Thomas P O'Sullivan, DDS — NPI 1861591372
Thomas P O'Sullivan, DDS’s National Provider Identifier is 1861591372. NPPES classifies this as a Type 1 individual record and reports a practice location in Leawood, Kansas. The primary taxonomy is General Practice Dentistry.
Key facts
- NPI
- 1861591372
- Entity type
- Type 1 individual
- NPPES status
- Active in the August 10, 2026 snapshot
- Practice location
- 11111 NALL AVE, STE 106
Leawood, Kansas 66211 - Practice telephone
- (913) 383-2600
- Primary taxonomy
- General Practice Dentistry
- Enumeration date
- September 21, 2006
- NPPES last update
- July 8, 2007
- Source
- CMS NPPES, NPPES Data Dissemination August 2026 V2
Questions answered by the NPPES record
What is the NPI for Thomas P O'Sullivan, DDS?
The NPI listed for Thomas P O'Sullivan, DDS in the NPPES snapshot is 1861591372. The number passes the NPI check-digit test and is recorded as active in that snapshot.
Is NPI 1861591372 an individual or organization record?
NPPES records NPI 1861591372 as an Entity Type 1 record, which CMS assigns to an individual health care provider.
Where is the reported practice location?
The primary practice location reported to NPPES is 11111 NALL AVE, STE 106, Leawood, Kansas 66211.
What taxonomy codes are listed for this NPI?
One taxonomy code is listed: General Practice Dentistry (1223G0001X), the primary taxonomy. Names come from the NUCC Health Care Provider Taxonomy code set version 26.1; definitions are not reproduced.
When was the NPPES record last updated?
NPPES reports a last update date of July 8, 2007 and an enumeration date of September 21, 2006, as published in NPPES Data Dissemination August 2026 V2.
Source and data date
All facts on this page come from the Centers for Medicare & Medicaid Services (CMS) NPPES data dissemination file NPPES Data Dissemination August 2026 V2, released August 10, 2026 (snapshot date 2026-08-10). The record was reproduced from the main provider file without edits; only the fields listed on the methodology page are published.
CMS updates NPPES continuously and this page reflects a single monthly snapshot. Confirm current details in the official NPPES NPI Registry.
Directory pages
This profile is listed on the Leawood, Kansas NPI directory and the Kansas NPI directory.
Other published profiles in Leawood, KS
Up to ten other profiles this site publishes for Leawood, listed alphabetically. Appearing together here indicates only a shared reported practice city, not any affiliation or relationship. The city page lists all 45 published profiles.
Independent service disclaimer
This directory is an independent, experimental publication of public NPPES fields. It is not affiliated with or endorsed by CMS, NPPES, Medicare, the American Medical Association, or the National Uniform Claim Committee. An NPI is an administrative identifier. Its presence here does not establish that a provider is licensed, credentialed, board certified, in good standing, accepting patients or insurance, employed by or affiliated with any organization, or currently practicing. Nothing on this page is medical, legal, or insurance advice.