Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aleksandra Kolnick, DO

Internal Medicine Physician in Burlington, MA · enumerated 2019.

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

National Provider Identifier

1336708213

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Registry record

Entity type Individual (Type 1)

Name Aleksandra Kolnick

Credential DO

Sex Female

Practice address 41 Mall Rd, Burlington, MA, 01805

Phone (781) 744-5700

Enumeration date Jun 13, 2019

Last updated in NPPES Jul 29, 2022

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 294842 (MA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Aleksandra Kolnick practice?

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

What is the NPI number for Aleksandra Kolnick?

The National Provider Identifier (NPI) for Aleksandra Kolnick is 1336708213, 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 2022-07-29.