To find a provider, search by Atrius Health practice site, your zip code, specialty, or provider’s last name. You can further refine your results by gender, location, or language spoken. If you cannot find a primary care provider (PCP) in adult internal medicine, pediatrics, or family medicine that meets your needs at your desired location, please call our Patient Registration Department at 1-800-249-1767 or 978-244-7810.