Primary Care at TriStar Health Center LLC
290 W Main St, Ste 6, Northborough, MA 01532
Dr. Diana Trister is a healthcare provider specializing in Family Medicine. Diana Trister, DO provides primary care at TriStar Health Center LLC in Northborough, MA. Services include text messaging, email, videochat and cell phone calls. Both telehealth and in-person visits are offered. TriStar Health Center LLC is currently accepting new patients with memberships from $125 per month.
Yes — Diana Trister at TriStar Health Center LLC in Northborough, MA is currently accepting new direct primary care patients.
Membership at TriStar Health Center LLC starts at $125 per month, which covers unlimited primary care visits with Diana Trister — no per-visit copays or insurance billing for covered services.
Yes, Diana Trister offers telehealth (virtual) visits in addition to in-person appointments.
Diana Trister practices Primary Care at TriStar Health Center LLC, delivered through the direct primary care membership model.
This provider's National Provider Identifier (NPI 1609004464) is verified against the U.S. federal NPPES registry maintained by the Centers for Medicare & Medicaid Services (CMS) before being listed.
Our direct primary care guidance draws on the American Academy of Family Physicians (AAFP) and DPC Frontier.
Reviewed by the Connectedly Health Editorial Team · Last updated October 16, 2026. Editorial standards & how we verify providers.