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DR. MAUREEN E GROSDIDIER M.D.
NPI 1104824374
Family Medicine in Park Ridge, IL

Active since July 12, 2005
850 BUSSE HWY, PARK RIDGE, IL 60068(847) 825-0300(847) 825-1825 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Maureen E Grosdidier M.d. NPPES

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

DR. MAUREEN E GROSDIDIER M.D. (NPI 1104824374) is an individual family medicine provider in Park Ridge, Illinois and active in the NPI registry since July 2005.

NPPES Registry Identity

NPI1104824374
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MAUREEN E GROSDIDIERCredential: M.D.
Location Address850 BUSSE HWYPark Ridge, IL 60068-2302
Mailing Address850 Busse HwyPark Ridge, IL 60068-2302 · (847) 825-0300 · Fax (847) 825-1825
Phone(847) 825-0300
Fax(847) 825-1825
Sole ProprietorNo
Enumeration DateJuly 12, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1104824374 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
850 BUSSE HWY, Park Ridge, IL 60068
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Maureen E Grosdidier M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Maureen Grosdidier reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lutheran General Hospital
1.1 mi
Cardiovascular Disease
1775 DEMPSTER ST
Park Ridge, IL 60068
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Advocate Health And Hospitals Corporation
  • 4,870 clinicians in this Medicare group
NPI 1801809306 (847) 723-2210

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MICHAEL JAMES KATSOULIS D.O.
Internal Medicine (Pulmonary Disease)
850 BUSSE HWY
PARK RIDGE, IL 60068
Cook County (847) 759-4770
SERAH AMANDA FREY DPT
Physical Therapist
850 BUSSE HWY
PARK RIDGE, IL 60068
Cook County (847) 384-8511
ARVEY M STONE MD
Internal Medicine (Pulmonary Disease)
850 BUSSE HWY
PARK RIDGE, IL 60068
Cook County (847) 759-4770
MAURICIO VALENCIA
Nurse Practitioner (Family)
850 BUSSE HWY
PARK RIDGE, IL 60068
Cook County (847) 759-4770
DR. CAROL GRAHAM M.D.
Family Medicine
850 BUSSE HWY
PARK RIDGE, IL 60068
Cook County (847) 825-0300
DR. WILLIAM J BRANDER M.D.
Family Medicine
850 BUSSE HWY
PARK RIDGE, IL 60068
Cook County (847) 825-0300
DR. ANGELA ELENA PAPASSAVAS M.D.
Family Medicine
850 BUSSE HWY
PARK RIDGE, IL 60068
Cook County (847) 825-0300
RIDGE FAMILY PHYSICIANS, LLC
Family Medicine
850 BUSSE HWY
PARK RIDGE, IL 60068
Cook County (847) 825-0300

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maureen Grosdidier's NPI number?

The NPI number for Maureen Grosdidier is 1104824374. It was assigned to this individual provider in the NPPES registry on July 12, 2005.

Where is Maureen Grosdidier located?

Maureen Grosdidier practices at 850 Busse Hwy, Park Ridge, IL 60068. The listed phone number is (847) 825-0300.

What is Maureen Grosdidier's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Maureen Grosdidier enrolled in Medicare?

Yes. Maureen Grosdidier is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Maureen Grosdidier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Maureen Grosdidier reassigns Medicare benefits to Lutheran General Hospital (Park Ridge, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Maureen Grosdidier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Maureen Grosdidier was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.