Nathan Lee Granneman, M.D.
NPI 1689960171ActiveIndividual· Preventive Medicine, Occupational Medicine· Columbia, MO
Preventive Medicine, Occupational Medicine (M.D.) in Columbia, Missouri, trained at University of Missouri, Columbia School of Medicine (class of 2011). 36 Medicare patients in 2024, $3,514 paid; nearly all of their 96 Part D prescriptions were generic (95%). Astrazeneca Pharmaceuticals LP reported $123.09 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1689960171 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 22, 2011 |
| Last updated in NPPES | Jan 8, 2024 |
| Certified by provider | Jan 8, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Preventive Medicine, Occupational Medicine Primary | 2083X0100X | 2012023532 | MO |
| Family Medicine, Sports Medicine | 207QS0010X | 2012023532 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Emergency Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 36 |
|---|---|
| Services billed | 52 across 14 procedure codes |
| Paid by Medicare | $3,514 |
Part D prescriptions in 2024
| Prescriptions (claims) | 96 · 102 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $2,077 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 2011 |
| Medicare specialty | Emergency Medicine |
| Secondary specialties | Family Practice, Sports Medicine |
Medical group
- Boone Physician Services LLCColumbia, MO · 250 clinicians
Hospital affiliation
- Boone Hospital CenterColumbia, MO
Industry payments (Open Payments)
- 2025$123.09 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $123.09 | 1 |
What the 2025 payments were for
- Food and Beverage$123.09 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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