Gregory Yervant Warner, D.O.

Infectious Disease Internal Medicine

Internal Medicine

(707) 624-7999Vacaville, CA
Telehealth Available
NPI Active per CMS — Q2 2026

Gregory Warner, D.O. has been part of the Vacaville medical community since 2007 in independent practice. He has been in practice for 21+ years. Infectious disease specialists diagnose and treat complex infections including HIV/AIDS, hepatitis, tuberculosis, and more.

1 of 267 Internal Medicine providers in CASee all Internal Medicine in Vacaville21+ years experienceNPI since 2007

Data updated 2013-09-17 on CMS NPPES

Contact & Location

Practice Location

1010 Nut Tree Rd Suite 100b, Vacaville, CA 95687-4172

Fax: (707) 624-7998

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Background & Specialty

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

Internal MedicineInfectious Disease in VacavilleAllopathic & Osteopathic Physicians

Infectious disease specialists diagnose and treat complex infections including HIV/AIDS, hepatitis, tuberculosis, antibiotic-resistant infections (MRSA), post-surgical infections, and travel-related illnesses. They also provide pre-travel vaccination counseling and manage infections in immunocompromised patients.

Taxonomy: 207RI0200X

Virtual Infectious Disease Care With Gregory Warner

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

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

Frequently Asked Questions

Common questions about Gregory Warner

NPI records show Dr. Warner as active with telehealth listed in Vacaville, CA. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (707) 624-7999.

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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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