Lupita Castañeda, MSN, APRN, PMHNP-BC

Experience
Lupita Castañeda is a Board-Certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) with over 20 years of progressive experience in behavioral health nursing. She provides outpatient psychiatric care for adults, with a strong background across substance use detox, residential treatment, and outpatient settings.
She has extensive experience treating co-occurring (dual diagnosis) disorders and has worked with individuals struggling with addiction, including opioid and alcohol use disorders, since 2005. Her clinical work includes medication-assisted treatment (MAT), including Suboxone and extended-release Buprenorphine.
Approach & Expertise
Lupita’s approach is trauma-informed, culturally sensitive, and collaborative. She emphasizes creating a safe, supportive, and nonjudgmental environment where patients feel heard, informed, and empowered to actively participate in their care.
Her clinical focus includes:
- Substance use disorders and recovery support
- Co-occurring mental health conditions
- Medication-assisted treatment (MAT)
- Adult outpatient psychiatric care
She is fluent in Spanish, allowing her to provide culturally responsive care to a broader patient population.
Education & Credentials
- Master of Science in Nursing (MSN)
- Advanced Practice Registered Nurse (APRN)
- Board-Certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC)

