NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Megan O'Neil, M.S., CCC-SLP

Speech-Language Pathologist in Washington, DC · enumerated 2011.

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

National Provider Identifier

1255619532

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Megan O'Neil
Credential M.S., CCC-SLP
Sex Female
Practice address 1200 1st St Ne Fl 9, Washington, DC, 20002
Enumeration date Aug 3, 2011
Last updated in NPPES Apr 23, 2014

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 06708 (MD) Secondary
235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License SLP000461 (DC) 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 Megan O'Neil's NPI record?
Cross-check NPI 1255619532 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1255619532 active?
Yes, as of the latest NPPES snapshot, NPI 1255619532 is active (record last updated 2014-04-23).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-23.