William H. Chen, DMD
Dentist · Granite City, IL
William H. Chen, DMD is a dentist with a practice address in Granite City, Illinois, and NPI 1104948058, issued on Apr 4, 2007. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William H. Chen
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- License number
- 012621 MO
Self-reported in NPPES; status is on the state search - Practice location
- 4168 Nameoki Road, Granite City, IL 62040
- Phone
- (618) 931-2025
- Enumerated
- Apr 4, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (618) 931-8888
- Entity
- Type 1 · individual
8 nearest dentist records → All 4,522 in Illinois → Look up another NPI →
Verify William H. Chen 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
66% more Medicare Part D claims than the average dentist in 2024
143 Medicare Part D claims for 89 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin75 claims
- Clindamycin Hcl29 claims
- Amoxicillin25 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 H. Chen among 4,522 dentist records in Illinois
William H. Chen, DMD is one of 4,522 dentist 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 19% of them.
- NPI issued2007 · 19% of these records are older, 62% 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 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 dentist records list a practice address in Granite City
They are 6 of the 338 NPPES records with a practice address in Granite City, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in Granite City → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Robert Huey, DMDGranite City, IL 620401750734521
- Gary Lindsay, DMDGranite City, IL 620401184719163
- Bill McMasters, DDSGranite City, IL 620401295813517
- Katie Serrano, DMDGranite City, IL 620401922480987
- Albert Trtanj, DDSGranite City, IL 620401245379163
- Donald Hawrysz, D.D.SGreenfield, IL 620441437191442
- Rhonda Green, DMDGodfrey, IL 620351467540906
- Jaxsen Helmkamp, DMDGodfrey, IL 620351437992757
Common questions
What is William H. Chen, DMD's NPI number?
William H. Chen, DMD's National Provider Identifier (NPI) is 1104948058, issued on Apr 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William H. Chen, DMD located?
The NPPES record lists a practice address at 4168 Nameoki Road, Granite City, IL, 62040. Phone: (618) 931-2025. Providers update this record themselves, so call before visiting.
How can I verify William H. Chen, DMD's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does William H. Chen, DMD prescribe under Medicare Part D?
In 2024, William H. Chen, DMD had 143 Medicare Part D claims for 89 beneficiaries; the average among dentist prescribers was 86. 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.