William Errol Dewitt, DDS
General Practice Dentistry · Elmhurst, IL
William Errol Dewitt, DDS is a general practice dentistry with a practice address in Elmhurst, Illinois, and NPI 1710015086, issued on Mar 1, 2007. Check the license (Illinois 019-16307, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Errol Dewitt
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 019-16307 IL
Self-reported in NPPES; status is on the state search - Practice location
- 118 E Vallette St, Elmhurst, IL 60126
- Phone
- (630) 279-2121
- Enumerated
- Mar 1, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (630) 279-1363
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 5,276 in Illinois → Look up another NPI →
Verify William Errol Dewitt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 019-16307Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average general practice dentistry in 2024
34 Medicare Part D claims for 19 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin13 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.
William Errol Dewitt among 5,276 general practice dentistry records in Illinois
William Errol Dewitt, DDS 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 2007, is newer than 32% of them.
- NPI issued2007 · 32% of these records are older, 43% 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).
39 general practice dentistry records list a practice address in Elmhurst
They are 39 of the 1,540 NPPES records with a practice address in Elmhurst, and 5,276 general practice dentistry records in Illinois.
All 5,276 in Illinois → Every provider in Elmhurst → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Steven Erickson, D.D.S.Elmhurst, IL 601261174690812
- Daniel Fornatto, D.D.S.Elmhurst, IL 601261447213459
- Philip Gotsch, D.D.S.Elmhurst, IL 601261609884352
- Victoria Grannan-Manchen, D.D.S.Elmhurst, IL 601261124132279
- Lawrence Groh, DDSElmhurst, IL 601261639236334
- Kavita Gupta, DDSElmhurst, IL 601261194894626
- Michael Higgins, DDSElmhurst, IL 601261487740353
- James Los, D.D.S.Elmhurst, IL 601261457425472
Common questions
What is William Errol Dewitt, DDS's NPI number?
William Errol Dewitt, DDS's National Provider Identifier (NPI) is 1710015086, issued on Mar 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Errol Dewitt, DDS located?
The NPPES record lists a practice address at 118 E Vallette St, Elmhurst, IL, 60126. Phone: (630) 279-2121. Providers update this record themselves, so call before visiting.
How can I verify William Errol Dewitt, DDS's license?
NPPES lists Illinois license number 019-16307, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does William Errol Dewitt, DDS prescribe under Medicare Part D?
In 2024, William Errol Dewitt, DDS had 34 Medicare Part D claims for 19 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.