Shannan T. O'Brien, PA-C is a physicianassistant in Mount Vernon. Operator refreshes the health score, market rank, and review feed every night.
Operator computes a Health score every night at 2 am HST. It is the one number that tells you if this shop is winning, losing, or steady. Here is how Shannan T. O'Brien, PA-C broke down on Apr 20, 2026.
Operator ranks every physicianassistant in Mount Vernon every night at 2 am HST using reviews, response rate, and local market share.
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