John Zaffer, D.D.S.
General Practice Dentistry · Glen Ellyn, IL
John Zaffer, D.D.S. is a general practice dentistry with a practice address in Glen Ellyn, Illinois, and NPI 1982875340, issued on Mar 13, 2008. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Zaffer
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- Practice location
- 526 Crescent Blvd, Glen Ellyn, IL 60137
- Phone
- (630) 469-1006
- Enumerated
- Mar 13, 2008
- Entity
- Type 1 · individual
Also registered at 526 Crescent Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Zaffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
73% fewer Medicare Part D claims than the average general practice dentistry in 2024
23 Medicare Part D claims for 18 beneficiaries, against an average of 84 among the 68,591 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin17 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.
28 general practice dentistry records list a Glen Ellyn practice address
They are 28 of the 684 NPPES records with a Glen Ellyn practice address, and 5,203 general practice dentistry records in Illinois.
All 28 in Glen Ellyn → All 5,203 in Illinois → Every provider in Glen Ellyn →
Other general practice dentistry records in Illinois
- Kelli Aaby, DDSLoves Park, IL1508090481
- Khadija Aamir Sulemanjee, DMDSkokie, IL1205493269
- Mohammad Abbas, DDSNorthlake, IL1013975531
- Abdullah Abd EssamadChicago, IL1528848066
- Samer Abdallah, DDSPalatine, IL1487092706
- Dana Abdeddin, DDSPalos Heights, IL1083442768
- Hossam AbdelsalamElgin, IL1184248213
- Naser Abdelsalam, DMDChicago, IL1528740875
- Tawfik Abdul DayemNaperville, IL1003536269
- Osaamah Abdulla, DMDBlue Island, IL1083407886
Common questions
What is John Zaffer, D.D.S.'s NPI number?
John Zaffer, D.D.S.'s National Provider Identifier (NPI) is 1982875340, issued on Mar 13, 2008. An NPI identifies a provider in billing; it is not a license.
Where is John Zaffer, D.D.S. located?
The NPPES record lists a practice address at 526 Crescent Blvd, Glen Ellyn, IL, 60137. Phone: (630) 469-1006. Providers update this record themselves, so call before visiting.
How can I verify John Zaffer, D.D.S.'s license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does John Zaffer, D.D.S. prescribe under Medicare Part D?
In 2024, John Zaffer, D.D.S. had 23 Medicare Part D claims for 18 beneficiaries; 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.