Leoncio S. Dizon, MD
NPI 1114982352ActiveIndividual· Internal Medicine· Jerseyville, IL
Internal Medicine (MD) with Jersey Community Hospital, practicing in Jerseyville, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,075,062 for 10,934 claims, against $496.82 paid for services in 2024. Abbvie Inc. was the largest of 23 companies reporting payments in 2025, $2,444 in all, mostly food and beverage. Lists Alton Memorial Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1114982352 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 19, 2006 |
| Last updated in NPPES | Nov 13, 2024 |
| Certified by provider | Nov 13, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036091652 | IL |
| Family Medicine | 207Q00000X | 036091652 | IL |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 18 |
|---|---|
| Services billed | 39 across 10 procedure codes |
| Paid by Medicare | $496.82 |
Part D prescriptions in 2024
| Prescriptions (claims) | 10,934 · 20,971 30-day fills |
|---|---|
| Patients | 548 |
| Total drug cost | $1,075,062 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Jersey Community HospitalJerseyville, IL · 61 clinicians
Hospital affiliations
- Alton Memorial HospitalAlton, IL
- Jersey Community HospitalJerseyville, IL
Other facilities
- Jersey County Health DeptHome health agency · Jerseyville, IL
- Jerseyville ManorNursing home · Jerseyville, IL
- Jerseyville Nsg & Rehab CenterNursing home · Jerseyville, IL
Industry payments (Open Payments)
- 2025$2,444 · 149 payments from 23 companies
- 2024$2,505 · 143 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $339.44 | 28 |
| Novo Nordisk Inc | $265.84 | 17 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $254.05 | 12 |
| Amgen Inc. | $213.53 | 13 |
| Pfizer Inc. | $201.71 | 13 |
What the 2025 payments were for
- Food and Beverage$2,444 · 149 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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