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RUTH ELIZABETH KESSLER MD
NPI 1457423170
Pediatrics in New York, NY

Active since November 15, 2006CLIA 33D0129666 · Waiver
120 EAST 75 STREET, NEW YORK, NY 10021(212) 734-3338(212) 734-1710 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Ruth Elizabeth Kessler Md NPPES

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

RUTH ELIZABETH KESSLER MD (NPI 1457423170) is an individual pediatrics provider in New York, New York, licensed in New York (081488) and active in the NPI registry since November 2006. She holds a CLIA Waiver certificate valid through December 17, 2027.

NPPES Registry Identity

NPI1457423170
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameRUTH ELIZABETH KESSLERCredential: MD
Location Address120 EAST 75 STREETNew York, NY 10021
Mailing Address120 East 75 StreetNew York, NY 10021 · (212) 734-3338 · Fax (212) 734-1710
Phone(212) 734-3338
Fax(212) 734-1710
Sole ProprietorNo
Enumeration DateNovember 15, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1457423170 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in NY · 081488
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
120 EAST 75 STREET, New York, NY 10021
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CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 33D0129666

Ruth E Kessler MD · New York, NY
Active · expires Dec 17, 2027
CLIA Number33D0129666
Laboratory TypePhysician Office
Certificate Effective DateDecember 18, 2025
Certificate Expiration DateDecember 17, 2027
Laboratory DirectorRuth E. Kessler
Laboratory Phone(212) 734-3338
Laboratory LocationRuth E Kessler MD120 E 75th, New York, NY 10021
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Ruth Kessler's NPI number?

The NPI number for Ruth Kessler is 1457423170. It was assigned to this individual provider in the NPPES registry on November 15, 2006.

Where is Ruth Kessler located?

Ruth Kessler practices at 120 East 75 Street, New York, NY 10021. The listed phone number is (212) 734-3338.

What is Ruth Kessler's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Does Ruth Kessler hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 33D0129666) is associated with this NPI, valid through December 17, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Ruth Kessler was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years 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.