Don S. Dizon, MD
NPI 1376573394ActiveIndividual· Internal Medicine, Medical Oncology· Providence, RI
Internal Medicine, Medical Oncology (MD) in Providence, Rhode Island, trained at University of Rochester School of Medicine and Dentistry (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $738,413 for 221 claims, against $15,009 paid for services in 2024. Tersera Therapeutics LLC was the largest of 5 companies reporting payments in 2025, $6,467 in all, mostly consulting fees.
Overview
| NPI | 1376573394 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 4, 2006 |
| Last updated in NPPES | Dec 2, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 222651 | MA |
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 - Medical Oncology (MA); Practitioner - Internal Medicine (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 68 |
|---|---|
| Services billed | 190 across 11 procedure codes |
| Paid by Medicare | $15,009 |
Part D prescriptions in 2024
| Prescriptions (claims) | 221 · 263 30-day fills |
|---|---|
| Patients | 53 |
| Total drug cost | $738,413 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Rochester School of Medicine and Dentistry |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Pratt Medical Group IncBoston, MA · 286 clinicians
Hospital affiliation
- Tufts Medical CenterBoston, MA
Industry payments (Open Payments)
- 2025$6,467 · 11 payments from 5 companies
- 2024$9,636 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tersera Therapeutics LLC | $4,188 | 7 |
| Stemline Therapeutics Inc. | $1,560 | 1 |
| Astrazeneca Uk Limited | $500.00 | 1 |
| Novocure Inc. | $138.02 | 1 |
| Pfizer Inc. | $80.75 | 1 |
What the 2025 payments were for
- Consulting Fee$5,560 · 4 payments
- Food and Beverage$498.77 · 5 payments
- Travel and Lodging$408.28 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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