Dr. Harold Alberto Fernandez, M.D. — NPI 1720196546
Dr. Harold Alberto Fernandez, M.D.’s National Provider Identifier is 1720196546. NPPES classifies this as a Type 1 individual record and reports a practice location in Stony Brook, New York. The primary taxonomy is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician.
Key facts
- NPI
- 1720196546
- Entity type
- Type 1 individual
- NPPES status
- Active in the August 10, 2026 snapshot
- Practice location
- 100 NICOLLS RD, HSC L19-080
Stony Brook, New York 11794 - Practice telephone
- (631) 444-1820
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
- Enumeration date
- August 29, 2006
- NPPES last update
- October 12, 2012
- Source
- CMS NPPES, NPPES Data Dissemination August 2026 V2
Questions answered by the NPPES record
What is the NPI for Dr. Harold Alberto Fernandez, M.D.?
The NPI listed for Dr. Harold Alberto Fernandez, M.D. in the NPPES snapshot is 1720196546. The number passes the NPI check-digit test and is recorded as active in that snapshot.
Is NPI 1720196546 an individual or organization record?
NPPES records NPI 1720196546 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 100 NICOLLS RD, HSC L19-080, Stony Brook, New York 11794.
What taxonomy codes are listed for this NPI?
One taxonomy code is listed: Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (208G00000X), 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 October 12, 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 Stony Brook, New York NPI directory and the New York NPI directory.
Other published profiles in Stony Brook, NY
Up to ten other profiles this site publishes for Stony Brook, listed alphabetically. Appearing together here indicates only a shared reported practice city, not any affiliation or relationship. The city page lists all 42 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.