NPPES file of Aug 9, 2026

Gary A. Tapak, D.D.S.

Dentist · Oak Lawn, IL

Gary A. Tapak, D.D.S. is a dentist with a practice address in Oak Lawn, Illinois, and NPI 1902048465, issued on Mar 30, 2009. Check the license (Illinois 019020129, 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
1902048465
Name
Gary A. Tapak
Credential
D.D.S.
Primary taxonomy
Dentist 122300000X
License number
019020129 IL
Self-reported in NPPES; status is on the state search
Practice location
4647 W 103RD St, Oak Lawn, IL 60453
Phone
(708) 424-6737
Enumerated
Mar 30, 2009
Record last updated
Mar 30, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(708) 424-5520
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 4647 W 103RD St

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

  1. Satinder Dalawari, MDInternal Medicine Physician1750449880
  2. Eugene Decker, DDSGeneral Practice Dentistry1366572620
  3. Geoffrey Decker, DMDGeneral Practice Dentistry1497885750
  4. Hala Gomaa, LPTPhysical Therapist1942249305
  5. Hesham Hegazy, LPTPhysical Therapist1336187962
  6. Richard Hrad, D.D.S.Dentist1164422606

Verify Gary A. Tapak 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 019020129
    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% fewer Medicare Part D claims than the average dentist in 2024

83 Medicare Part D claims for 63 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.

  1. Gary Tapak83
  2. Specialty average86

Most prescribed

  1. Penicillin V Potassium36 claims
  2. Amoxicillin21 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.

Gary A. Tapak among 4,522 dentist records in Illinois

Gary A. Tapak, 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 2009, is newer than 46% of them.

  • NPI issued2009 · 46% of these records are older, 50% 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 updated2009 · 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).

41 dentist records list a practice address in Oak Lawn

They are 41 of the 2,993 NPPES records with a practice address in Oak Lawn, and 4,522 dentist records in Illinois.

The 8 dentist records with the nearest ZIP codes

  1. Ghassan Abdallah, DMDOak Lawn, IL 604531720179021
  2. Dennis Dwyer, DDSOak Lawn, IL 604531588784698
  3. John Green, D.D.S.Oak Lawn, IL 604531952425605
  4. Richard Hrad, D.D.S.Oak Lawn, IL 604531164422606
  5. James Javorski, DDSOak Lawn, IL 604531043374242
  6. Simmi Kapur, DDSOak Lawn, IL 604531225109192
  7. Craig Kostrubala, DDSOak Lawn, IL 604531770700536
  8. Terrence Needham, DDSOak Lawn, IL 604531306909593

Common questions

What is Gary A. Tapak, D.D.S.'s NPI number?

Gary A. Tapak, D.D.S.'s National Provider Identifier (NPI) is 1902048465, issued on Mar 30, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Gary A. Tapak, D.D.S. located?

The NPPES record lists a practice address at 4647 W 103RD St, Oak Lawn, IL, 60453. Phone: (708) 424-6737. Providers update this record themselves, so call before visiting.

How can I verify Gary A. Tapak, D.D.S.'s license?

NPPES lists Illinois license number 019020129, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Gary A. Tapak, D.D.S. prescribe under Medicare Part D?

In 2024, Gary A. Tapak, D.D.S. had 83 Medicare Part D claims for 63 beneficiaries; 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.