Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Traci Ann Mercier, PA
Physician Assistant in Charlton, MA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679934335
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Registry record
Entity type Individual (Type 1)
Name Traci Ann Mercier
Credential PA
Sex Female
Practice address 10 N Main St, Charlton, MA, 01507
Phone (508) 248-1770
Enumeration date Mar 9, 2016
Last updated in NPPES Mar 9, 2016
Taxonomy & licenses
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Traci Mercier?
Traci Mercier is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Elias Belezos Internal Medicine Physician · Charlton, MA NPI 1205819109 Jeffrey Cohen Family Medicine Physician · Charlton, MA NPI 1962478008 Archana Shah Family Medicine Physician · Charlton, MA NPI 1184685133 Ravindra Acharya Surgery Physician · Charlton, MA NPI 1881608602 Clement Lacoste Surgery Physician · Charlton, MA NPI 1508877630 Brenda Geddis-Comrie Family Medicine Physician · Charlton, MA NPI 1306945092 Stacy Pominville Nurse Practitioner · Charlton, MA NPI 1013187616 Heather Sienel Physician Assistant · Charlton, MA NPI 1528316544
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-09.