NPPES file of Aug 9, 2026

William P. Madison, D.D.S.

Dentist · Chicago, IL

William P. Madison, D.D.S. is a dentist with a practice address in Chicago, Illinois, and NPI 1538454202, issued on Jun 10, 2011. Check the license (Illinois 019028626, 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
1538454202
Name
William P. Madison
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License number
019028626 IL
Self-reported in NPPES; status is on the state search
Practice location
811 W Wellington Ave, Chicago, IL 60657
Phone
(773) 871-1461
Enumerated
Jun 10, 2011
Record last updated
Jun 10, 2011 (not updated in 15 years: call before relying on the address or phone)
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 811 W Wellington Ave

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

  1. Ardit Ajdini, DMDGeneral Practice Dentistry1235989500
  2. Courtnie Akande, DMD, MPHGeneral Practice Dentistry1134823594
  3. Thaer Al Azzawi, D.M.D.Dentist1366823262
  4. Sophia Altenburg, DDSGeneral Practice Dentistry1124722681
  5. Luisa Amunategui, DMDGeneral Practice Dentistry1790480192
  6. Nazneen Baig, DMDGeneral Practice Dentistry1497505507

Verify William P. Madison 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 019028626
    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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81% fewer Medicare Part D claims than the average dentist in 2024

16 Medicare Part D claims for 14 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.

  1. William Madison16
  2. Specialty average86

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: $13.71

1 payment: food and beverage; the largest payer was Philips North America LLC. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Madison$13.71
  2. Specialty average$540.36

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

William P. Madison among 4,522 dentist records in Illinois

William P. Madison, D.D.S. is one of 4,522 dentist records with a practice address in Illinois. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 53% of them.

  • NPI issued2011 · 53% of these records are older, 45% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2011 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,148 dentist records list a practice address in Chicago

They are 1,148 of the 63,379 NPPES records with a practice address in Chicago, and 4,522 dentist records in Illinois.

The 8 dentist records with the nearest ZIP codes

  1. John Benedetto, DDSChicago, IL 606571417049503
  2. Hilliard Blank, DDSChicago, IL 606571437201084
  3. Joshua Ehrlich, DMDChicago, IL 606571922154962
  4. Soctt Emalfarb, D.D.S.Chicago, IL 606571083738256
  5. Jessica Emery, DMDChicago, IL 606571700920667
  6. Mark Hawkins, DDSChicago, IL 606571467461020
  7. Howard Jeon, DMDChicago, IL 606571821125030
  8. Chris Katris, DDS DENTISTChicago, IL 606571114045556

Common questions

What is William P. Madison, D.D.S.'s NPI number?

William P. Madison, D.D.S.'s National Provider Identifier (NPI) is 1538454202, issued on Jun 10, 2011. An NPI identifies a provider in billing; it is not a license.

Where is William P. Madison, D.D.S. located?

The NPPES record lists a practice address at 811 W Wellington Ave, Chicago, IL, 60657. Phone: (773) 871-1461. Providers update this record themselves, so call before visiting.

How can I verify William P. Madison, D.D.S.'s license?

NPPES lists Illinois license number 019028626, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does William P. Madison, D.D.S. prescribe under Medicare Part D?

In 2024, William P. Madison, D.D.S. had 16 Medicare Part D claims for 14 beneficiaries; the average among dentist prescribers was 86. 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.