Tracy M. Riordan, M.D.
NPI 1124094362ActiveIndividual· Internal Medicine· Imperial, MO
Internal Medicine (M.D.) in Imperial, Missouri, trained at Saint Louis University School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $591,628 for 7,676 claims, against $38,432 paid for services in 2024. Abbvie Inc. was the largest of 11 companies reporting payments in 2025, $653.63 in all, mostly food and beverage.
Overview
| NPI | 1124094362 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 27, 2006 |
| Last updated in NPPES | Sep 20, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2002013047 | 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 - Internal Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 175 |
|---|---|
| Services billed | 809 across 43 procedure codes |
| Paid by Medicare | $38,432 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,676 · 19,601 30-day fills |
|---|---|
| Patients | 593 |
| Total drug cost | $591,628 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Internal Medicine |
Medical group
- Mercy Clinic East CommunitiesSaint Louis, MO · 571 clinicians
Hospital affiliations
- Mercy Hospital JeffersonCrystal City, MO
- Mercy Hospital SouthSaint Louis, MO
- Mercy Hospital St LouisSaint Louis, MO
Industry payments (Open Payments)
- 2025$653.63 · 39 payments from 11 companies
- 2024$891.95 · 55 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $238.18 | 18 |
| Pfizer Inc. | $93.89 | 4 |
| Novo Nordisk Inc | $73.76 | 4 |
| Astrazeneca Pharmaceuticals LP | $67.28 | 4 |
| Exact Sciences Corporation | $58.81 | 3 |
What the 2025 payments were for
- Food and Beverage$653.63 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Imperial
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- 1861403628