Anthony T. Tay, MD
NPI 1669416046ActiveIndividual· Internal Medicine, Rheumatology· Columbia, MO
Internal Medicine, Rheumatology (MD) in Columbia, Missouri, trained at Medical College of Wisconsin (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $3,640,094 for 1,879 claims, against $12,247 paid for services in 2024. Amgen Inc. was the largest of 15 companies reporting payments in 2025, $3,137 in all, mostly food and beverage.
Overview
| NPI | 1669416046 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 15, 2006 |
| Last updated in NPPES | Aug 31, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 2003007573 | 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 - Rheumatology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 126 |
|---|---|
| Services billed | 217 across 9 procedure codes |
| Paid by Medicare | $12,247 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,879 · 3,511 30-day fills |
|---|---|
| Patients | 300 |
| Total drug cost | $3,640,094 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Rheumatology |
Medical group
- Citizens Memorial HealthcareBolivar, MO · 146 clinicians
Hospital affiliation
- Citizens Memorial HospitalBolivar, MO
Industry payments (Open Payments)
- 2025$3,137 · 133 payments from 15 companies
- 2024$3,416 · 159 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $802.75 | 30 |
| Abbvie Inc. | $597.18 | 27 |
| Janssen Biotech, Inc. | $321.90 | 9 |
| Novartis Pharmaceuticals Corporation | $237.96 | 12 |
| Janssen Scientific Affairs, LLC | $221.51 | 3 |
What the 2025 payments were for
- Food and Beverage$3,108 · 130 payments
- Education$29.74 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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