NPPES file of Aug 9, 2026

Mary Baker, FNP

Family Nurse Practitioner · Downers Grove, IL

Mary Baker, FNP is a family nurse practitioner with a practice address in Downers Grove, Illinois, and NPI 1942626577, issued on Mar 6, 2014. Check the license (Illinois 209.010902, as entered in NPPES) with the Illinois board that licenses this profession; 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
1942626577
Name
Mary Baker
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
209.010902 IL
Self-reported in NPPES; status is on the state search
Practice location
1441 Branding Ave Ste 310, Downers Grove, IL 60515
Phone
(630) 829-1038
Enumerated
Mar 6, 2014
Record last updated
May 17, 2022
Medicare enrollment
Enrolled (PECOS I20141211000415); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1441 Branding Ave Ste 310

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

  1. Patricia Austermuehle, RNFamily Nurse Practitioner1972696136
  2. Joanna Bansfield, FNP-BCFamily Nurse Practitioner1992216816
  3. Dana Beyers, CNPFamily Nurse Practitioner1255664447
  4. Christine Bonavolante, LCSWClinical Social Worker1235292210
  5. Emily Clarke, APRNNurse Practitioner1154065167
  6. Corrina Cole, FNPFamily Nurse Practitioner1427082924

Verify Mary Baker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 209.010902    Check 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
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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34% fewer Medicare Part D claims than the average family nurse practitioner in 2024

864 Medicare Part D claims for 113 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 65 claims were for opioids.

  1. Mary Baker864
  2. Specialty average1,305

Most prescribed

  1. Furosemide44 claims
  2. Hydrocodone-Acetaminophen35 claims
  3. Albuterol Sulfate Hfa33 claims
  4. Atorvastatin Calcium32 claims
  5. Pantoprazole Sodium32 claims
  6. Eliquis30 claims

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.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationDowners Grove, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

83 family nurse practitioner records list a practice address in Downers Grove

They are 83 of the 1,899 NPPES records with a practice address in Downers Grove, and 7,639 family nurse practitioner records in Illinois.

All 83 in Downers Grove → All 7,639 in Illinois → Every provider in Downers Grove →

Other family nurse practitioner records in Illinois

  1. Crystal Aandahl, FNPNorth Chicago, IL1316497068
  2. Deborah Aaron, FNPChicago, IL1114024916
  3. Roseviminda Abano, CNPGurnee, IL1215318555
  4. Theresa AbbaduskyPekin, IL1265892046
  5. Nadia Abbasi-Kling, FNP-BCChicago, IL1033767736
  6. Manar Abdalla, FNPChicago, IL1700632411
  7. Mahubah Abdallah, FNP-CRochelle, IL1841752284
  8. Rana Abdallah, DNP, APRN, FNP-CLake Villa, IL1851261887
  9. Servet Abdelhafez, APRNBrookfield, IL1790505048
  10. Nadia Abdessalam, FNP-BCOak Lawn, IL1356888283

Common questions

What is Mary Baker, FNP's NPI number?

Mary Baker, FNP's National Provider Identifier (NPI) is 1942626577, issued on Mar 6, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Mary Baker, FNP located?

The NPPES record lists a practice address at 1441 Branding Ave Ste 310, Downers Grove, IL, 60515. Phone: (630) 829-1038. Providers update this record themselves, so call before visiting.

How can I verify Mary Baker, FNP's license?

NPPES lists Illinois license number 209.010902, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Baker, FNP prescribe under Medicare Part D?

In 2024, Mary Baker, FNP had 864 Medicare Part D claims for 113 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.