Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Andrew Kowalski, M.D.
Nephrology Physician in Addison, IL · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1114293123
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Registry record
Entity type Individual (Type 1)
Name Dr. Andrew Kowalski
Credential M.D.
Sex Male
Practice address 2055 W Army Trail Rd Ste 110e, Addison, IL, 60101
Phone (773) 284-9247
Fax (773) 284-9249
Enumeration date Mar 25, 2012
Last updated in NPPES Aug 4, 2025
Taxonomy & licenses
207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 036137310 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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.
Frequently asked questions
Where does Andrew Kowalski practice?
The practice location on file with NPPES is in Addison, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Andrew Kowalski?
The National Provider Identifier (NPI) for Andrew Kowalski is 1114293123, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-04.