John P. Caster, MD
NPI 1902849854ActiveIndividual· Internal Medicine· Springfield, MO
Internal Medicine (MD) in Springfield, Missouri, trained at Saint Louis University School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $862,970 for 11,337 claims, against $141,815 paid for services in 2024. Abbott Laboratories was the largest of 9 companies reporting payments in 2025, $1,105 in all, mostly food and beverage.
Overview
| NPI | 1902849854 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 14, 2006 |
| Last updated in NPPES | Mar 2, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 108915 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 344 |
|---|---|
| Services billed | 5,128 across 94 procedure codes |
| Paid by Medicare | $141,815 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,337 · 24,016 30-day fills |
|---|---|
| Patients | 654 |
| Total drug cost | $862,970 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Saint Louis University School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
Hospital affiliations
- Cox Medical Center BransonBranson, MO
- Cox Medical CentersSpringfield, MO
Other facilities
- Phoenix Home Care and HospiceHome health agency · Springfield, MO
Industry payments (Open Payments)
- 2025$1,105 · 68 payments from 9 companies
- 2024$1,981 · 124 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $216.33 | 9 |
| Astrazeneca Pharmaceuticals LP | $168.41 | 12 |
| Novo Nordisk Inc | $161.01 | 10 |
| Lilly USA, LLC | $157.74 | 11 |
| Pfizer Inc. | $153.02 | 13 |
What the 2025 payments were for
- Food and Beverage$1,105 · 68 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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