Colleen Sullivan, RN/NP

Psychiatric/Mental Health NP

GenderFemaleNPI1770916959Affiliated sites1

Affiliated Health Centers

Colleen Sullivan is affiliated with 1 federally qualified health center location.

ACHS - Littleton II

202 Cottage St, Littleton, NH 03561-4101

Mental Health & Behavioral Health Services

Counseling, therapy, and psychiatric care for depression, anxiety, trauma, and substance use — affordable and accessible.

Individual therapy

Group counseling

Substance use treatment

Psychiatric evaluation

Crisis intervention

Trauma-informed care

Medication management

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Clinician information is sourced from the NPPES National Provider Registry (February 2026) and reflects self-reported practice locations. Individual providers may have joined or left since the last registry update.

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Psychiatric/Mental Health NP

Providing psychiatric/mental health np services at federally qualified health centers with sliding fee scale options.

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Colleen Sullivan, RN/NP

Affiliated Health Centers

Mental Health & Behavioral Health Services

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Psychiatric/Mental Health NP

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