.”