NPPES file of Aug 9, 2026

Deanne De Leon

General Practice Dentistry · Downers Grove, IL

Deanne De Leon is a general practice dentistry with a practice address in Downers Grove, Illinois, and NPI 1659700789, issued on Nov 8, 2013. Check the license (Illinois 019.0295958, 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
1659700789
Name
Deanne De Leon
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
019.0295958 IL
Self-reported in NPPES; status is on the state search
Practice location
6311 Woodward Ave, Downers Grove, IL 60516
Phone
(630) 541-3119
Enumerated
Nov 8, 2013
Record last updated
Nov 8, 2013 (not updated in 13 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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8 nearest general practice dentistry records → All 5,276 in Illinois → Look up another NPI →

Also registered at 6311 Woodward Ave

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

  1. Aditya Obi, DDSDentist1306134515
  2. Sonia Saiz, D.D.S.General Practice Dentistry1588842751

Verify Deanne De Leon 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 019.0295958    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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86% fewer Medicare Part D claims than the average general practice dentistry in 2024

12 Medicare Part D claims, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Deanne De Leon12
  2. Specialty average83

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.

Deanne De Leon among 5,276 general practice dentistry records in Illinois

Deanne De Leon is one of 5,276 general practice dentistry 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 2013, is newer than 72% of them.

  • NPI issued2013 · 72% of these records are older, 27% 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 updated2013 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

44 general practice dentistry records list a practice address in Downers Grove

They are 44 of the 1,899 NPPES records with a practice address in Downers Grove, and 5,276 general practice dentistry records in Illinois.

All 5,276 in Illinois → Every provider in Downers Grove → General Practice Dentistry nationwide →

The 8 general practice dentistry records with the nearest ZIP codes

  1. Patrick Bannon, DDSDowners Grove, IL 605161881791507
  2. John Cassiani, DDSDowners Grove, IL 605161184820375
  3. Vincent Lin, D.D.S.Downers Grove, IL 605161760473839
  4. James McKee, DDSDowners Grove, IL 605161285701706
  5. Kevin Moss, D.M.D.Downers Grove, IL 605161437350238
  6. Sonia Saiz, D.D.S.Downers Grove, IL 605161588842751
  7. Lauren AbousslemanDowners Grove, IL 605151184440406
  8. Zayna Ajam, DMDDowners Grove, IL 605151588215248

Common questions

What is Deanne De Leon's NPI number?

Deanne De Leon's National Provider Identifier (NPI) is 1659700789, issued on Nov 8, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Deanne De Leon located?

The NPPES record lists a practice address at 6311 Woodward Ave, Downers Grove, IL, 60516. Phone: (630) 541-3119. Providers update this record themselves, so call before visiting.

How can I verify Deanne De Leon's license?

NPPES lists Illinois license number 019.0295958, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Deanne De Leon prescribe under Medicare Part D?

In 2024, Deanne De Leon had 12 Medicare Part D claims; the average among general practice dentistry prescribers was 83. 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.