Registry data as of Aug 27, 2026

John O'Connell, DDS

General Practice Dentistry · Hinsdale, IL

John O'Connell, DDS is a general practice dentistry with a practice address in Hinsdale, Illinois, and NPI 1184638769, issued on Jul 28, 2006. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1184638769
Name
John O'Connell
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
Practice location
930 N York RD, Hinsdale, IL 60521
Phone
(630) 455-1666
Enumerated
Jul 28, 2006
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 930 N York RD

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

  1. Shawna Zsinko, D.C.Chiropractor1093952376

Verify John O'Connell in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck 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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PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

19% fewer Medicare Part D claims than the average general practice dentistry in 2024

68 Medicare Part D claims, against an average of 84 among the 68,591 providers of this specialty who prescribed in Part D.

  1. John O'Connell68
  2. Specialty average84

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.

23 general practice dentistry records list a Hinsdale practice address

They are 23 of the 1,290 NPPES records with a Hinsdale practice address, and 5,203 general practice dentistry records in Illinois.

Other general practice dentistry records in Illinois

  1. Kelli Aaby, DDSLoves Park, IL1508090481
  2. Khadija Aamir Sulemanjee, DMDSkokie, IL1205493269
  3. Mohammad Abbas, DDSNorthlake, IL1013975531
  4. Abdullah Abd EssamadChicago, IL1528848066
  5. Samer Abdallah, DDSPalatine, IL1487092706
  6. Dana Abdeddin, DDSPalos Heights, IL1083442768
  7. Hossam AbdelsalamElgin, IL1184248213
  8. Naser Abdelsalam, DMDChicago, IL1528740875
  9. Tawfik Abdul DayemNaperville, IL1003536269
  10. Osaamah Abdulla, DMDBlue Island, IL1083407886

Common questions

What is John O'Connell, DDS's NPI number?

John O'Connell, DDS's National Provider Identifier (NPI) is 1184638769, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John O'Connell, DDS located?

The NPPES record lists a practice address at 930 N York RD, Hinsdale, IL, 60521. Phone: (630) 455-1666. Providers update this record themselves, so call before visiting.

How can I verify John O'Connell, DDS's license?

Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does John O'Connell, DDS prescribe under Medicare Part D?

In 2024, John O'Connell, DDS had 68 Medicare Part D claims; the average among general practice dentistry prescribers was 84. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.