John E. Vernon, MD
NPI 1891793105ActiveIndividual· Internal Medicine· Saint Louis, MO
Internal Medicine (MD) in Saint Louis, Missouri, trained at University of Missouri, Columbia School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $1,186,871 for 12,006 claims, against $71,318 paid for services in 2024. Abbvie Inc. was the largest of 10 companies reporting payments in 2025, $702.60 in all, mostly food and beverage.
Overview
| NPI | 1891793105 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 11, 2005 |
| Last updated in NPPES | Mar 13, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2001031156 | 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 - Internal Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 290 |
|---|---|
| Services billed | 2,755 across 32 procedure codes |
| Paid by Medicare | $71,318 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,006 · 24,991 30-day fills |
|---|---|
| Patients | 748 |
| Total drug cost | $1,186,871 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Mercy Clinic East CommunitiesSaint Louis, MO · 571 clinicians
- Aging Well Health Care, LLCSaint Louis, MO · 238 clinicians
Hospital affiliations
- Barnes-Jewish St Peters HospitalSaint Peters, MO
- Mercy Hospital LincolnTroy, MO
- Mercy Hospital SouthSaint Louis, MO
- Mercy Hospital St LouisSaint Louis, MO
- St Lukes HospitalChesterfield, MO
Other facilities
- Amedisys Home Health of MissouriHome health agency · Hillsboro, MO
- Elara CaringHome health agency · Bridgeton, MO
- Elite Home HealthHome health agency · Creve Coeur, MO
- Mercy Home HealthHome health agency · Saint Louis, MO
- Mercy HospiceHospice · Saint Louis, MO
- Ssm Health Rehabilitation HospitalInpatient rehabilitation facility · Richmond Heights, MO
Industry payments (Open Payments)
- 2025$702.60 · 34 payments from 10 companies
- 2024$662.18 · 42 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $290.52 | 12 |
| Amgen Inc. | $86.72 | 4 |
| Astrazeneca Pharmaceuticals LP | $83.47 | 5 |
| Exact Sciences Corporation | $82.94 | 5 |
| Lilly USA, LLC | $39.99 | 2 |
What the 2025 payments were for
- Food and Beverage$702.60 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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