GILLIAN KATZ M.D., PLLC
NPI 1235363615
Internal Medicine - Endocrinology, Diabetes & Metabolism in New York, NY

Active since May 13, 2009
166 5TH AVE, 2ND FLOOR, NEW YORK, NY 10010(646) 421-6062(646) 895-7604 Get Directions Write a Review

NPPES record last updated: May 13, 2009. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Gillian Katz M.d., Pllc NPPES

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

GILLIAN KATZ M.D., PLLC (NPI 1235363615) is a healthcare organization registered as an endocrinology, diabetes & metabolism in New York, New York and active in the NPI registry since May 2009. The organization lists Gillian Katz, Owner, as its authorized official.

NPPES Registry Identity

NPI1235363615
Entity TypeOrganization
Primary Taxonomy207RE0101X
Legal Business NameGILLIAN KATZ M.D., PLLC
Location Address166 5TH AVE, 2ND FLOORNew York, NY 10010-5909
Mailing Address166 5th Ave, 2nd FloorNew York, NY 10010-5909 · (646) 421-6062 · Fax (646) 895-7604
Fax(646) 895-7604
Organization SubpartNo
Authorized OfficialGillian KatzOwner · (646) 421-6062
Enumeration DateMay 13, 2009
NPI 1235363615 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License Licensed in NY · 183999-1
Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

166 5TH AVE, New York, NY 10010

Other Names 1

Former Legal Business NameGillian Katz M.d., Pllc

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 10

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

Dermatology
166 5TH AVE, 2ND FL.
NEW YORK, NY 10010
Surgery (Plastic and Reconstructive Surgery)
166 5TH AVE, 2ND FLOOR
NEW YORK, NY 10010
Clinic/Center (Primary Care)
166 5TH AVE, 2ND FLOOR
NEW YORK, NY 10010
Dermatology
166 5TH AVE, 2ND FLOOR
NEW YORK, NY 10010
Plastic Surgery
166 5TH AVE, 2ND FLOOR
NEW YORK, NY 10010
Physician Assistant
166 5TH AVE
NEW YORK, NY 10010
Dermatology
166 5TH AVE, 2ND FL.
NEW YORK, NY 10010
Chiropractor
166 5TH AVE, 2ND FLOOR
NEW YORK, NY 10010

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 Gillian Katz M.D., PLLC's NPI number?

The NPI number for Gillian Katz M.D., PLLC is 1235363615. It was assigned to this organization in the NPPES registry on May 13, 2009.

Where is Gillian Katz M.D., PLLC located?

Gillian Katz M.D., PLLC is located at 166 5th Ave 2nd Floor, New York, NY 10010. The listed phone number is (646) 421-6062.

What is Gillian Katz M.D., PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

When was this NPI record last updated?

The NPPES record for Gillian Katz M.D., PLLC was last updated on May 13, 2009. NPI Profile syncs with the weekly NPPES data releases published by CMS.