NPPES file of Aug 9, 2026

Sharon C. Horwitz

General Practice Dentistry · Oak Park, IL

Sharon C. Horwitz is a general practice dentistry with a practice address in Oak Park, Illinois, and NPI 1902969835, issued on Dec 19, 2006. Check the license (Illinois 19026752, 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
1902969835
Name
Sharon C. Horwitz
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
19026752 IL
Self-reported in NPPES; status is on the state search
Practice location
110 N Oak Park Ave, Oak Park, IL 60301
Phone
(708) 386-8070
Enumerated
Dec 19, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
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 110 N Oak Park Ave

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

  1. Marcel Krawczyk, DDSGeneral Practice Dentistry1902957897
  2. Louis Scannicchio, DMDOral and Maxillofacial Pathology Dentistry1205973690

Verify Sharon C. Horwitz 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 19026752
    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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31% fewer Medicare Part D claims than the average general practice dentistry in 2024

57 Medicare Part D claims for 40 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. Sharon Horwitz57
  2. Specialty average83

Most prescribed

  1. 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.

Sharon C. Horwitz among 5,276 general practice dentistry records in Illinois

Sharon C. Horwitz 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 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).

47 general practice dentistry records list a practice address in Oak Park

They are 47 of the 2,307 NPPES records with a practice address in Oak Park, and 5,276 general practice dentistry records in Illinois.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Shafa Amirsoltani, DDSOak Park, IL 603011497759179
  2. Thomas Donahue, D.D.S.Oak Park, IL 603011164411401
  3. Lawrence Fine, D.D.SOak Park, IL 603011366512105
  4. Jimmy Fung, D.D.S.Oak Park, IL 603011447240403
  5. Marcel Krawczyk, DDSOak Park, IL 603011902957897
  6. Nathaniel Lim, DDSOak Park, IL 603011093893273
  7. Kathleen Minaghan, D.D.S.Oak Park, IL 603011609885102
  8. Linda Oster, DDSOak Park, IL 603011851450779

Common questions

What is Sharon C. Horwitz's NPI number?

Sharon C. Horwitz's National Provider Identifier (NPI) is 1902969835, issued on Dec 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Sharon C. Horwitz located?

The NPPES record lists a practice address at 110 N Oak Park Ave, Oak Park, IL, 60301. Phone: (708) 386-8070. Providers update this record themselves, so call before visiting.

How can I verify Sharon C. Horwitz's license?

NPPES lists Illinois license number 19026752, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Sharon C. Horwitz prescribe under Medicare Part D?

In 2024, Sharon C. Horwitz had 57 Medicare Part D claims for 40 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.