NPPES file of Aug 9, 2026

Chad Ryan Wiersema, DDS

Endodontics · Homewood, IL

Chad Ryan Wiersema, DDS is an endodontics with a practice address in Homewood, Illinois, and NPI 1427114115, issued on Dec 28, 2006. Check the license (Illinois 021002195, 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
1427114115
Name
Chad Ryan Wiersema
Credential
DDS
Primary taxonomy
Endodontics 1223E0200X
License numbers
021002195 IL
019026244 IL
12010886A IN
Self-reported in NPPES; status is on the state search
Practice location
18130 Halsted St, Homewood, IL 60430
Phone
(708) 799-2550
Enumerated
Dec 28, 2006
Record last updated
Mar 1, 2012 (not updated in 14 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 18130 Halsted St

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

  1. Dasha Barss, D.D.S.,M.M.SC.Endodontics1922295559
  2. Lee Fillak, D.M.D.,M.S.Endodontics1427246057
  3. Michael Gideon, D.D.S.,M.S.D.Endodontics1851588412
  4. Anthony Griglione, D.M.D.Endodontics1508177239
  5. Alex Haralampopoulos, D.M.D.Endodontics1346438967
  6. Donald Miller, D.D.S.,M.S.Periodontics1407044415

Verify Chad Ryan Wiersema 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 021002195
    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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3.5 times the Medicare Part D claims of the average endodontics in 2024

422 Medicare Part D claims for 200 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Chad Wiersema422
  2. Specialty average121

Most prescribed

  1. Amoxicillin193 claims
  2. Methylprednisolone121 claims
  3. Ibuprofen61 claims
  4. Azithromycin25 claims
  5. Clindamycin Hcl14 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.

Chad Ryan Wiersema among 214 endodontics records in Illinois

Chad Ryan Wiersema, DDS is one of 214 endodontics 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 66% newer
  • In a Medicare fileYes · 64% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2012 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endodontics providers in Illinois

There are 214 endodontics records in Illinois.

The 8 endodontics records with the nearest ZIP codes

  1. Dasha Barss, D.D.S.,M.M.SC.Homewood, IL 604301922295559
  2. Lee Fillak, D.M.D.,M.S.Homewood, IL 604301427246057
  3. Michael Gideon, D.D.S.,M.S.D.Homewood, IL 604301851588412
  4. Anthony Griglione, D.M.D.Homewood, IL 604301508177239
  5. Alex Haralampopoulos, D.M.D.Homewood, IL 604301346438967
  6. Steven Logan, DDSJoliet, IL 604351376653402
  7. Nasser Maali, DDSJoliet, IL 604351659434975
  8. Jeffrey Walker, D.D.S.,M.S.Frankfort, IL 604231912194572

Common questions

What is Chad Ryan Wiersema, DDS's NPI number?

Chad Ryan Wiersema, DDS's National Provider Identifier (NPI) is 1427114115, issued on Dec 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Chad Ryan Wiersema, DDS located?

The NPPES record lists a practice address at 18130 Halsted St, Homewood, IL, 60430. Phone: (708) 799-2550. Providers update this record themselves, so call before visiting.

How can I verify Chad Ryan Wiersema, DDS's license?

NPPES lists Illinois license number 021002195, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Chad Ryan Wiersema, DDS prescribe under Medicare Part D?

In 2024, Chad Ryan Wiersema, DDS had 422 Medicare Part D claims for 200 beneficiaries; the average among endodontics prescribers was 121. 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.