Dr. John Byrne Fournier, M.D. — NPI 1629397120
Dr. John Byrne Fournier, M.D.’s National Provider Identifier is 1629397120. NPPES classifies this as a Type 1 individual record and reports a practice location in New Haven, Connecticut. The primary taxonomy is Student in an Organized Health Care Education/Training Program.
Key facts
- NPI
- 1629397120
- Entity type
- Type 1 individual
- NPPES status
- Active in the August 10, 2026 snapshot
- Practice location
- 20 YORK ST
New Haven, Connecticut 06510 - Practice telephone
- (203) 688-4242
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program
- Additional taxonomies
-
- Dermatology Physician
- Enumeration date
- May 24, 2010
- NPPES last update
- June 17, 2019
- Source
- CMS NPPES, NPPES Data Dissemination August 2026 V2
Questions answered by the NPPES record
What is the NPI for Dr. John Byrne Fournier, M.D.?
The NPI listed for Dr. John Byrne Fournier, M.D. in the NPPES snapshot is 1629397120. The number passes the NPI check-digit test and is recorded as active in that snapshot.
Is NPI 1629397120 an individual or organization record?
NPPES records NPI 1629397120 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 20 YORK ST, New Haven, Connecticut 06510.
What taxonomy codes are listed for this NPI?
2 taxonomy codes are listed. Primary: Student in an Organized Health Care Education/Training Program (390200000X). Additional: Dermatology Physician (207N00000X). 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 June 17, 2019 and an enumeration date of May 24, 2010, 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 New Haven, Connecticut NPI directory and the Connecticut NPI directory.
Other published profiles in New Haven, CT
Up to ten other profiles this site publishes for New Haven, listed alphabetically. Appearing together here indicates only a shared reported practice city, not any affiliation or relationship. The city page lists all 50 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.