Mark Alan Sitzman, DDS
Dentist · Evansville, IN
Mark Alan Sitzman, DDS is a dentist with a practice address in Evansville, Indiana, and NPI 1124126693, issued on Sep 20, 2006. Check the license (Indiana 12009686A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Alan Sitzman
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 12009686A IN
Self-reported in NPPES; status is on the state search - Practice location
- 320 W Buena Vista Road, Evansville, IN 47710
- Phone
- (812) 423-6662
- Enumerated
- Sep 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (812) 423-9980
- Entity
- Type 1 · individual
8 nearest dentist records → All 1,582 in Indiana → Look up another NPI →
Also registered at 320 W Buena Vista Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Wolf, DDSDentist1437257904
Verify Mark Alan Sitzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 12009686ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average dentist in 2024
247 Medicare Part D claims for 129 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
- Amoxicillin93 claims
- Penicillin V Potassium57 claims
- Cephalexin37 claims
- Clindamycin Hcl18 claims
- Methylprednisolone18 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 Alan Sitzman among 1,582 dentist records in Indiana
Mark Alan Sitzman, DDS is one of 1,582 dentist records with a practice address in Indiana. 66% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 78% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 70% 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 Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
52 dentist records list a practice address in Evansville
They are 52 of the 4,352 NPPES records with a practice address in Evansville, and 1,582 dentist records in Indiana.
All 1,582 in Indiana → Every provider in Evansville → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Dagmar Colon, D.D.SEvansville, IN 477101457469611
- John Diekmann, DDSEvansville, IN 477101164594545
- Kathleen Foster, DDSEvansville, IN 477101275756785
- Adam Frounfelter, D.D.SEvansville, IN 477101053630194
- Allison Frounfelter, D.D.S.Evansville, IN 477101710271499
- Christopher Nigh, DDSEvansville, IN 477101124268040
- Nicole RahmingEvansville, IN 477101427600105
- Lauren Stone, DMDEvansville, IN 477101083028476
Common questions
What is Mark Alan Sitzman, DDS's NPI number?
Mark Alan Sitzman, DDS's National Provider Identifier (NPI) is 1124126693, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Alan Sitzman, DDS located?
The NPPES record lists a practice address at 320 W Buena Vista Road, Evansville, IN, 47710. Phone: (812) 423-6662. Providers update this record themselves, so call before visiting.
How can I verify Mark Alan Sitzman, DDS's license?
NPPES lists Indiana license number 12009686A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Alan Sitzman, DDS prescribe under Medicare Part D?
In 2024, Mark Alan Sitzman, DDS had 247 Medicare Part D claims for 129 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.