Alan C. Desilva, MD INC.
NPI 1790885994ActiveIndividual· Internal Medicine· Hilo, HI
Internal Medicine (MD INC.) in Hilo, Hawaii, trained at University of Hawaii John A. Burns School of Medicine (class of 1975). Their prescriptions cost Medicare Part D more than their services did: $489,163 for 6,523 claims, against $68,991 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 2 companies reporting payments in 2025, $93.78 in all, mostly food and beverage.
Overview
| NPI | 1790885994 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD INC. |
| Sole proprietor | No |
| NPI issued | Sep 25, 2006 |
| Last updated in NPPES | Mar 26, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 3482 | HI |
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 (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 333 |
|---|---|
| Services billed | 963 across 9 procedure codes |
| Paid by Medicare | $68,991 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,523 · 16,789 30-day fills |
|---|---|
| Patients | 459 |
| Total drug cost | $489,163 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of Hawaii John A. Burns School of Medicine |
|---|---|
| Graduation year | 1975 |
| Medicare specialty | Internal Medicine |
Hospital affiliation
- Hilo Benioff Medical CenterHilo, HI
Other facilities
- Bayada Home Health CareHome health agency · Hilo, HI
- DBA Hawai'I Care ChoicesHospice · Hilo, HI
- Life Care Center of HiloNursing home · Hilo, HI
Industry payments (Open Payments)
- 2025$93.78 · 5 payments from 2 companies
- 2024$44.22 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $71.84 | 4 |
| Amgen Inc. | $21.94 | 1 |
What the 2025 payments were for
- Food and Beverage$93.78 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 49 internal medicine physicians in Hilo · All internal medicine physicians in Hawaii