Healthcare Provider Details

I. General information

NPI: 1548140973
Provider Name (Legal Business Name): MARGARET MARY GROSSMAYER APRN, FNP-C
Entity Type: Individual
Gender: Female
Sole Proprietor: Y

II. Dates (important events)

Enumeration Date: 09/05/2025
Last Update Date: 11/26/2025
Certification Date: 11/26/2025
Deactivation Date:
Reactivation Date:

III. Provider practice location address

40 75TH ST
WILLOWBROOK IL
60527-2325
US

IV. Provider business mailing address

1421 WALNUT CIR
CAROL STREAM IL
60188-9074
US

V. Phone/Fax

Practice location:
  • Phone: 630-581-5372
  • Fax:
Mailing address:
  • Phone:
  • Fax:

VI. Provider taxonomy

Scope of Practice (Provider specialty)

# 1
Primary TaxonomyY
Taxonomy Code363L00000X
TaxonomyNurse Practitioner
License Number209033129
License Number StateIL

VIII. Authorized Official

Name:
Title or Position:
Credential:
Phone: