Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARY CATHERINE BAKER DNP, AGACNP-BC
NPI 1578418422
Nurse Practitioner in Chicago, IL

Q: What is Mary Baker's NPI number?

The NPI number for Mary Baker is 1578418422. It was assigned to this individual provider in the NPPES registry on March 4, 2026.

Q: What is Mary Baker's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Q: When was this NPI record last updated?

The NPPES record for Mary Baker was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 04, 2026

251 E HURON ST STE 5-704, CHICAGO, IL 60611(312) 695-0061(312) 926-8341 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 23, 2026, Mar 4, 2026 (2 updates tracked since 2026).

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About Mary Catherine Baker Dnp, Agacnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY CATHERINE BAKER DNP, AGACNP-BC (NPI 1578418422) is an individual nurse practitioner in Chicago, Illinois, licensed in Illinois (209035259) and active in the NPI registry since March 2026.

NPPES Registry Identity

NPI1578418422

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMARY CATHERINE BAKERCredential: DNP, AGACNP-BC

Location Address251 E HURON ST STE 5-704Chicago, IL 60611-2908

Mailing Address251 E Huron St Ste 5-704Chicago, IL 60611-2908 · (312) 695-0061 · Fax (312) 926-8341

Phone(312) 695-0061

Fax(312) 926-8341

Sole ProprietorNo

Enumeration DateMarch 4, 2026

Last NPPES UpdateSeptember 23, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 23, 2026

✔ NPI 1578418422 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in IL · 209035259

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Also ListedNurse Practitioner · Acute CareTaxonomy 363LA2100X · License 041.497488 (IL)

251 E HURON ST STE 5-704, Chicago, IL 60611

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