Our Staff

Larisa Biznichuk, MS, PMHNP-BC

Director of Secondary Eating Recovery Services

Larisa Biznichuk, MS, PMHNP-BC, serves as the Director of Secondary Eating Recovery Services for Sierra Tucson. She follows up with patients suffering from depression, anxiety, and substance use disorder, who also require secondary treatment for disordered eating. Her nursing career started as a nurse anesthetist in a maternity hospital in Uzbekistan. After relocating to the United States with her family, she decided to continue her nursing career.

Larisa received both her Bachelor of Science in Nursing and Master of Science in Nursing with specialization in psychiatric mental health from the University of Arizona. She graduated with honors – magna cum laude – and practiced as a registered nurse in a psychiatric mental health community crisis facility. After becoming board certified as a psychiatric mental health nurse practitioner, she continued working at a community mental health clinic. Larisa’s experience includes working with patients suffering from various psychiatric/mental health problems (i.e., trauma, mood, eating disorders, anxiety, and mood disorders) and co-occurring disorders such as addiction. She specializes in providing care for women with perinatal and postpartum mental health disorders.

Larisa is passionate about helping individuals with psychiatric conditions, addictive disorders, and co-occurring eating disorders find the help they need. She strives to improve their health and wellbeing so they may continue their new, healthy lifestyle following treatment at Sierra Tucson.

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The time spent at Sierra Tucson was the true beginning of my journey. Not only did I overcome my addictions, but I began to focus on the root causes that created my compulsions. I understand myself so much better now.

– Anonymous Client
We Work With
  • Aetna
  • Beacon Health Options
  • Cigna
  • + Many More
Marks of Quality Care
These accreditations are an official recognition of our dedication to providing treatment that exceeds the standards and best practices of quality care.
  • Equine Assisted Growth and Learning Association (EAGALA)
  • GeneSight
  • National Association of Addiction Treatment Providers (NAATP)
  • National Association of Psychiatric Health Systems (NAPHS)
  • Neurostar