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 / TX

MARCIA L O'BRIEN, NP

NURSE PRACTITIONER

Graduated: 2016

NPI: 1053853176

Practice Locations (2)

13492 RESEARCH BLVD, SUITE 120

AUSTIN, TX 78750

970 HESTERS CROSSING RD, SUITE 101

ROUND ROCK, TX 786818018

Source: CMS National Downloadable File, September 2026.

MARCIA O'BRIEN, NP | HealthCareAtlasUSA