NPPES file of Aug 9, 2026

Maria Wolter, APN

Nurse Practitioner · Oak Brook, IL

Maria Wolter, APN is a nurse practitioner with a practice address in Oak Brook, Illinois, and NPI 1215523345, issued on Dec 13, 2020. Check the license (Illinois 209.021991, 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
1215523345
Name
Maria Wolter
Credential
APN
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
209.021991 IL
041.422557 IL
Self-reported in NPPES; status is on the state search
Practice location
3011 Butterfield RD Ste 240, Oak Brook, IL 60523
Phone
(630) 348-3840
Enumerated
Dec 13, 2020
Record last updated
Aug 18, 2023
Fax
(630) 348-3841
Medicare enrollment
Enrolled (PECOS I20210317000015); 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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8 nearest nurse practitioner records → All 4,892 in Illinois → Look up another NPI →

Also registered at 3011 Butterfield RD Ste 240

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

  1. Claire Curran, FNP-CNurse Practitioner1104529791
  2. Rebecca Downey, MS, RDN, LDNRegistered Dietitian1932639473
  3. Kimberly Doyle, NPFamily Nurse Practitioner1396160297
  4. Zaid Jabbar, M.D.Internal Medicine Physician1730351115
  5. Nidhi Mittal, APNNurse Practitioner1487354882
  6. Omayra Silva, APNFamily Nurse Practitioner1619502218

Verify Maria Wolter 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 209.021991    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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40% fewer Medicare Part D claims than the average nurse practitioner in 2024

668 Medicare Part D claims for 134 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Maria Wolter668
  2. Specialty average1,109

Most prescribed

  1. Metformin Hcl Er134 claims
  2. Mounjaro110 claims
  3. Ozempic104 claims
  4. Topiramate47 claims
  5. Trulicity28 claims
  6. Naltrexone Hcl18 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.

Industry payments in 2024: $2,617.41

130 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maria Wolter$2,617.41
  2. Specialty average$791.64

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Dupage Medical Group LtdSchaumburg, IL

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

Maria Wolter among 4,892 nurse practitioner records in Illinois

Maria Wolter, APN is one of 4,892 nurse practitioner records with a practice address in Illinois. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 61% of them.

  • NPI issued2020 · 61% of these records are older, 33% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2020 · median 2018 among the 3,389 with a school on file
  • Record last updated2023 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 nurse practitioner records list a practice address in Oak Brook

They are 13 of the 950 NPPES records with a practice address in Oak Brook, and 4,892 nurse practitioner records in Illinois.

All 4,892 in Illinois → Every provider in Oak Brook → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Erin Burke, CNPOak Brook, IL 605231215644869
  2. Claire Curran, FNP-COak Brook, IL 605231104529791
  3. Kari Davey, APNOak Brook, IL 605231770093817
  4. Samantha Duveneck, APRNOak Brook, IL 605231184574469
  5. Jonessa Farano, R.N., MSN, APRNOak Brook, IL 605231770673774
  6. Lu Ying Hei, NURSE PRACTITIONEROak Brook, IL 605231285122713
  7. Claire Lee, FNPOak Brook, IL 605231336015833
  8. Nidhi Mittal, APNOak Brook, IL 605231487354882

Common questions

What is Maria Wolter, APN's NPI number?

Maria Wolter, APN's National Provider Identifier (NPI) is 1215523345, issued on Dec 13, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Maria Wolter, APN located?

The NPPES record lists a practice address at 3011 Butterfield RD Ste 240, Oak Brook, IL, 60523. Phone: (630) 348-3840. Providers update this record themselves, so call before visiting.

How can I verify Maria Wolter, APN's license?

NPPES lists Illinois license number 209.021991, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Maria Wolter, APN prescribe under Medicare Part D?

In 2024, Maria Wolter, APN had 668 Medicare Part D claims for 134 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.