John Gerard Marchese, D.D.S
Dentist · Downers Grove, IL
John Gerard Marchese, D.D.S is a dentist with a practice address in Downers Grove, Illinois, and NPI 1073875357, issued on Jun 12, 2012. Check the license (Illinois 019-020451, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Gerard Marchese
- Credential
- D.D.S
- Primary taxonomy
- Dentist 122300000X
- License number
- 019-020451 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5133 Washington St, Downers Grove, IL 60515
- Phone
- (630) 964-7852
- Enumerated
- Jun 12, 2012
- Record last updated
- Jun 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 4,522 in Illinois → Look up another NPI →
Also registered at 5133 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- William Brennan, DDSDentist1235142746
- William Brennan, D.D.S.Dentist1265501175
- Sarah Cline, L.C.S.W.Clinical Social Worker1588946669
- John Keenan, DDSDentist1124233218
- Rachel Powers, MA, LCPC, NCCProfessional Counselor1639313794
Verify John Gerard Marchese in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 019-020451Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average dentist in 2024
14 Medicare Part D claims, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
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.
John Gerard Marchese among 4,522 dentist records in Illinois
John Gerard Marchese, 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 2012, is newer than 55% of them.
- NPI issued2012 · 55% of these records are older, 42% 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 updated2012 · 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).
56 dentist records list a practice address in Downers Grove
They are 56 of the 1,899 NPPES records with a practice address in Downers Grove, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in Downers Grove → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Sara Banuelos, D.D.SDowners Grove, IL 605151164542429
- Keith Bram, D.D.S.Downers Grove, IL 605151609088418
- William Brennan, DDSDowners Grove, IL 605151235142746
- William Brennan, D.D.S.Downers Grove, IL 605151265501175
- John Keenan, DDSDowners Grove, IL 605151124233218
- Theresa Lao, D.D.S.Downers Grove, IL 605151275684367
- John Maffeo, DDSDowners Grove, IL 605151598834475
- Richard Patelski, DDS MAGDDowners Grove, IL 605151417166968
Common questions
What is John Gerard Marchese, D.D.S's NPI number?
John Gerard Marchese, D.D.S's National Provider Identifier (NPI) is 1073875357, issued on Jun 12, 2012. An NPI identifies a provider in billing; it is not a license.
Where is John Gerard Marchese, D.D.S located?
The NPPES record lists a practice address at 5133 Washington St, Downers Grove, IL, 60515. Phone: (630) 964-7852. Providers update this record themselves, so call before visiting.
How can I verify John Gerard Marchese, D.D.S's license?
NPPES lists Illinois license number 019-020451, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does John Gerard Marchese, D.D.S prescribe under Medicare Part D?
In 2024, John Gerard Marchese, D.D.S had 14 Medicare Part D claims; 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.