NPPES file of Aug 9, 2026

Nathan Lee Granneman, M.D.

Occupational Medicine Physician · Columbia, MO

Nathan Lee Granneman, M.D. is an occupational medicine physician with a practice address in Columbia, Missouri, and NPI 1689960171, issued on Jun 22, 2011. Check the license (Missouri 2012023532, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; 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
1689960171
Name
Nathan Lee Granneman
Credential
M.D.
Primary taxonomy
Occupational Medicine Physician 2083X0100X
License number
2012023532 MO
Self-reported in NPPES; status is on the state search
Practice location
401 N Keene St, Columbia, MO 65201
Phone
(573) 876-1600
Enumerated
Jun 22, 2011
Record last updated
Jan 8, 2024
Fax
(573) 876-1606
Medicaid ID
200008322 MO
Medicare enrollment
Enrolled (PECOS I20140306000407); accepts Medicare assignment
Medical or professional school
University Of Missouri, Columbia School Of Medicine, 2011
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 401 N Keene St

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

  1. Kym Armontrout, M. EDCounselor1417422429
  2. Megan Baier, FNP-CFamily Nurse Practitioner1528826922
  3. Anthony Banks, LMSWClinical Social Worker1316561186
  4. Andrew Basnett, M.D.MOHS-Micrographic Surgery Physician1013145234
  5. Sheridan Brown, PA-CPhysician Assistant1770055741
  6. Angelica Ehrhardt, PLPCProfessional Counselor1356925366

Verify Nathan Lee Granneman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
    Search for license 2012023532
    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 Missouri license search

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88% fewer Medicare Part D claims than the average occupational medicine physician in 2024

96 Medicare Part D claims for 42 beneficiaries, against an average of 794 among the 463 providers of this specialty who prescribed in Part D. 53 claims were for opioids.

  1. Nathan Granneman96
  2. Specialty average794

Most prescribed

  1. Hydrocodone-Acetaminophen45 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.

Bills Medicare through one group practice

  1. Boone Physician Services LLCColumbia, MO

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

Nathan Lee Granneman among 56 occupational medicine physician records in Missouri

Nathan Lee Granneman, M.D. is one of 56 occupational medicine physician records with a practice address in Missouri. 21% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 91% of them.

  • NPI issued2011 · 91% of these records are older, 5% newer
  • In a Medicare fileYes · 21% of these records are
  • In the CMS Doctors and Clinicians fileYes · 5% of these records are
  • Record last updated2024 · 91% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083X0100X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Occupational Medicine Physician providers in Missouri

There are 56 occupational medicine physician records in Missouri.

The 8 occupational medicine physician records with the nearest ZIP codes

  1. Michael Szewczyk, M.D.Columbia, MO 652011285765974
  2. Robert Thomas, MDColumbia, MO 652011386829273
  3. James Marzolf, MDColumbia, MO 652021770782245
  4. Osman Amin, DOColumbia, MO 652031457748766
  5. Eddie Runde, M.D.Columbia, MO 652121154440550
  6. Matthew McCall, D.O.Fort Leonard Wood, MO 654731992717169
  7. James Jordan, MDLebanon, MO 655361821179029
  8. Rick Haggard, DONeosho, MO 648501578678058

Common questions

What is Nathan Lee Granneman, M.D.'s NPI number?

Nathan Lee Granneman, M.D.'s National Provider Identifier (NPI) is 1689960171, issued on Jun 22, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Lee Granneman, M.D. located?

The NPPES record lists a practice address at 401 N Keene St, Columbia, MO, 65201. Phone: (573) 876-1600. Providers update this record themselves, so call before visiting.

How can I verify Nathan Lee Granneman, M.D.'s license?

NPPES lists Missouri license number 2012023532, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nathan Lee Granneman, M.D. prescribe under Medicare Part D?

In 2024, Nathan Lee Granneman, M.D. had 96 Medicare Part D claims for 42 beneficiaries; the average among occupational medicine physician prescribers was 794. 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.