Steven Powell, MD, Medical Director

Melissa Rivera, MSN, RN, PMHNP-BC

Psychiatric Nurse Practitioner

Melissa is a board-certified Psychiatric-Mental Health Nurse Practitioner, licensed and trained to treat behavioral health concerns across the lifespan. Through her practice she aims to reduce the stigma in mental health and promote healing with culturally competent care. Melissa is bilingual and fluent in Spanish with a particular interest in serving diverse populations.

Melissa graduated with her Master’s in Nursing from The University of Texas at Austin where she completed a scholars program in Integrative Behavioral Health.  Melissa is trained in multiple therapeutic modalities including: psychodynamic psychotherapy, cognitive behavioral therapy, dialectical behavioral therapy, play therapy, and motivational interviewing. Prior to entering into advanced practice nursing, Melissa served as a critical care nurse in the emergency department for various Austin area hospitals where she treated acute medical and psychiatric needs. Before her entry into nursing she received her Masters in Counseling and worked as a Licensed Professional Counselor in the Austin Area. Her experience as a LPC spanned from working with severe mental illness through the local mental health authority doing community based outreach, working with adolescents in the juvenile probation system, as well as working with families and children who were victims of abuse through the Child Advocacy Center in Travis County.

Melissa’s approach to treatment is to work collaboratively with her patients to support their treatment goals with evidenced-based practice, while fostering an empathetic and non-judgmental environment.


  • The University of Texas at Austin, Master of Science, Registered Nursing

  • St. Edward’s University, Master of Arts, Counseling Psychology

  • Baylor University, Bachelor of Arts, Medical Humanities


  • Bilingual – English, Spanish


This place was great for me my life has changed an I feel great now. Thanks Carma!
Joey Castillo
Dr. Powell is amazing, as well as the staff. I would highly recommend this place to anyone.
Kate Penshorn
Excellent mental health professionals in Austin!!! They truly care about their patients by offering first-class services!!
David B. Hutts


Week Days 8:00 - 5:00
Saturday Closed
Sunday Closed

Austin: 512-212-4670

Florida: 754-800-6301

Virginia: 571-450-1600


  • Central Austin Office
    630 West 34th Street Suite 301
    Austin, TX 78705
  • South Congress Office
    4201 S Congress, Ste 203
    Austin, TX 78745

  • Pompano Beach Office
    150 E. Sample Road, Suite 320
    Pompano Beach, FL 33064
  • Annandale Office
    5105P Backlick Rd
    Annandale, VA 22003


CARMAhealth strives to provide lifelong medical and behavioral care and support to individuals struggling with past and present substance use disorder.
Integrated, intuitive and compassionate care through each stage of the addiction treatment and recovery cycle, from detox to long-term management.
Expert care, compassionate support and lasting advocacy as you or your loved one endeavor to regain and manage your medical and behavioral health.

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