John Thomas Day, D.D.S.
General Practice Dentistry · Lansing, MI
John Thomas Day, D.D.S. is a general practice dentistry with a practice address in Lansing, Michigan, and NPI 1215965512, issued on Jun 28, 2006. Check the license (Michigan 2901014838, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Thomas Day
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 2901014838 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1801 E Saginaw St, Lansing, MI 48912
- Phone
- (517) 484-3310
- Enumerated
- Jun 28, 2006
- Record last updated
- Jul 22, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 4,088 in Michigan → Look up another NPI →
Also registered at 1801 E Saginaw St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Bellingham, PH.D.Counseling Psychologist1083760326
- Barbara Culton, LMSWClinical Social Worker1801947080
- Larry Stone, D.D.S.General Practice Dentistry1417172040
- Scott Stone, D.D.S.General Practice Dentistry1306061940
Verify John Thomas Day in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 2901014838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% more Medicare Part D claims than the average general practice dentistry in 2024
113 Medicare Part D claims for 75 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin59 claims
- Azithromycin17 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.
John Thomas Day among 4,088 general practice dentistry records in Michigan
John Thomas Day, D.D.S. 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 63% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2008 · 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).
85 general practice dentistry records list a practice address in Lansing
They are 85 of the 5,276 NPPES records with a practice address in Lansing, and 4,088 general practice dentistry records in Michigan.
All 4,088 in Michigan → Every provider in Lansing → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- John Anderson, D.D.S.Lansing, MI 489121427133867
- Spencer Barnes, D.D.S.Lansing, MI 489121215150842
- Robert Bettman, DDSLansing, MI 489121023171956
- Tracey Epley, D.M.D.Lansing, MI 489121770704702
- James Gallagher, DDSLansing, MI 489121184750200
- Pritoj Gill, DDSLansing, MI 489121073507885
- Douglas Hinterman, DDSLansing, MI 489121629106646
- Edward Husbeck, D.D.S.Lansing, MI 489121386793685
Common questions
What is John Thomas Day, D.D.S.'s NPI number?
John Thomas Day, D.D.S.'s National Provider Identifier (NPI) is 1215965512, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas Day, D.D.S. located?
The NPPES record lists a practice address at 1801 E Saginaw St, Lansing, MI, 48912. Phone: (517) 484-3310. Providers update this record themselves, so call before visiting.
How can I verify John Thomas Day, D.D.S.'s license?
NPPES lists Michigan license number 2901014838, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does John Thomas Day, D.D.S. prescribe under Medicare Part D?
In 2024, John Thomas Day, D.D.S. had 113 Medicare Part D claims for 75 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.