HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / CO

MARY SEAN O'HALLORAN, CP

CLINICAL PSYCHOLOGIST

Graduated: 1989

Offers telehealth

NPI: 1477123511

Practice Locations (1)

1751 HOVER ST, SUITE B4

LONGMONT, CO 805017181

7206350755

Source: CMS National Downloadable File, September 2026.

MARY O'HALLORAN, CP | HealthCareAtlasUSA