Philip T. Diaz, MD
NPI 1114930476ActiveIndividual· Internal Medicine, Critical Care Medicine· Columbus, OH
Internal Medicine, Critical Care Medicine (MD) in Columbus, Ohio, trained at Pennsylvania State University College of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $1,529,602 for 3,623 claims, against $55,870 paid for services in 2024. Insmed, Inc. reported $17.38 in payments in 2025, mostly education.
Overview
| NPI | 1114930476 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 15, 2006 |
| Last updated in NPPES | Feb 26, 2026 |
| Certified by provider | Feb 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | 35.058205 | OH |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 35.058205 | OH |
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 - Pulmonary Disease (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 284 |
|---|---|
| Services billed | 756 across 23 procedure codes |
| Paid by Medicare | $55,870 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,623 · 4,711 30-day fills |
|---|---|
| Patients | 332 |
| Total drug cost | $1,529,602 |
| Generic share | 49% of claims |
Education and affiliations
| Medical school | Pennsylvania State University College of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical group
- Osu Internal Medicine LLCColumbus, OH · 1,161 clinicians
Hospital affiliations
- Ohio State University State Health SystemColumbus, OH
- Southern Ohio Medical CenterPortsmouth, OH
Industry payments (Open Payments)
- 2025$17.38 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insmed, Inc. | $17.38 | 1 |
What the 2025 payments were for
- Education$17.38 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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