Our Providers

Meet Our Team

Behind every care plan is a team of dedicated, board-certified providers who genuinely care about your wellbeing. We're here to listen, support, and guide you — every step of the way.

Angela Peters, DNP(c), PMHNP-C
DNP(c)PMHNP-C

Angela Peters, DNP(c), PMHNP-C

Founder & Psychiatric Nurse Practitioner

Angela founded Northern Lights Psychiatry with a vision of accessible, compassionate psychiatric care for New Hampshire communities. As a board-certified psychiatric mental health nurse practitioner, she specializes in medication management, depression, holistic and integrative care, and women's mental health — including maternal mental health. Angela takes a trauma-informed, collaborative approach — meeting each patient where they are and building a care plan that truly fits their life. She has been featured in America's Best in Medicine 2026 and is listed as a featured provider on WebMD, reflecting her commitment to providing high-quality, evidence-based patient care.

Areas of Focus

Medication ManagementDepressionSupplements & Holistic CareWomen's Mental HealthMaternal Mental HealthSpravatoKetamine TherapyNeuroStar TMS
Alexandra Markell, MSN, PMHNP-BC
MSNPMHNP-BC

Alexandra Markell, MSN, PMHNP-BC

Psychiatric Nurse Practitioner

Alexandra is a board-certified psychiatric mental health nurse practitioner who brings a compassionate, evidence-based approach to every patient interaction. She specializes in the evaluation and management of anxiety, depression, OCD, PTSD, and mood disorders — working collaboratively with patients to develop personalized treatment plans that support lasting mental wellness.

Areas of Focus

Medication ManagementAnxietyDepressionOCDPTSDMood Disorders
Natalie Clark, MA, LCMHC, CCTP-II, NATC
MALCMHCCCTP-IINATC

Natalie Clark, MA, LCMHC, CCTP-II, NATC

Licensed Clinical Mental Health Counselor

Natalie brings extensive clinical experience and a deep commitment to trauma-informed, affirming care. She specializes in treating depression, anxiety, PTSD, complex trauma, gender dysphoria, and substance use disorders — drawing on a range of evidence-based modalities to meet each patient where they are. Natalie creates a safe, nonjudgmental space where patients feel truly seen and supported as they work toward healing and growth.

Areas of Focus

Depression & AnxietyPTSD & Complex TraumaGender DysphoriaSubstance Use Disorders
Kat Treebrook, MA, MLADC, R-DMT
MAMLADCR-DMT

Kat Treebrook, MA, MLADC, R-DMT

Licensed Mental Health Counselor & Dance/Movement Therapist

Kat brings a unique blend of clinical expertise and somatic awareness to her work with patients. As a licensed alcohol and drug counselor and registered dance/movement therapist, she takes a holistic, body-centered approach to healing — helping patients reconnect with themselves and build lasting coping skills. Kat specializes in substance use, ADHD, chronic stress, and anxiety, working primarily with adults and older adults. She creates a warm and nonjudgmental space where patients feel empowered to grow.

Areas of Focus

Substance UseADHDChronic StressAnxietyAdults & Older Adults

What Guides Us

Our Shared Values

Compassionate Care

We lead with empathy — every patient deserves to feel heard, respected, and supported throughout their journey.

Clinical Excellence

Our providers stay current with the latest evidence-based practices to deliver the highest standard of psychiatric care.

Personalized Approach

No two patients are alike. We build individualized care plans that reflect your unique history, goals, and values.

Ready to Begin?

We'd love to be part of your journey

New patients are welcome. Reach out today to schedule your first appointment — in person in Bedford, NH or via telehealth anywhere in New Hampshire.