Ivar Leslie Frithsen, MD — NPI 1891803755
Ivar Leslie Frithsen, MD’s National Provider Identifier is 1891803755. NPPES classifies this as a Type 1 individual record and reports a practice location in Keene, New Hampshire. The primary taxonomy is Family Medicine Physician.
Key facts
- NPI
- 1891803755
- Entity type
- Type 1 individual
- NPPES status
- Active in the August 10, 2026 snapshot
- Practice location
- 580 COURT ST
Keene, New Hampshire 03431 - Practice telephone
- (603) 354-5454
- Primary taxonomy
- Family Medicine Physician
- Enumeration date
- August 29, 2006
- NPPES last update
- April 18, 2012
- Source
- CMS NPPES, NPPES Data Dissemination August 2026 V2
Questions answered by the NPPES record
What is the NPI for Ivar Leslie Frithsen, MD?
The NPI listed for Ivar Leslie Frithsen, MD in the NPPES snapshot is 1891803755. The number passes the NPI check-digit test and is recorded as active in that snapshot.
Is NPI 1891803755 an individual or organization record?
NPPES records NPI 1891803755 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 580 COURT ST, Keene, New Hampshire 03431.
What taxonomy codes are listed for this NPI?
One taxonomy code is listed: Family Medicine Physician (207Q00000X), 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 April 18, 2012 and an enumeration date of August 29, 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 Keene, New Hampshire NPI directory and the New Hampshire NPI directory.
Other published profiles in Keene, NH
Up to ten other profiles this site publishes for Keene, listed alphabetically. Appearing together here indicates only a shared reported practice city, not any affiliation or relationship. The city page lists all 5 published profiles.
Corrections and removal requests
To change the underlying record, the provider or an authorized representative must update it with CMS through the NPPES provider portal; this site cannot edit NPPES data. Changes appear here only after a later monthly file is processed.
To report a presentation error on this site, or to ask that a practice address or telephone number be suppressed from this page, email contact@npireference.com with the NPI and the request. See the corrections page for the full process and timelines. Do not include patient or clinical information.
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.