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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.

WILLIAM BORENZWEIG
NPI 1487395026
Obstetrics & Gynecology in New York, NY

Active since April 06, 2022
1107 5TH AVE # 1E, NEW YORK, NY 10128(212) 410-6700 Get Directions Write a Review

NPPES record last updated: August 17, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

Record update history: Aug 17, 2026, Apr 6, 2022 (2 updates tracked since 2022).

About William Borenzweig NPPES

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

WILLIAM BORENZWEIG (NPI 1487395026) is an individual obstetrics & gynecology provider in New York, New York, licensed in New York (341274) and active in the NPI registry since April 2022.

NPPES Registry Identity

NPI1487395026
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameWILLIAM BORENZWEIG
Location Address1107 5TH AVE # 1ENew York, NY 10128-0145
Mailing Address1107 5th Ave # 1eNew York, NY 10128-0145 · (212) 410-6700
Phone(212) 410-6700
Sole ProprietorYes
Enumeration DateApril 6, 2022
Last NPPES UpdateAugust 17, 20262 updates tracked since enumeration
NPPES CertifiedAugust 17, 2026
✔ NPI 1487395026 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in NY · 341274
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1107 5TH AVE # 1E, New York, NY 10128
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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

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

DR. ERIC RAY MITCHELL M.D.
Obstetrics & Gynecology
1107 5TH AVE # 1E
NEW YORK, NY 10128
New York County (212) 410-6700

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 William Borenzweig's NPI number?

The NPI number for William Borenzweig is 1487395026. It was assigned to this individual provider in the NPPES registry on April 6, 2022.

Where is William Borenzweig located?

William Borenzweig practices at 1107 5th Ave # 1E, New York, NY 10128. The listed phone number is (212) 410-6700.

What is William Borenzweig's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

When was this NPI record last updated?

The NPPES record for William Borenzweig was last updated on August 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 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.