Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Leonid Bilenkin, PHYSICIAN ASSISTANT

Surgical Physician Assistant in Greenwich, CT · enumerated 2006.

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

National Provider Identifier

1083780795

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Registry record

Entity type Individual (Type 1)

Name Leonid Bilenkin

Credential PHYSICIAN ASSISTANT

Sex Male

Practice address 55 Holly Hill Ln, 110, Greenwich, CT, 06830

Phone (203) 863-4670

Fax (203) 863-4674

Enumeration date Nov 27, 2006

Last updated in NPPES Mar 17, 2018

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 003739 (NY) Secondary

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 002258 (CT) Primary

Other identifiers

Identifier	Type	State	Issuer
002258	Other	CT	CONNECTICUT STATE PHYSICIAN ASSISTANT LICENSE
003739-1	Other	NY	NY STATE PHYSICIAN ASSISTANT LICENSE

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Leonid Bilenkin practice?

The practice location on file with NPPES is in Greenwich, CT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Leonid Bilenkin?

The National Provider Identifier (NPI) for Leonid Bilenkin is 1083780795, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-17.