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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Holly Bienenstock, DO

Family Medicine Physician in Port Washington, NY · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1922058585

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Registry record

Entity type Individual (Type 1)
Name Dr. Holly Bienenstock
Credential DO
Sex Female
Practice address Port Washington, NY, 11050
Phone (516) 767-3161
Fax (516) 767-3143
Enumeration date May 12, 2006
Last updated in NPPES Mar 26, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 1638491 (NY) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Holly Bienenstock practice?
The practice location on file with NPPES is in Port Washington, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Holly Bienenstock?
The National Provider Identifier (NPI) for Holly Bienenstock is 1922058585, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-26.