NPPES file of Aug 9, 2026

Joseph Anthony Haselhorst, D.D.S.

General Practice Dentistry · Naperville, IL

Joseph Anthony Haselhorst, D.D.S. is a general practice dentistry with a practice address in Naperville, Illinois, and NPI 1801901160, issued on Aug 20, 2006. Check the license (Illinois 019-019168, 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
1801901160
Name
Joseph Anthony Haselhorst
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
019-019168 IL
Self-reported in NPPES; status is on the state search
Practice location
507 S Main St, Naperville, IL 60540
Phone
(630) 420-0013
Enumerated
Aug 20, 2006
Record last updated
Aug 3, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicaid ID
081-84-0318 IL
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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Verify Joseph Anthony Haselhorst 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 019-019168
    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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72% more Medicare Part D claims than the average general practice dentistry in 2024

143 Medicare Part D claims for 54 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Joseph Haselhorst143
  2. Specialty average83

Most prescribed

  1. Penicillin V Potassium58 claims
  2. Chlorhexidine Gluconate51 claims
  3. Clindamycin Hcl19 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.

Joseph Anthony Haselhorst among 5,276 general practice dentistry records in Illinois

Joseph Anthony Haselhorst, 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 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 68% 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 updated2010 · 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).

98 general practice dentistry records list a practice address in Naperville

They are 98 of the 4,634 NPPES records with a practice address in Naperville, and 5,276 general practice dentistry records in Illinois.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Michael Bond, D.D.S.Naperville, IL 605401366513145
  2. Arnold Deangelis, DDSNaperville, IL 605401689710972
  3. Maria Defilippis, DDSNaperville, IL 605401982708053
  4. Karen Hembrough, D.D.S.Naperville, IL 605401447326988
  5. John Irving, DDSNaperville, IL 605401942371166
  6. John Jaeschke, DDSNaperville, IL 605401194891945
  7. Dennis Johnson, D.D.S.Naperville, IL 605401063553659
  8. James Lulinski, DDSNoperville, IL 605401720143100

Common questions

What is Joseph Anthony Haselhorst, D.D.S.'s NPI number?

Joseph Anthony Haselhorst, D.D.S.'s National Provider Identifier (NPI) is 1801901160, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Anthony Haselhorst, D.D.S. located?

The NPPES record lists a practice address at 507 S Main St, Naperville, IL, 60540. Phone: (630) 420-0013. Providers update this record themselves, so call before visiting.

How can I verify Joseph Anthony Haselhorst, D.D.S.'s license?

NPPES lists Illinois license number 019-019168, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Joseph Anthony Haselhorst, D.D.S. prescribe under Medicare Part D?

In 2024, Joseph Anthony Haselhorst, D.D.S. had 143 Medicare Part D claims for 54 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.

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.