Mark Thomas Hewlett, D.M.D.
General Practice Dentistry · Granite City, IL
Mark Thomas Hewlett, D.M.D. is a general practice dentistry with a practice address in Granite City, Illinois, and NPI 1710955968, issued on Mar 12, 2006. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Thomas Hewlett
- Credential
- D.M.D.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- Practice location
- 2101 Pontoon RD, Granite City, IL 62040
- Phone
- (618) 797-9877
- Enumerated
- Mar 12, 2006
- Record last updated
- Mar 20, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 5,276 in Illinois → Look up another NPI →
Verify Mark Thomas Hewlett 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
75% more Medicare Part D claims than the average general practice dentistry in 2024
145 Medicare Part D claims for 81 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin103 claims
- Amoxicillin-Clavulanate Potass14 claims
- Clindamycin Hcl12 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.
Mark Thomas Hewlett among 5,276 general practice dentistry records in Illinois
Mark Thomas Hewlett, D.M.D. 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 updated2008 · 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).
13 general practice dentistry records list a practice address in Granite City
They are 13 of the 338 NPPES records with a practice address in Granite City, and 5,276 general practice dentistry records in Illinois.
All 5,276 in Illinois → Every provider in Granite City → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Stephen Anderson, D.D,S,Granite City, IL 620401396815932
- Stephen ConwayGranite City, IL 620401821429747
- David Diak, DMDGranite City, IL 620401134234636
- David Dombek, D.M.D.Granite City, IL 620401932294212
- Jan Mehelic, DMDGranite City, IL 620401447331129
- Stacy Moody, DMDGranite City, IL 620401700984317
- Roger Mueller, D.M.D.Granite City, IL 620401982769964
- Victor Pinones, D.M.DGranite City, IL 620401952651697
Common questions
What is Mark Thomas Hewlett, D.M.D.'s NPI number?
Mark Thomas Hewlett, D.M.D.'s National Provider Identifier (NPI) is 1710955968, issued on Mar 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Thomas Hewlett, D.M.D. located?
The NPPES record lists a practice address at 2101 Pontoon RD, Granite City, IL, 62040. Phone: (618) 797-9877. Providers update this record themselves, so call before visiting.
How can I verify Mark Thomas Hewlett, D.M.D.'s license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Thomas Hewlett, D.M.D. prescribe under Medicare Part D?
In 2024, Mark Thomas Hewlett, D.M.D. had 145 Medicare Part D claims for 81 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.