Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Caitlin Reid Mercer, C-PA

Physician Assistant in Woodbridge, VA · enumerated 2016.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1457705790

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Registry record

Entity type Individual (Type 1)

Name Caitlin Reid Mercer

Credential C-PA

Sex Female

Practice address Woodbridge, VA, 22191

Phone (703) 523-1486

Enumeration date Apr 22, 2016

Last updated in NPPES Apr 22, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License C0006103 (MD) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0110005285 (VA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Caitlin Mercer's NPI record?

Cross-check NPI 1457705790 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1457705790 active?

Yes, as of the latest NPPES snapshot, NPI 1457705790 is active (record last updated 2016-04-22).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-22.