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

Dr. Anna M. Trzcinska, D.M.D

Oral and Maxillofacial Pathology Dentistry in Chicago, IL · enumerated 2012.

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

National Provider Identifier

1659620318

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Registry record

Entity type Individual (Type 1)

Name Dr. Anna M. Trzcinska

Credential D.M.D

Sex Female

Practice address Chicago, IL, 60637

Phone (773) 834-2555

Fax (773) 702-1119

Enumeration date Sep 9, 2012

Last updated in NPPES Jul 17, 2024

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

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 019.029209 (IL) Secondary

1223P0106X Oral and Maxillofacial Pathology Dentistry Dental Providers · License 019029209 (IL) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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

What is the NPI number for Anna Trzcinska?

The National Provider Identifier (NPI) for Anna Trzcinska is 1659620318, a Type 1 (individual) record in the CMS NPPES registry.

Where does Anna Trzcinska practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-17.