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

Dr. Larisa Mararenko

Internal Medicine Physician in Brooklyn, NY · enumerated 2006.

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

National Provider Identifier

1679662415

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Registry record

Entity type Individual (Type 1)

Name Dr. Larisa Mararenko

Sex Female

Practice address Brooklyn, NY, 11212

Phone (718) 240-5100

Fax (718) 240-5498

Enumeration date Oct 12, 2006

Last updated in NPPES Apr 28, 2020

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 241522 (NY) Primary

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

Is NPI 1679662415 active?

Yes, as of the latest NPPES snapshot, NPI 1679662415 is active (record last updated 2020-04-28).

How do I verify Larisa Mararenko's NPI record?

Cross-check NPI 1679662415 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-28.