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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JUAN CONSTANTINO FERNANDEZ MD
NPI 1851399539
Internal Medicine in Red Hook, NY

Active since July 07, 2005
19 E MARKET ST, RED HOOK, NY 12571(845) 758-8896 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Juan Constantino Fernandez Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JUAN CONSTANTINO FERNANDEZ MD (NPI 1851399539) is an individual internal medicine provider in Red Hook, New York, licensed in New York (115969) and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1851399539
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JUAN CONSTANTINO FERNANDEZCredential: MD
Location Address19 E MARKET STRed Hook, NY 12571-1424
Mailing Address19 E Market StRed Hook, NY 12571-1424 · (845) 758-8896
Phone(845) 758-8896
Sole ProprietorNo
Enumeration DateJuly 7, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1851399539 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 115969
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
19 E MARKET ST, Red Hook, NY 12571
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Other Identifiers 2

Other117097NY · Mvp Health Plan
Medicaid00214613NY

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PLANNED PARENTHOOD OF THE MID HUDSON VALLEY
Clinic/Center (Ambulatory Family Planning Facility)
19 E MARKET ST
RED HOOK, NY 12571
Dutchess County (845) 758-2032

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Juan Fernandez's NPI number?

The NPI number for Juan Fernandez is 1851399539. It was assigned to this individual provider in the NPPES registry on July 7, 2005.

Where is Juan Fernandez located?

Juan Fernandez practices at 19 E Market St, Red Hook, NY 12571. The listed phone number is (845) 758-8896.

What is Juan Fernandez's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Juan Fernandez was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.