NPPES file of Aug 9, 2026

Maureen E. Grosdidier, M.D.

Family Medicine Physician · Park Ridge, IL

Maureen E. Grosdidier, M.D. is a family medicine physician with a practice address in Park Ridge, Illinois, and NPI 1104824374, issued on Jul 12, 2005. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1104824374
Name
Maureen E. Grosdidier
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
Practice location
850 Busse Hwy, Park Ridge, IL 60068
Phone
(847) 825-0300
Enumerated
Jul 12, 2005
Record last updated
Jul 13, 2026
Fax
(847) 825-1825
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 850 Busse Hwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Damaris Amari, F.N.PFamily Nurse Practitioner1770901878
  2. William Brander, M.D.Family Medicine Physician1235137498
  3. Serah Frey, DPTPhysical Therapist1083013395
  4. Carol Graham, M.D.Family Medicine Physician1194723197
  5. Michael Katsoulis, D.O.Pulmonary Disease Physician1073802435
  6. Ami Modi, DOPulmonary Disease Physician1831621259

Verify Maureen E. Grosdidier in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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100% fewer Medicare Part D claims than the average family medicine physician in 2024

11 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Maureen Grosdidier11
  2. Specialty average3,544

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Maureen E. Grosdidier among 6,215 family medicine physician records in Illinois

Maureen E. Grosdidier, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

88 family medicine physician records list a practice address in Park Ridge

They are 88 of the 2,577 NPPES records with a practice address in Park Ridge, and 6,215 family medicine physician records in Illinois.

The 8 family medicine physician records with the nearest ZIP codes

  1. Patricia Bloom, MDPark Ridge, IL 600681457326324
  2. William Brander, M.D.Park Ridge, IL 600681235137498
  3. Brian Chicoine, MDPark Ridge, IL 600681629005228
  4. John Cottrell, DOPark Ridge, IL 600681639175664
  5. Michael Fisher, MDPark Ridge, IL 600681760481220
  6. Carol Graham, M.D.Park Ridge, IL 600681194723197
  7. Judith Gravdal, M.D.Park Ridge, IL 600681437194594
  8. Peter Kerstan, MDPark Ridge, IL 600681780687301

Common questions

What is Maureen E. Grosdidier, M.D.'s NPI number?

Maureen E. Grosdidier, M.D.'s National Provider Identifier (NPI) is 1104824374, issued on Jul 12, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Maureen E. Grosdidier, M.D. located?

The NPPES record lists a practice address at 850 Busse Hwy, Park Ridge, IL, 60068. Phone: (847) 825-0300. Providers update this record themselves, so call before visiting.

How can I verify Maureen E. Grosdidier, M.D.'s license?

Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Maureen E. Grosdidier, M.D. prescribe under Medicare Part D?

In 2024, Maureen E. Grosdidier, M.D. had 11 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.