NPPES file of Aug 9, 2026

Nathan Joseph Landesman, D.O.

Gastroenterology Physician · Grand Blanc, MI

Nathan Joseph Landesman, D.O. is a gastroenterology physician with a practice address in Grand Blanc, Michigan, and NPI 1457397143, issued on Jun 21, 2006. Check the license (Michigan 5101015229, as entered in NPPES) on the Michigan Board of Medicine (LARA); 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
1457397143
Name
Nathan Joseph Landesman
Credential
D.O.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
5101015229 MI
Self-reported in NPPES; status is on the state search
Practice location
600 Health Park Blvd Ste D, Grand Blanc, MI 48439
Phone
(810) 603-8400
Enumerated
Jun 21, 2006
Record last updated
Feb 16, 2024
Fax
(810) 603-8410
Medicare enrollment
Enrolled (PECOS I20061206000563); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Osteopathic Medicine, 2002
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 600 Health Park Blvd Ste D

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Melissa Baker, NPFamily Nurse Practitioner1598451197
  2. Derek Thigpin, DOGastroenterology Physician1265691380

Verify Nathan Joseph Landesman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 5101015229
    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
Open the Michigan license search

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27% more Medicare Part D claims than the average gastroenterology physician in 2024

1,030 Medicare Part D claims for 470 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.

  1. Nathan Landesman1,030
  2. Specialty average811

Most prescribed

  1. Peg 3350-Electrolyte230 claims
  2. Omeprazole191 claims
  3. Mesalamine66 claims
  4. Sod Sulf-Potass Sulf-Mag Sulf41 claims
  5. Gavilyte-G35 claims
  6. Famotidine34 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: $798.06

46 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nathan Landesman$798.06
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Flint Gastroenterology Associates PCGrand Blanc, MI
  2. Henry Ford Health Genesys HospitalFlint, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nathan Joseph Landesman among 550 gastroenterology physician records in Michigan

Nathan Joseph Landesman, D.O. is one of 550 gastroenterology physician records with a practice address in Michigan. 85% 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 13% of them.

  • NPI issued2006 · 13% of these records are older, 50% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2002 · median 2003 among the 415 with a school on file
  • Record last updated2024 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Michigan

There are 550 gastroenterology physician records in Michigan.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. John Macksood, D.O.Grand Blanc, MI 484391952387797
  2. Justin Miller, D.O.Grand Blanc, MI 484391104879493
  3. Mark Minaudo, DOGrand Blanc, MI 484391942239819
  4. Michael Neumann, D.O.Grand Blanc, MI 484391578549325
  5. Richard Smith, D.O.Grand Blanc, MI 484391750367504
  6. Jeffrey SobeckiGrand Blanc, MI 484391245779099
  7. Derek Thigpin, DOGrand Blanc, MI 484391265691380
  8. Brandon Wiggins, DO, MPHGrand Blanc, MI 484391689238693

Common questions

What is Nathan Joseph Landesman, D.O.'s NPI number?

Nathan Joseph Landesman, D.O.'s National Provider Identifier (NPI) is 1457397143, issued on Jun 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Joseph Landesman, D.O. located?

The NPPES record lists a practice address at 600 Health Park Blvd Ste D, Grand Blanc, MI, 48439. Phone: (810) 603-8400. Providers update this record themselves, so call before visiting.

How can I verify Nathan Joseph Landesman, D.O.'s license?

NPPES lists Michigan license number 5101015229, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nathan Joseph Landesman, D.O. prescribe under Medicare Part D?

In 2024, Nathan Joseph Landesman, D.O. had 1,030 Medicare Part D claims for 470 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.