About Us

At Zephyr Behavioral Health & Wellness, we are dedicated to providing compassionate and comprehensive mental health care. Our mission is to support you on your journey to wellness with personalized, accessible, and innovative services.

Zephyr Behavioral Health is a mental health and wellness group. The clinic model is primarily telehealth-based, with a few in-office days a month. Telehealth psychiatry expands care access to remote and underserved areas, and shortens wait times for individuals who are in need of specialty services.

Our partner providers are dual certified in Family and Psychiatric Mental Health Care. They are trained and certified to care for patients across the lifespan.

Zephyr does plan to expand its services to include psychedelic-assisted therapy, migraine treatments, and wellness infusion therapies.

Group of people holding hands

Mission

Our mission is to provide comprehensive and inclusive outpatient behavioral health services, empowering individuals to achieve holistic wellness and thrive in their communities. Through evidence-based treatments, compassionate care, and culturally competent approaches, we strive to support each patient’s unique journey toward mental health and emotional well-being. By fostering a safe, supportive, and respectful environment, we aim to break down barriers to access and ensure that all individuals receive the personalized care and support they deserve. Together, we are committed to promoting healing, resilience, and empowerment for every person we serve.

Vision

Our vision at Zephyr Behavioral Health is to be a leading mental health clinic renowned for unparalleled patient service, sustainable growth, and fostering a positive company culture. We aspire to continually expand our reach while maintaining a steadfast commitment to providing comprehensive and holistic care to our patients. Through innovation, collaboration, and a focus on well-being, we aim to set the standard for excellence in mental health care, creating lasting positive impacts in the lives of our patients, staff, and the communities we serve.

STAFF AND TEAM

Meet Our Dedicated Team

Experienced Professionals Committed to Your Well-Being

Our team at Zephyr Behavioral Health & Wellness is composed of experienced professionals who are passionate about mental health. Each member brings unique expertise and a shared commitment to providing exceptional care. We work collaboratively to create a supportive environment where you can feel understood and empowered on your path to wellness. Whether you’re connecting with us virtually or in-person, you can trust our team to be with you every step of the way.

Annmarie Kropp, DNP, BSN, PMHNP-BC, FNP-C

Director of Clinical Operations/ Co-Owner

Annmarie is a board-certified Psychiatric Nurse Practitioner and Family Nurse Practitioner based in Denver, Colorado. She received her doctorate degree in family nursing practice from The University of Arizona in 2016. After completing her degree, Annmarie worked as a Family Nurse Practitioner in pediatric neurology for over 5 years. Her long-standing interest in psychiatry led her to pursue a postgraduate certificate in psychiatric mental health. She completed her postgraduate certification in 2021 from the University of Cincinnati. Annmarie has experience treating clients with anxiety, depression, PTSD, ADHD, bipolar disorder, borderline personality disorder, perinatal/postpartum, infertility and co-morbid medical issues such as headaches/migraines, POTS, hEDS, and MCAS.

Her goal is to provide patient-centered, evidence-based care. She believes in collaborating with her clients to develop a plan together that they feel comfortable with. Throughout treatment, Annmarie provides education, resources, and alternative options that may facilitate patient growth and wellness. She recently obtained her PMH-C through Postpartum Support International. She will be completing a 1 year supervisory program through NCRP in reproductive psychiatry in order to provide evidence based care for women in the perinatal/postpartum period. She is currently pursuing her ketamine and psychedelic assisted therapy certification through IPI. 

Emily Sisa, MSN, BSN, PMHNP-BC, FNP-C

Director of Clinical Programming/ Co-Owner

Emily graduated from the University of Virginia School of Nursing in 2011, and began her career in the Emergency department in Bermuda. In 2016, she joined Project Hope as a humanitarian aid worker in India, Nepal, Haiti and Cuba. She then moved to Washington, D.C. to pursue her Master’s in Nursing at the George Washington University.

Emily moved to Colorado during the pandemic, where she completed training for advanced practice nursing. As a dual, board certified Family and Psychiatric Mental Health Nurse Practitioner, she applies a holistic, compassionate approach to patient care.

Emily has completed Psychedelic Assisted Therapy training through the International Psychiatry Institute, enabling us to offer MDMA, Ketamine and psilocybin services once these treatments are approved by the FDA for therapeutic use.

John Spear, BSN, RN, MSN, PMHNP-BC

Psychedelic Program Director

John is a board-certified Psychiatric Mental Health Nurse Practitioner with a strong foundation in critical care. He earned his MSN from Frontier Nursing University and brings over a decade of experience as a Registered Nurse, including ten years in the Emergency Department and Intensive Care Unit. During the COVID-19 pandemic, he traveled extensively to provide critical care support. These intense environments deepened his commitment to supporting people through crises and finding effective, individualized treatments. 

His work in mental health care is rooted in a lifelong fascination with philosophy and psychology, which ultimately led him to pursue advanced training in psychiatric nursing. John creates a safe, nonjudgmental space where patients can explore both their challenges and their hopes. Together, he and his patients work to foster resilience and improve their well-being through personalized, collaborative care. John is especially passionate about caring for first responders and others who dedicate their lives to helping others. He also enjoys working with individuals navigating PTSD, ADHD, autism, and treatment-resistant depression and anxiety. 

John is a strong advocate for psychotherapy and its ability to enhance healing alongside traditional medication. He also brings a nuanced understanding of psychedelic experiences and their therapeutic applications, providing compassionate and informed support to individuals wishing to explore these modalities. He believes there is no one-size-fits-all approach and aims to help patients choose the path that feels right for them.  

Kari Envik, MSN, AGACNP

Adult-Gerontology Acute Care Nurse Practitioner

Kari is a board-certified Adult-Geriatric Acute Care Nurse Practitioner with more than 16 years of experience in healthcare. She earned her MSN from the University of Northern Colorado and has worked across a variety of inpatient and outpatient settings, including palliative care, addiction recovery, and psychiatric care. 

Kari takes a whole-person approach to care, combining medication management with non-pharmacologic strategies and attention to all aspects of a patient’s well-being. She believes that honest communication is the foundation for trust and healing and strives to create a space where patients feel seen and supported. 

Mental health is a deeply personal calling for Kari. Her commitment is shaped by both clinical experience and a personal understanding of depression, anxiety, and the impact of addiction on families. She has a special interest in supporting older adults and is passionate about addressing the unique mental health challenges that can come with aging. She brings empathy, curiosity, and a patient-centered mindset to every aspect of her care, creating space for open dialogue and individualized treatment. 

Matthew Pendergrass, MSN, FNP-C

Community Health Nurse Practitioner

Matthew is a licensed Family Nurse Practitioner with a strong foundation in both critical and primary care. He earned his MSN from the University of Colorado and is currently completing his DNP at Colorado Christian University. He is also pursuing certification as a PMHNP through Liberty University.

Matthew’s clinical approach is trauma-informed, collaborative, and patient-centered. He focuses on building trust through culturally responsive care, active listening, and clear communication. He draws on evidence-based strategies that include both medication and non-pharmacologic tools to promote healing and empower patients to take an active role in their care. His goal is to meet each person where they are, with care that is compassionate, practical, and rooted in mutual respect.

He is passionate about advancing health equity and advocates for underserved populations, including low-income patients, immigrants, and individuals experiencing homelessness. Matthew believes quality care should be accessible, equitable, and tailored to each person’s lived experience. At Zephyr, Matthew provides primary care services and wellness exams through our community-based programs, supporting individuals in restoration programs and sobriety houses. 

Amber Teaford, AGACNP

Adult-Gerontology Acute Care Nurse Practitioner

Amber is a board-certified Adult-Gerontology Acute Care Nurse Practitioner with over a decade of experience in emergency and behavioral health settings. She earned her MSN from the University of Northern Colorado in 2020.

Amber’s clinical approach is holistic and person-centered, grounded in the belief that emotional and psychological well-being are integral to physical recovery. With a background in acute care, she understands the importance of treating the whole person by considering their mental and physical health along with the broader context of their daily life. She works closely with each patient to develop realistic, individualized plans that reflect their goals and needs.

She is passionate about supporting adults experiencing anxiety and depression, as well as those with a history of substance use and other mental health concerns. Amber brings a deep sense of purpose to her work and is especially committed to ensuring patients feel heard, respected, and empowered throughout their care journey.

Katie Weimann, MSW, LSW

Katie Weimann is a Licensed Social Worker with over seven years of experience supporting individuals, families, and groups through life’s challenges. She earned her Master’s in Social and Cultural Studies from DePaul University in 2005 and her Master’s in Social Work from Dominican University in 2020. Katie is passionate about empowering clients on their journey toward healing and personal growth.

With a compassionate and client-centered approach, Katie works with individuals facing trauma, grief, chronic illness, life transitions, addiction, and mental health challenges. She tailors her therapy to meet the unique needs of each client, helping them build resilience and navigate difficult emotions with confidence.

Specialties

  • Depression & Anxiety
  • Trauma & PTSD
  • Grief & Loss
  • Geriatric & Medical Social Work
  • Chronic Pain & Chronic Illness
  • Family Systems Therapy

Therapeutic Approaches

  • Acceptance & Commitment Therapy (ACT)
  • Cognitive Behavioral Therapy (CBT)
  • Family Systems Therapy
  • Gestalt Therapy
  • Somatic & Mindfulness-Based Therapies
  • Solution-Focused Brief Therapy

Katie is committed to fostering a safe and supportive space where clients feel heard, valued, and empowered to create meaningful change.

Cat Simons, MSW, LSW

Cat is a Licensed Social Worker with a background in psychology, crisis intervention, public health, and harm reduction. She earned her BA in Psychology from the University of Colorado Boulder and her MSW from the University of Denver, where she specialized in integrative behavioral health. 

Her professional journey includes work as a crisis specialist for the 988 Suicide & Crisis Lifeline, a legislative aide to a state senator focused on trauma-informed policymaking, and a chapter leader for DanceSafe, facilitating harm reduction education across the Rocky Mountain region. In every role, Cat brings a grounded, non-judgmental approach rooted in truly meeting people where they are. 

Cat supports individuals navigating anxiety, depression, trauma, life transitions, and the impacts of systemic oppression. She is especially attuned to clients who have felt unseen or underserved by traditional systems and is committed to building therapeutic relationships grounded in trust, safety, and collaboration.

She is currently completing advanced training in Psychedelic-Assisted Therapy through ATMA-CENA, a global leader in psychedelic healthcare. Her work with holistic and psychedelic therapies is guided by ethical practice, cultural humility, and respect for the communities and traditions from which natural medicines originate. 

Therapeutic Approaches

  • Harm Reduction & Psychedelic Integration
  • Mindfulness-based Practice
  • Solution-Focused Brief Therapy
  • Experiential Therapy