Matthew Swain Duncan, M.D.

Clinical Neurophysiology Psychiatry & Neurology

Psychiatry & Neurology

Matthew Swain Duncan is a Clinical Neurophysiology Psychiatry & Neurology specialist based in Lebanon, NH with over 25 years of clinical experience. Offers virtual telehealth visits.

(603) 650-4725Lebanon, NH
Telehealth Available
NPI Active per CMS — Q2 2026

With over 25 years in psychiatry & neurology, Matthew Swain Duncan, M.D. is a long-established clinical neurophysiology psychiatry & neurology specialist in Lebanon. A Geisel School of Medicine at Dartmouth graduate since 2001, he brings 25+ years of experience. CMS Medicare data shows his patients commonly have depression, anxiety, and mood disorders.

1 of 2 Psychiatry & Neurology providers in NHSee all Psychiatry & Neurology in Lebanon25+ years experienceNPI since 2006

Older · 4814dNPPES updated 2013-03-19 · verify NPI on CMS · Verify license at New Hampshire Board of Medicine

Contact & Location

Practice Location

1 Medical Center Dr Dhmc-Dhpa Psychiatry, Lebanon, NH 03756-1000

Fax: (603) 650-0438
Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Depression, Anxiety Disorders, and Mood Disorders.

Depression
75%

A mood disorder causing persistent sadness and loss of interest in activities

Anxiety Disorders
75%

Excessive worry or fear that interferes with daily life

Mood Disorders
75%

Conditions affecting emotional state, including depression and bipolar disorder

Bipolar Disorder
65%

A condition with extreme mood swings between emotional highs and lows

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 2001

    Geisel School of Medicine at Dartmouth

  2. 25 years in practice

    Experienced

Clinical Neurophysiology is a subspecialty with psychiatric or neurologic expertise in the diagnosis and management of central, peripheral, and autonomic nervous system disorders using combined clinical evaluation and electrophysiologic testing such as electroencephalography (EEG), electromyography (EMG), and nerve conduction studies (NCS).

Taxonomy: 2084N0600X

Education & Training

Geisel School of Medicine at Dartmouth (Class of 2001)

Virtual Clinical Neurophysiology Care With Matthew Swain Duncan

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Matthew Swain Duncan for depression management, anxiety counseling, mood disorder follow-ups — no travel to Lebanon required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Matthew Swain Duncan

Dr. Duncan is listed as active in the NPI registry with telehealth listed in Lebanon, NH. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (603) 650-4725.

Verified across 2 federal data sources

Sourced from CMS NPPES · OIG LEIE. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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