James Michael Mashni, DDS
General Practice Dentistry · East Lansing, MI
James Michael Mashni, DDS is a general practice dentistry with a practice address in East Lansing, Michigan, and NPI 1427306273, issued on Aug 28, 2012. Check the license (Michigan 2901020812, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James Michael Mashni
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 2901020812 MI
Self-reported in NPPES; status is on the state search - Practice location
- 2121 Abbott RD, East Lansing, MI 48823
- Phone
- (517) 351-1733
- Enumerated
- Aug 28, 2012
- Record last updated
- Nov 13, 2025
- Fax
- (517) 351-5709
- Medicare enrollment
- Enrolled (PECOS I20260421003879); may accept Medicare assignment
- Medical or professional school
- Loma Linda University School Of Dentistry, 2012
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 4,088 in Michigan → Look up another NPI →
Also registered at 2121 Abbott RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stanley Dudek, MDOtolaryngology Physician1962552794
- Daniel Klein, DDSPediatric Dentistry1760523435
Verify James Michael Mashni in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 2901020812Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average general practice dentistry in 2024
76 Medicare Part D claims for 57 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin46 claims
- Cephalexin12 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.
Industry payments in 2024: $78.04
1 payment: food and beverage; the largest payer was Dentsply Sirona Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
James Michael Mashni among 4,088 general practice dentistry records in Michigan
James Michael Mashni, DDS is one of 4,088 general practice dentistry records with a practice address in Michigan. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 72% of them.
- NPI issued2012 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · under 1% of these records are
- Graduated2012 · median 2015 among the 24 with a school on file
- Record last updated2025 · 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 1223G0001X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Dentistry providers in Michigan
There are 4,088 general practice dentistry records in Michigan.
All 4,088 in Michigan → Every provider in East Lansing → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Steven Atkinson, D.D.S.East Lansing, MI 488231093813693
- Sherill Behnke, DDSEast Lansing, MI 488231003974619
- Daniel DerksenEast Lansing, MI 488231275735029
- Scott Dickinson, DDSEast Lansing, MI 488231811003429
- Christine Engstrom, D.D.S.East Lansing, MI 488231750455515
- Thomas Faiver, D.D.S.East Lansing, MI 488231750330205
- David French, DDSEast Lansing, MI 488231497859672
- George Grein, D.D.S.East Lansing, MI 488231811040579
Common questions
What is James Michael Mashni, DDS's NPI number?
James Michael Mashni, DDS's National Provider Identifier (NPI) is 1427306273, issued on Aug 28, 2012. An NPI identifies a provider in billing; it is not a license.
Where is James Michael Mashni, DDS located?
The NPPES record lists a practice address at 2121 Abbott RD, East Lansing, MI, 48823. Phone: (517) 351-1733. Providers update this record themselves, so call before visiting.
How can I verify James Michael Mashni, DDS's license?
NPPES lists Michigan license number 2901020812, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does James Michael Mashni, DDS prescribe under Medicare Part D?
In 2024, James Michael Mashni, DDS had 76 Medicare Part D claims for 57 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.