Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

A Kavaliunas MD Sc

Q: What type of organization is A Kavaliunas MD Sc?

A Kavaliunas MD Sc is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Internal Medicine Physician in Chicago, IL · enumerated 2009 · authorized official Algirdas Kavaliunas, Provider.

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

National Provider Identifier

1003058058

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Registry record

Entity type Organization (Type 2)

Legal business name A Kavaliunas MD Sc

Practice address 5540 S Pulaski Rd, Chicago, IL, 60629

Phone (773) 585-2802

Enumeration date Apr 6, 2009

Last updated in NPPES Nov 3, 2009

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036036207 (IL) Primary

Authorized official

Name Algirdas Kavaliunas

Title Provider

Phone (773) 585-2802

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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is A Kavaliunas MD Sc?

A Kavaliunas MD Sc is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-03.