Our Team

Meet our Adventist Health Early All-Around Detection (AHEAD) Team

Our Adventist Health Early All-Around Detection (AHEAD) team is united by a passion to inspire health, wholeness and hope. Each are specially trained and are committed to providing high quality, patient centered care in which every patient is treated with great compassion, respect and dignity.

Candace Westgate, DOCandace Westgate, DO
Obstetrics & Gynecology
Medical Director Adventist Health Early All-Around Detection

Dr. Westgate is board certified in obstetrics and gynecology, along with additional certification in Women’s Genomics Counseling from the American College of Obstetrics and Gynecology. She earned her medical degree from A. T. Still University, College of Osteopathic Medicine, and continued on to Georgetown University Hospital in Washington, DC, where she completed her residency in Obstetrics and Gynecology, serving as Chief Resident in her final year. Dr. Westgate is the Medical Director of Women and Infant Services and Adventist Health St. Helena, and the founder of AHEAD. Her scope of practice includes obstetrical care, gynecology care and surgical intervention, including major and minor gynecological procedures, with an emphasis on all procedures using minimally invasive techniques. “Preventive care is important to me. I believe in partnering with and empowering patients on their journey to find health, treating the whole patient and not focusing only on disease.”

Contact Information
Adventist Health Physicians Network
821 S. St. Helena Hwy, Suite 1
St. Helena, CA 94574
Phone: (707) 967-7550

Paolo Andreassi, MD

Dr. Andreassi earned his medical degree from University of L’Aquila School of Medicine in L’Aquila, Italy in 1988, followed by a urology residency at the University of Perugia School of Medicine in Perugia, Italy. He went on to be an attending urologist in the Department of Nephrology and Kidney Transplants at San Salvatore Hospital in L’Aquila, Italy before he and his family immigrated to Santa Rosa, CA in 2004. He then accepted a staff physician position in the department of urology at University of California, Davis.

Dr. Andreassi believes in whole-person care and strives to make a positive impact in the life of his patients. He specializes in minimally invasive prostatic surgery and incontinence procedures for women.

Contact Information
Adventist Health Physicians Network
6 Woodland Rd, Suite 104
St. Helena, CA 94574
Phone: (707) 963-1031

Anne Peled MDAnne Peled, MD

Plastic and Reconstructive Surgery | Breast Surgical Oncology

Dr. Peled is a plastic surgeon practicing aesthetic, reconstructive and breast oncological surgery. Her specialty in breast cancer began at Harvard Medical School, during which time she received the Doris Duke Clinical Research Fellowship to pursue research in breast reconstruction and breast cancer-related lymphedema. After earning her medical degree at Harvard Medical School, Dr. Peled completed her residency in general surgery and plastic surgery at University of California, San Francisco. During her residency she completed a two-year post-doctoral research fellowship focused on breast reconstruction outcomes and novel surgical techniques for managing breast cancer. Following her residency and fellowship, Dr. Peled continued her training at UCSF with a fellowship in breast oncologic surgery and reconstructive microsurgery. This additional training provided her with the unique skills to be able to perform oncological and reconstructive procedures that often make up the surgical treatment for breast cancer. Dr. Peled continues to be actively involved in clinical research.

Contact Information
2100 Webster, Suite 424
San Francisco, CA
Phone: (415) 923-3011

Ethan D. Schram, MDEthan D. Schram, MD

Oncology, Hematology, Internal Medicine

Dr. Schram is board certified in Oncology, Hematology and Internal Medicine. He earned his medical degree from the University of California at Davis School of Medicine, Davis, CA. He completed his residency in Internal Medicine at Oregon Health & Science University and a Fellowship in Hematology/Oncology at Scripps Clinic and Research Foundation, where he served as Chief Fellow. While at Scripps, he was awarded the Nell and Tom Waltz award for leadership in medicine and the Northwestern University Lynn Sage Breast Cancer Achievement Award. In addition to his busy medical practice at the Martin-O’Neil Cancer Center, Dr. Schram is the Chief of Medical Staff at Adventist Health St. Helena.

Contact Information
Martin-O’Neil Cancer Center
10 Woodland Rd.
St. Helena, CA 94574
Phone:(707) 967-5721

Karynne Duncan, MDKarynne Duncan, MD


Dr. Duncan is an accomplished medical professional with a private dermatology practice in St. Helena. Board certified in both Internal Medicine and Dermatology, Dr. Duncan moved to the Napa Valley from Colorado, where she was on faculty at the University of Colorado School Of Medicine in the departments of Internal Medicine and Dermatology. In addition to running her own private practice, she is a clinical instructor at Yale School of Medicine’s department of Dermatology and is a member of the test writing committee for the American Board of Dermatology. Dr. Duncan has published numerous papers and book chapters and in 2014 co-authored a dermatology textbook entitled Dermatology Essentials. Dr. Duncan is passionate about the role of genetic factors in the development of cancer, as she has personal experience in this area. In 2016, she underwent an allogeneic stem cell transplant at UCSF Medical Center for myelodysplastic syndrome, a rare disease in which the bone marrow fails to produce enough healthy blood cells. Dr. Duncan is determined to channel her health issues into hope for others by participating in the Adventist Health Early All-Around Detection program.

Contact Information

1104 Adams Street, Suite 201
St. Helena, CA 94574
Phone:(707) 967-0800

Cheryl Chong, DOCheryl Chong, DO

Family Medicine

Dr. Chong is board certified by the American Osteopathic Board of Family Practice. She brings a passion for lifestyle medicine and preventive care. She completed medical school from Touro University College of Osteopathic Medicine, followed by her residency at Inspira Health Network in Vineland, New Jersey, and an internship at Peconic Bay Medical Center in Riverhead NY. Dr. Chong has participated in a number of research projects including a NIH funded study of Women’s Health Initiative, Cardiovascular Health Study and the Ginkgo Evaluation of Memory Study at UC Davis Medical Center in Sacramento, CA. She has worked as a family physician with the Missionaries of the Poor in Kingston Jamaica where provided medical care for children in orphanages with chronic and debilitating medical conditions such as cerebral palsy, fetal alcohol syndrome, spina bifida and AIDS.

Contact Information
Adventist Health Physicians Network
821 S. St. Helena Hwy, Suite 2
St. Helena, CA 94574
Phone: (707) 967-7551
Fax: (707) 967-7552

Corey Warner, MDCorey Warner, MD

Internal Medicine

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

Contact Information
Adventist Health Clear Lake Medical Office – Hidden Valley Lake
18990 Coyote Valley Rd., Suite 10
Hidden Valley Lake, CA 95467
Phone: (707) 987-8344 ​​

Tegpal Atwal, MDTegpal Atwal, MD


Dr. Atwal is an experienced board-certified gastroenterologist who has been in practice for more than 16 years. He brings exceptional training and experience in Gastroenterology and Hepatology. He completed a fellowship in Gastroenterology at Virginia Commonwealth University in Richmond, VA and a fellowship in Advanced Gastroenterology - Pancreatology at Mayo Clinic in Rochester, Minnesota. He has participated in extensive research including colorectal cancer screening, pancreatic diseases and post liver transplant studies, to name a few. He receives exceptionally high praise from his colleagues and patients.

Dr. Atwal has also enjoyed teaching as Clinical Assistant Professor at St. Louis University School of Medicine and at Elson S. Floyd College of Medicine, WSU Health Sciences in Spokane, Washington and as a member of the core faculty for the Internal Medicine Residency Program at Trios Hospital in Kennewick, Washington.

Contact Information
Adventist Health Physicians Network
6 Woodland Road, Suite 303
St. Helena, CA 94574
Phone: (707) 963-7028 ​​