NPPES file of Aug 9, 2026

Marcus Mercer, DDS

Dentist · Lisle, IL

Marcus Mercer, DDS is a dentist with a practice address in Lisle, Illinois, and NPI 1407367857, issued on Oct 12, 2017. Check the license (Illinois 019.018685, 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
1407367857
Name
Marcus Mercer
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
019.018685 IL
Self-reported in NPPES; status is on the state search
Practice location
5526 E Lake Dr, Lisle, IL 60532
Phone
(630) 373-6309
Enumerated
Oct 12, 2017
Record last updated
Jun 16, 2018 (not updated in 8 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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Verify Marcus Mercer 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 019.018685
    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

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81% fewer Medicare Part D claims than the average dentist in 2024

16 Medicare Part D claims, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Marcus Mercer16
  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.

Marcus Mercer among 4,522 dentist records in Illinois

Marcus Mercer, DDS 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 2017, is newer than 71% of them.

  • NPI issued2017 · 71% of these records are older, 26% 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 updated2018 · 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).

12 dentist records list a practice address in Lisle

They are 12 of the 610 NPPES records with a practice address in Lisle, and 4,522 dentist records in Illinois.

The 8 dentist records with the nearest ZIP codes

  1. Pallavi Agarwal, DDSLisle, IL 605321821336322
  2. James Bergschneider, D.D.S.Lisle, IL 605321972749844
  3. Loraine Blanco, DMDLisle, IL 605321467386607
  4. Jennifer Brammeier, D.D.SLisle, IL 605321619176393
  5. Daniela BrzozowskiLisle, IL 605321013148675
  6. Barbara Chang, DDSLisle, IL 605321174606487
  7. Douglas Chang, DDSLisle, IL 605321659456002
  8. Michael GondaLisle, IL 605321417124686

Common questions

What is Marcus Mercer, DDS's NPI number?

Marcus Mercer, DDS's National Provider Identifier (NPI) is 1407367857, issued on Oct 12, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Marcus Mercer, DDS located?

The NPPES record lists a practice address at 5526 E Lake Dr, Lisle, IL, 60532. Phone: (630) 373-6309. Providers update this record themselves, so call before visiting.

How can I verify Marcus Mercer, DDS's license?

NPPES lists Illinois license number 019.018685, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Marcus Mercer, DDS prescribe under Medicare Part D?

In 2024, Marcus Mercer, DDS had 16 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.