Primary Care at Keystone Functional Medicine (Lancaster , PA)
1697 Oregon Pike , , Lancaster, PA 17601
Dr. Mary Regan is a healthcare provider specializing in Family Medicine. Mary Regan, CRNP provides primary care at Keystone Functional Medicine (Lancaster , PA) in Lancaster, PA. Patients can reach the practice through text messaging, email, videochat, cell phone calls. Both telehealth and in-person visits are offered. Keystone Functional Medicine (Lancaster , PA) is currently accepting new patients with memberships from $69 per month.
Yes — Mary Regan at Keystone Functional Medicine (Lancaster , PA) in Lancaster, PA is currently accepting new direct primary care patients.
Membership at Keystone Functional Medicine (Lancaster , PA) starts at $69 per month, which covers unlimited primary care visits with Mary Regan — no per-visit copays or insurance billing for covered services.
Yes, Mary Regan offers telehealth (virtual) visits in addition to in-person appointments.
Mary Regan practices Primary Care at Keystone Functional Medicine (Lancaster , PA), delivered through the direct primary care membership model.
This provider's National Provider Identifier (NPI 1134447998) 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 July 2, 2026. Editorial standards & how we verify providers.