NPPES file of Aug 9, 2026

Gregory Joseph Olenick, D.D.S.

General Practice Dentistry · Wheaton, IL

Gregory Joseph Olenick, D.D.S. is a general practice dentistry with a practice address in Wheaton, Illinois, and NPI 1275685224, issued on Jan 18, 2007. Check the license (Illinois 19014375, 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
1275685224
Name
Gregory Joseph Olenick
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
19014375 IL
Self-reported in NPPES; status is on the state search
Practice location
1275 Butterfield RD, Wheaton, IL 60187
Phone
(630) 653-1377
Enumerated
Jan 18, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(630) 653-7935
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 →

Verify Gregory Joseph Olenick 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 19014375    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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75% fewer Medicare Part D claims than the average general practice dentistry in 2024

21 Medicare Part D claims for 20 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. Gregory Olenick21
  2. Specialty average83

Most prescribed

  1. Amoxicillin15 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.

Gregory Joseph Olenick among 5,276 general practice dentistry records in Illinois

Gregory Joseph Olenick, D.D.S. 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 2007, is newer than 32% of them.

  • NPI issued2007 · 32% of these records are older, 43% 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 updated2007 · 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).

45 general practice dentistry records list a practice address in Wheaton

They are 45 of the 2,468 NPPES records with a practice address in Wheaton, and 5,276 general practice dentistry records in Illinois.

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

The 8 general practice dentistry records with the nearest ZIP codes

  1. Mark Barnes, DDSWheaton, IL 601871427072792
  2. Dennis Beck, D.D.S.Wheaton, IL 601871558443044
  3. Diana Brawka, DDSWheaton, IL 601871770652794
  4. Gregory Calleia, DDSWheaton, IL 601871134144371
  5. David Carlson, D.D.S.Wheaton, IL 601871134133226
  6. Vincent Conforti, DDSWheaton, IL 601871992895387
  7. Donald Dale, DDSWheaton, IL 601871669541363
  8. Laurence Golden, DDS MSDWheaton, IL 601871962588400

Common questions

What is Gregory Joseph Olenick, D.D.S.'s NPI number?

Gregory Joseph Olenick, D.D.S.'s National Provider Identifier (NPI) is 1275685224, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Joseph Olenick, D.D.S. located?

The NPPES record lists a practice address at 1275 Butterfield RD, Wheaton, IL, 60187. Phone: (630) 653-1377. Providers update this record themselves, so call before visiting.

How can I verify Gregory Joseph Olenick, D.D.S.'s license?

NPPES lists Illinois license number 19014375, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Gregory Joseph Olenick, D.D.S. prescribe under Medicare Part D?

In 2024, Gregory Joseph Olenick, D.D.S. had 21 Medicare Part D claims for 20 beneficiaries; 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.