Mark Szierer, DDS
Dentist · Flemington, NJ
Mark Szierer, DDS is a dentist with a practice address in Flemington, New Jersey, and NPI 1013133545, issued on Apr 17, 2007. Check the license (New Jersey 22D102117000, as entered in NPPES) with the New Jersey board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mark Szierer
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- 22D102117000 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 85 Reaville Ave., Flemington, NJ 08822
- Phone
- (908) 806-4333
- Enumerated
- Apr 17, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (908) 806-2024
- Entity
- Type 1 · individual
8 nearest dentist records → All 2,742 in New Jersey → Look up another NPI →
Verify Mark Szierer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
Search for license 22D102117000Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average dentist in 2024
104 Medicare Part D claims for 48 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.
Most prescribed
- Chlorhexidine Gluconate35 claims
- Amoxicillin32 claims
- Azithromycin14 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 Szierer among 2,742 dentist records in New Jersey
Mark Szierer, DDS is one of 2,742 dentist records with a practice address in New Jersey. 63% 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, 56% newer
- In a Medicare fileYes · 63% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dentist providers in New Jersey
There are 2,742 dentist records in New Jersey.
All 2,742 in New Jersey → Every provider in Flemington → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Curtis Adams, DMDFlemington, NJ 088221487829594
- Martin Adams, DDSFlemington, NJ 088221164689352
- Nancy ChenFlemington, NJ 088221871848937
- Peter Costas, DMDFlemington, NJ 088221205822129
- Fabiola Cuba Valencia, DMDFlemington, NJ 088221033963285
- Brian Falk, D.D.S.Flemington, NJ 088221063901916
- William Kraus, DMDFlemington, NJ 088221083831432
- Michael Leyferman, D.M.D.Flemington, NJ 088221659312445
Common questions
What is Mark Szierer, DDS's NPI number?
Mark Szierer, DDS's National Provider Identifier (NPI) is 1013133545, issued on Apr 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Szierer, DDS located?
The NPPES record lists a practice address at 85 Reaville Ave., Flemington, NJ, 08822. Phone: (908) 806-4333. Providers update this record themselves, so call before visiting.
How can I verify Mark Szierer, DDS's license?
NPPES lists New Jersey license number 22D102117000, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.
How much does Mark Szierer, DDS prescribe under Medicare Part D?
In 2024, Mark Szierer, DDS had 104 Medicare Part D claims for 48 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.