Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Emily C O'Brien, OD
Optometrist in Saint Louis, MO · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1487214961
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Registry record
Entity type Individual (Type 1)
Name Emily C O'Brien
Credential OD
Sex Female
Practice address 401 N Euclid Ave, Saint Louis, MO, 63108
Phone (314) 367-1848
Enumeration date Jun 18, 2019
Last updated in NPPES Nov 24, 2021
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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 NPI 1487214961 active?
Yes, as of the latest NPPES snapshot, NPI 1487214961 is active (record last updated 2021-11-24).
How do I verify Emily O'Brien's NPI record?
Cross-check NPI 1487214961 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-24.