Gregory Lewis Desilva, MD
NPI 1770523656ActiveIndividual· Orthopaedic Surgery· Tucson, AZ
Orthopaedic Surgery (MD) in Tucson, Arizona, trained at University of Michigan Medical School (class of 1994). Mostly services rather than prescriptions: Medicare paid $64,024 for 267 patients in 2024, with only 33 Part D claims. Endo USA, Inc. was the largest of 7 companies reporting payments in 2025, $784.51 in all, mostly food and beverage.
Overview
| NPI | 1770523656 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 7, 2006 |
| Last updated in NPPES | Sep 4, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 4301064231 | MI |
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 - Orthopedic Surgery (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 267 |
|---|---|
| Services billed | 546 across 61 procedure codes |
| Paid by Medicare | $64,024 |
Part D prescriptions in 2024
| Prescriptions (claims) | 33 · 39 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $378.67 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Banner-University Medical GroupTucson, AZ · 1,072 clinicians
Hospital affiliations
Industry payments (Open Payments)
- 2025$784.51 · 12 payments from 7 companies
- 2024$378.14 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Endo USA, Inc. | $223.89 | 2 |
| Stryker Corporation | $194.10 | 3 |
| Smith+nephew, Inc. | $126.78 | 2 |
| Osteocentric Technologies, Inc. | $115.79 | 1 |
| Medartis Inc. | $71.95 | 1 |
What the 2025 payments were for
- Food and Beverage$784.51 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 98 orthopedic surgeons in Tucson · All orthopedic surgeons in Arizona