Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert D. Sullivan, OD

Optometrist in Town & Country, MO · enumerated 2018.

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

National Provider Identifier

1043799844

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Registry record

Entity type Individual (Type 1)

Name Robert D. Sullivan

Credential OD

Sex Male

Practice address 2185 South Mason Rd, Town & Country, MO, 63131

Phone (314) 821-5666

Fax (314) 821-5322

Enumeration date Aug 13, 2018

Last updated in NPPES Nov 25, 2019

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 2018021513 (MO) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Robert Sullivan's NPI record?

Cross-check NPI 1043799844 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1043799844 active?

Yes, as of the latest NPPES snapshot, NPI 1043799844 is active (record last updated 2019-11-25).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-11-25.