NPPES file of Aug 9, 2026

William H. Slavin, D.D.S.

General Practice Dentistry · Chicago Heights, IL

William H. Slavin, D.D.S. is a general practice dentistry with a practice address in Chicago Heights, Illinois, and NPI 1801019609, issued on Apr 10, 2007. Check the license (Illinois 19-011551, as entered in NPPES) with the Illinois board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801019609
Name
William H. Slavin
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
19-011551 IL
Self-reported in NPPES; status is on the state search
Practice location
20200 Ashland Ave, Chicago Heights, IL 60411
Phone
(708) 755-1333
Enumerated
Apr 10, 2007
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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8 nearest general practice dentistry records → All 5,276 in Illinois → Look up another NPI →

Also registered at 20200 Ashland Ave

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

  1. Donald MillerGeneral Practice Dentistry1891917183
  2. William Misischia, D.D.S.General Practice Dentistry1619199973
  3. Joseph Noetzel, D.D.S.General Practice Dentistry1902028707
  4. Robert Noetzel, DDSOrthodontics and Dentofacial Orthopedics Dentistry1093874067
  5. Walter Stanford, D.D.S.General Practice Dentistry1326163718

Verify William H. Slavin 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 19-011551    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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William H. Slavin among 5,276 general practice dentistry records in Illinois

William H. Slavin, 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 not. Its NPI, issued in 2007, is newer than 32% of them.

  • NPI issued2007 · 32% of these records are older, 43% newer
  • In a Medicare fileNo · 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).

29 general practice dentistry records list a practice address in Chicago Heights

They are 29 of the 346 NPPES records with a practice address in Chicago Heights, and 5,276 general practice dentistry records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 5,276 in Illinois → Every provider in Chicago Heights → General Practice Dentistry nationwide →

The 8 general practice dentistry records with the nearest ZIP codes

  1. Mohammad Al-Asadi, DDS, FAGDChicago Heights, IL 604111396759593
  2. Ronald Benedetti, DDSChicago Heights, IL 604111326156837
  3. Michelle Brown, D.D.S.Chicago Heights, IL 604111366504078
  4. Roberto De Paz, DDSChicago Heights, IL 604111730117409
  5. Michael Fagan, DDSChicago Heights, IL 604111396817045
  6. Tammy Giannetta, D.D.S.Chicago Heights, IL 604111548392897
  7. Joseph Noetzel, D.D.S.Chicago Heights, IL 604111902028707
  8. Ilenne Noetzel, D.D.SChicago Heights, IL 604111073735932

Common questions

What is William H. Slavin, D.D.S.'s NPI number?

William H. Slavin, D.D.S.'s National Provider Identifier (NPI) is 1801019609, issued on Apr 10, 2007. An NPI identifies a provider in billing; it is not a license.

Where is William H. Slavin, D.D.S. located?

The NPPES record lists a practice address at 20200 Ashland Ave, Chicago Heights, IL, 60411. Phone: (708) 755-1333. Providers update this record themselves, so call before visiting.

How can I verify William H. Slavin, D.D.S.'s license?

NPPES lists Illinois license number 19-011551, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.