Mark Lewis Madder, DMD
Dentist · O Fallon, IL
Mark Lewis Madder, DMD is a dentist with a practice address in O Fallon, Illinois, and NPI 1750398442, issued on Aug 2, 2006. Check the license with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Lewis Madder
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- Practice location
- 1403 S Lincoln, O Fallon, IL 62269
- Phone
- (618) 624-8532
- Enumerated
- Aug 2, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 4,522 in Illinois → Look up another NPI →
Verify Mark Lewis Madder 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
30% fewer Medicare Part D claims than the average dentist in 2024
60 Medicare Part D claims for 33 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin27 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 Lewis Madder among 4,522 dentist records in Illinois
Mark Lewis Madder, 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 81% 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).
12 dentist records list a practice address in O Fallon
They are 12 of the 1,077 NPPES records with a practice address in O Fallon, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in O Fallon → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Gregory Biddulph, DMDO Fallon, IL 622691932237856
- Daisy CornellShiloh, IL 622691619608023
- Lauren Flint, D.M.D.Shiloh, IL 622691669638052
- Gladsy George, DMDO Fallon, IL 622691215627153
- Brittany Gilbreth, D.M.DO Fallon, IL 622691285049825
- John Leib, D.M.D.O Fallon, IL 622691376604678
- Amanda Littlefield, DMDO Fallon, IL 622691821114497
- Caroline Roti, DMDO Fallon, IL 622691245073360
Common questions
What is Mark Lewis Madder, DMD's NPI number?
Mark Lewis Madder, DMD's National Provider Identifier (NPI) is 1750398442, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Lewis Madder, DMD located?
The NPPES record lists a practice address at 1403 S Lincoln, O Fallon, IL, 62269. Phone: (618) 624-8532. Providers update this record themselves, so call before visiting.
How can I verify Mark Lewis Madder, DMD's license?
Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Lewis Madder, DMD prescribe under Medicare Part D?
In 2024, Mark Lewis Madder, DMD had 60 Medicare Part D claims for 33 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.