NPPES file of Aug 9, 2026

Amy Jacqueline Altenberger, FNP

Family Nurse Practitioner · Willowbrook, IL

Amy Jacqueline Altenberger, FNP is a family nurse practitioner with a practice address in Willowbrook, Illinois, and NPI 1881374700, issued on Jul 25, 2023. Check the license (Illinois 209, 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
1881374700
Name
Amy Jacqueline Altenberger
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
209 IL
041455456 IL
Self-reported in NPPES; status is on the state search
Practice location
40 75TH St, Willowbrook, IL 60527
Phone
(630) 581-5372
Enumerated
Jul 25, 2023
Record last updated
Jul 25, 2023
Medicare enrollment
Enrolled (PECOS I20230927001277); accepts Medicare assignment
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 40 75TH St

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

  1. Noor Abutaha, APNFamily Nurse Practitioner1093456568
  2. George Antonopoulos, APRNFamily Nurse Practitioner1326660069
  3. Nimmy Baby, FNPFamily Nurse Practitioner1508502980
  4. Elizabeth BarnesNurse Practitioner1639918923
  5. Kathleen Barter, FNP-BCFamily Nurse Practitioner1225923857
  6. Jennelyn Belcina, NPNurse Practitioner1427608090

Verify Amy Jacqueline Altenberger 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    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

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94% fewer Medicare Part D claims than the average family nurse practitioner in 2024

79 Medicare Part D claims for 52 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Amy Altenberger79
  2. Specialty average1,305

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. University OF ChicagoChicago, IL

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

88 family nurse practitioner records list a practice address in Willowbrook

They are 88 of the 453 NPPES records with a practice address in Willowbrook, and 7,639 family nurse practitioner records in Illinois.

All 88 in Willowbrook → All 7,639 in Illinois → Every provider in Willowbrook →

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 Amy Jacqueline Altenberger, FNP's NPI number?

Amy Jacqueline Altenberger, FNP's National Provider Identifier (NPI) is 1881374700, issued on Jul 25, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Amy Jacqueline Altenberger, FNP located?

The NPPES record lists a practice address at 40 75TH St, Willowbrook, IL, 60527. Phone: (630) 581-5372. Providers update this record themselves, so call before visiting.

How can I verify Amy Jacqueline Altenberger, FNP's license?

NPPES lists Illinois license number 209, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Amy Jacqueline Altenberger, FNP prescribe under Medicare Part D?

In 2024, Amy Jacqueline Altenberger, FNP had 79 Medicare Part D claims for 52 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.