Calistoga Providers Now Welcoming New Patients

Your health is our top priority and our primary care providers are committed to partnering with you on your health and wellness journey. They manage the care of each patient by providing regular exams and screenings, treating chronic and acute illnesses, and coordinating additional care with one of our many specialists if needed. They belong to a large network, where you can access any of the 57 providers who see patients in 18 clinics throughout Napa Valley.

Our primary care providers in Calistoga don’t just treat physical symptoms, they offer whole person care for every patient they serve, one patient at a time.

Adventist Health Physicians Network - Calistoga (formerly the Vermiel Clinic)
913 Washington Street | Calistoga, CA | 94515
To Schedule An Appointment Call 707-942-6233

Our Team

Corey Warner, MD, Internal Medicine

Dr. Corey WarnerDr. Warner is board-certified by the American Board of Internal Medicine. He earned his medical degree from Oregon Health Sciences University and completed his residency in internal medicine at Legacy Emanuel Hospital and Health Center.
Dr. Warner brings more than 17 years of experience and training. He practices in Calistoga and Hidden Valley Lake, where he has helped thousands of patients get and stay healthy. He has a strong passion for helping patients lose weight as a first defense for disease prevention.

Maria Imelda Baguia, ARNP

Dr. Maria BaguiaMaria Imelda Baguia is board-certified by the American Academy of Nurse Practitioners. She received her Master of Science degree in nursing from Adult Health Nurse Practitioner Program South University. Maria brings exceptional experience in primary care, preventive medicine, wellness programs, occupational health conditions, acute care/walk-in care, health education & counseling, collaborative interdisciplinary care and management of chronic health conditions.

Maria maintains a strong care philosophy, "I love what I do. It gives me great joy to know that I can contribute to the well-being of my patients. The mission of Adventist Health as an organization is aligned with my personal goals and values, and I am excited to help bring health, hope and whole-person care to my patients."