NPPES file of Aug 9, 2026

Paul John Denemark, DDS, MSD

Periodontics · Downers Grove, IL

Paul John Denemark, DDS, MSD is a periodontics with a practice address in Downers Grove, Illinois, and NPI 1114163185, issued on Dec 22, 2008. Check the license (Illinois 019022926, 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
1114163185
Name
Paul John Denemark
Credential
DDS, MSD
Primary taxonomy
Periodontics 1223P0300X
License number
019022926 IL
Self-reported in NPPES; status is on the state search
Practice location
3450 Lacy Road, Downers Grove, IL 60515
Phone
(630) 743-4967
Enumerated
Dec 22, 2008
Record last updated
Aug 19, 2016 (not updated in 10 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 3450 Lacy Road

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

  1. Daniel Deligio, O.D.Optometrist1043698715

Verify Paul John Denemark 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 019022926
    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
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87% fewer Medicare Part D claims than the average periodontics in 2024

35 Medicare Part D claims for 19 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Paul Denemark35
  2. Specialty average277

Most prescribed

  1. Ibuprofen15 claims
  2. Amoxicillin14 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: $20.05

3 payments; by number, the most common kind was food and beverage; the largest payer was Align Technology, Inc. The 2,966 providers of this specialty with any payment received $1,338.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Paul Denemark$20.05
  2. Specialty average$1,338.41

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

Paul John Denemark among 214 periodontics records in Illinois

Paul John Denemark, DDS, MSD is one of 214 periodontics records with a practice address in Illinois. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 64% of them.

  • NPI issued2008 · 64% of these records are older, 27% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2016 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Periodontics providers in Illinois

There are 214 periodontics records in Illinois.

The 8 periodontics records with the nearest ZIP codes

  1. Jingyuan Fan, DDSDowners Grove, IL 605151952718629
  2. Joshua Mayer, DMD, MSDowners Grove, IL 605151710512090
  3. John Micaletti, D.D.S., M.S.Clarendon Hills, IL 605141912124660
  4. Robert Poulsom, D.D.S., M.S., J.D.Downers Grove, IL 605161689744054
  5. Yahya Sayed Suliman Atassi, DDS, MSDowners Grove, IL 605161639956758
  6. Nidhi Shah, DDS,MDSDowners Grove, IL 605161992108013
  7. Justin Villanueva, DMD, MSD, DHLWoodridge, IL 605171174076236
  8. Gina Gruendeman-Gordon, DDSOak Brook, IL 605231730356270

Common questions

What is Paul John Denemark, DDS, MSD's NPI number?

Paul John Denemark, DDS, MSD's National Provider Identifier (NPI) is 1114163185, issued on Dec 22, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Paul John Denemark, DDS, MSD located?

The NPPES record lists a practice address at 3450 Lacy Road, Downers Grove, IL, 60515. Phone: (630) 743-4967. Providers update this record themselves, so call before visiting.

How can I verify Paul John Denemark, DDS, MSD's license?

NPPES lists Illinois license number 019022926, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Paul John Denemark, DDS, MSD prescribe under Medicare Part D?

In 2024, Paul John Denemark, DDS, MSD had 35 Medicare Part D claims for 19 beneficiaries; the average among periodontics prescribers was 277. 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.