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Mary Kathryn Schaefer, PA-C

Physician Assistant in Chicago, IL · enumerated 2006.

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

National Provider Identifier

1598864159

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Registry record

Entity type Individual (Type 1)
Name Mary Kathryn Schaefer
Credential PA-C
Sex Female
Practice address 675 N Saint Clair St Ste 21-100, Chicago, IL, 60611
Phone (312) 695-0990
Fax (312) 695-1106
Enumeration date Sep 21, 2006
Last updated in NPPES Jan 17, 2022

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085-002492 (IL) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 085002492 (IL) Primary

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 Mary Schaefer practice?
The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Schaefer?
The National Provider Identifier (NPI) for Mary Schaefer is 1598864159, 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 2022-01-17.