Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aleksandra Gmurczyk, MD

Nephrology Physician in Chicago, IL · enumerated 2008.

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

National Provider Identifier

1720259617

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Registry record

Entity type Individual (Type 1)

Name Dr. Aleksandra Gmurczyk

Credential MD

Sex Female

Practice address 710 N Fairbanks Ct, 4-500, Chicago, IL, 60611

Phone (312) 695-4945

Fax (312) 926-4885

Enumeration date Mar 18, 2008

Last updated in NPPES Mar 31, 2010

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 036115632 (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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Aleksandra Gmurczyk?

Aleksandra Gmurczyk is registered in NPPES with the primary taxonomy of Nephrology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-31.