John T Armstrong, MD

Healthcare Provider

Telehealth Available
NPI Active per CMS — Q2 2026

John Armstrong, MD has been part of the Napa medical community since 2006 in group practice. A Texas Tech University Health Science Center School of Medicine graduate since 1976, he brings 50+ years of experience.

1 of 39 specialty providers in CA50+ years experienceNPI since 2006

Data updated 2007-07-08 on CMS NPPES

Contact & Location

Practice Location

3434 Villa Ln Suite 360, Napa, CA 94558

Fax: (707) 257-4319

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Background & Specialty

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

Education & Training

Texas Tech University Health Science Center School of Medicine (Class of 1976)

Virtual Healthcare Care With John Armstrong

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

Schedule a virtual visit with John Armstrong for follow-ups, medication reviews, and ongoing care — no travel to Napa required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about John Armstrong

NPI records show Dr. Armstrong as active with telehealth listed in Napa, CA. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (707) 257-4317.

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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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