NPPES file of Aug 9, 2026

Nathan A. Day, DMD

Dentist · Lansing, MI

Nathan A. Day, DMD is a dentist with a practice address in Lansing, Michigan, and NPI 1689811358, issued on Jan 16, 2009. Check the license (Michigan 2901019455, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689811358
Name
Nathan A. Day
Credential
DMD
Primary taxonomy
Dentist 122300000X
License number
2901019455 MI
Self-reported in NPPES; status is on the state search
Practice location
2500 E Jolly RD, Lansing, MI 48910
Phone
(517) 393-8500
Enumerated
Jan 16, 2009
Record last updated
Jan 16, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(517) 393-8596
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Nathan A. Day in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Michigan board licenses this profession
    Search for license 2901019455
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Michigan license search

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52% fewer Medicare Part D claims than the average dentist in 2024

41 Medicare Part D claims for 34 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.

  1. Nathan Day41
  2. Specialty average86

Most prescribed

  1. Amoxicillin28 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.

Nathan A. Day among 3,439 dentist records in Michigan

Nathan A. Day, DMD is one of 3,439 dentist records with a practice address in Michigan. 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 2009, is newer than 48% of them.

  • NPI issued2009 · 48% of these records are older, 51% 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 updated2009 · 64% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

56 dentist records list a practice address in Lansing

They are 56 of the 5,276 NPPES records with a practice address in Lansing, and 3,439 dentist records in Michigan.

The 8 dentist records with the nearest ZIP codes

  1. Gamal Abosamra, DDSLansing, MI 489101922285055
  2. Seungho Baek, DDSLansing, MI 489101134254428
  3. Jeffrey Blackburn, DDSLansing, MI 489101063570679
  4. Roger Cheney, DDSLansing, MI 489101336106749
  5. Marisa Hart, DDSLansing, MI 489101457467839
  6. Gerald Hause, DDSLansing, MI 489101346300175
  7. Richard Jankowski, DSSLansing, MI 489101528024320
  8. Sheridan Kelley, DDSLansing, MI 489101386174753

Common questions

What is Nathan A. Day, DMD's NPI number?

Nathan A. Day, DMD's National Provider Identifier (NPI) is 1689811358, issued on Jan 16, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Nathan A. Day, DMD located?

The NPPES record lists a practice address at 2500 E Jolly RD, Lansing, MI, 48910. Phone: (517) 393-8500. Providers update this record themselves, so call before visiting.

How can I verify Nathan A. Day, DMD's license?

NPPES lists Michigan license number 2901019455, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.

How much does Nathan A. Day, DMD prescribe under Medicare Part D?

In 2024, Nathan A. Day, DMD had 41 Medicare Part D claims for 34 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.