Ives R. De Chazal, MD
NPI 1891792107ActiveIndividual· Internal Medicine, Pulmonary Disease· Tucson, AZ
Internal Medicine, Pulmonary Disease (MD) with Tmc Medical Network and 2 other groups, practicing in Tucson, Arizona. Their prescriptions cost Medicare Part D more than their services did: $702,787 for 2,171 claims, against $180,795 paid for services in 2024. Insmed, Inc. was the largest of 9 companies reporting payments in 2025, $398.40 in all, mostly food and beverage. Lists St Joseph's Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1891792107 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 30, 2005 |
| Last updated in NPPES | Sep 13, 2021 |
| Certified by provider | Sep 13, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 34142 | AZ |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 34142 | AZ |
| Internal Medicine, Sleep Medicine | 207RS0012X | 177980 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 564 |
|---|---|
| Services billed | 2,555 across 35 procedure codes |
| Paid by Medicare | $180,795 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,171 · 3,343 30-day fills |
|---|---|
| Patients | 394 |
| Total drug cost | $702,787 |
| Generic share | 49% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
Medical groups
- Tmc Medical NetworkTucson, AZ · 281 clinicians
- TmconeGreen Valley, AZ · 96 clinicians
- Ives de Chazal, MD, PLLCTucson, AZ · 2 clinicians
Hospital affiliations
- St Joseph's HospitalTucson, AZ
- Tucson Medical CenterTucson, AZ
Industry payments (Open Payments)
- 2025$398.40 · 19 payments from 9 companies
- 2024$246.85 · 14 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insmed, Inc. | $139.05 | 6 |
| Jazz Pharmaceuticals Inc. | $65.96 | 2 |
| Amgen Inc. | $58.05 | 3 |
| Verona Pharma, Inc. | $33.63 | 1 |
| Inspire Medical Systems, Inc. | $22.82 | 1 |
What the 2025 payments were for
- Food and Beverage$398.40 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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