Shannon McDuff Johnson, MD
NPI 1164048401ActiveIndividual· Internal Medicine· Canton, MI
Internal Medicine (MD) in Canton, Michigan, trained at Louisiana State University School of Medicine in New Orleans (class of 2020). Their prescriptions cost Medicare Part D more than their services did: $172,306 for 1,786 claims, against $18,561 paid for services in 2024.
Overview
| NPI | 1164048401 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 23, 2020 |
| Last updated in NPPES | Aug 22, 2023 |
| Certified by provider | Aug 22, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4301509709 | MI |
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 - Internal Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 127 |
|---|---|
| Services billed | 333 across 17 procedure codes |
| Paid by Medicare | $18,561 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,786 · 3,865 30-day fills |
|---|---|
| Patients | 208 |
| Total drug cost | $172,306 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of MichiganAnn Arbor, MI · 3,346 clinicians
Hospital affiliation
- University of Michigan Health SystemAnn Arbor, MI
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 68 internal medicine physicians in Canton · All internal medicine physicians in Michigan