Sydney Diann Seyfert, PMHNP, Psychiatric Nurse in Missoula
Sydney Seyfert NP is a board certified psychiatric nurse practitioner. Sydney Seyfert, NP considers herself a holistic provider. She believes that psychiatric medications are a tool to achieve mind-body wellness, although certainly not the solution. One must continue in their own self-care by understanding the importance of investing in their mind, body, and spirit. Sydney's utilizes evidenced-based modalities to treat your condition.She earned her Bachelor of Science in Psychology in 2003 from Oregon State University. In 2010 she earned her Masters in Nursing from number one ranked University of Washington.
Sydney has treated a number of psychiatric conditions in individuals of all ages in settings such as psychiatric hospitals, outpatient clinics, the prison system, the veteran's administration, as well as private practice. Sydney is skilled at treating conditions such as schizophrenia, bipolar, anxiety, depression, ADHD, and personality disorders.
Sydney is a Montana native, born and raised in central Montana. She is thrilled after studying and working across the western US, to be back living and practicing in Montana. While not practicing psychiatry, Sydney is an enthusiastic lover of the outdoors. She finds healing through connecting with nature.
Call or Email Sydney Diann Seyfert for a free phone consultation now - (406) 540-3556


  • Years in Practice: 6 Years
  • School: University of Washington
  • Year Graduated: 2010
  • License No. and State: 46667 Montana


  • Avg Cost (per session): $60 - $200
  • Accepts Insurance: Yes
  • Accepted Payment Methods: American Express, Cash, Check, Discover, Health Savings Account, Mastercard, Visa

Accepted Insurance Plans
  • Aetna
  • Allegiance
  • Blue Cross
  • Blue Shield
  • CHIP | Children's Program
  • Cigna
  • Medicaid
  • Medicare
  • Optum
  • PacificSource
  • Regence
Verify your health insurance coverage when you arrange your first visit.

Additional Credentials

  • Certificate: ANCC


  • Trauma and PTSD
  • ADHD
  • Depression


  • Addiction
  • Alcohol Abuse
  • Anger Management
  • Anxiety
  • Asperger's Syndrome
  • Autism
  • Behavioral Issues
  • Bipolar Disorder
  • Borderline Personality
  • Child or Adolescent
  • Chronic Pain
  • Developmental Disorders
  • Domestic Violence
  • Eating Disorders
  • Emotional Disturbance
  • Grief
  • Intellectual Disability
  • Learning Disabilities
  • Medication Management
  • Obesity
  • Obsessive-Compulsive (OCD)
  • Oppositional Defiance
  • Self Esteem
  • Self-Harming
  • Sexual Abuse
  • Substance Abuse
  • Suicidal Ideation
  • Traumatic Brain Injury
  • Women's Issues

Mental Health

  • Dissociative Disorders
  • Mood Disorders
  • Personality Disorders
  • Psychosis
  • Thinking Disorders

Client Focus


  • Toddlers / Preschoolers (0 to 6)
  • Children (6 to 10)
  • Preteens / Tweens (11 to 13)
  • Adolescents / Teenagers (14 to 19)
  • Adults
  • Elders (65+)
Last Modified: 14 Jul 2017
Sydney Diann Seyfert, PMHNP, Psychiatric Nurse in Missoula

Sydney Diann Seyfert

Psychiatric Nurse, PMHNP