Joshua Casey Mayer, D.O.
NPI 1679837322ActiveIndividual· Internal Medicine· Saint Louis, MO
Internal Medicine (D.O.) in Saint Louis, Missouri, trained at Kansas City University of Physicians and Surgeons (class of 2012). In 2024 Medicare paid $18,989 for 94 patients, and Part D covered 69 of their prescriptions, 75% of them generic. Distalmotion US reported $53.64 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1679837322 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 27, 2012 |
| Last updated in NPPES | Feb 12, 2021 |
| Certified by provider | Jan 25, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2018014496 | MO |
| Hospitalist | 208M00000X | 2018014496 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hospitalist (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 94 |
|---|---|
| Services billed | 245 across 10 procedure codes |
| Paid by Medicare | $18,989 |
Part D prescriptions in 2024
| Prescriptions (claims) | 69 · 92 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $10,961 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | Kansas City University of Physicians and Surgeons |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Hospitalist |
Medical group
- Ssm Health Care GroupSaint Louis, MO · 940 clinicians
Hospital affiliation
- Ssm Health Saint Louis University HospitalSaint Louis, MO
Industry payments (Open Payments)
- 2025$53.64 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Distalmotion US | $53.64 | 2 |
What the 2025 payments were for
- Food and Beverage$53.64 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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