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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. David L Sullivan Jr.

Other Technician in Petaluma, CA · enumerated 2007.

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

National Provider Identifier

1255471355

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Registry record

Entity type Individual (Type 1)
Name Mr. David L Sullivan Jr.
Sex Male
Practice address 599 Tomales Rd, Hs A School, Petaluma, CA, 94952
Phone (707) 765-7493
Fax (707) 765-7329
Enumeration date Feb 7, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

247200000X Other Technician Technologists, Technicians & Other Technical Service Providers 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.

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Frequently asked questions

Is NPI 1255471355 active?
Yes, as of the latest NPPES snapshot, NPI 1255471355 is active (record last updated 2007-07-08).
How do I verify David Sullivan's NPI record?
Cross-check NPI 1255471355 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.