Richard S. Stack, M.D.
NPI 1376519017ActiveIndividual· Urology· Tripler Amc, HI
Urology (M.D.) with Kau Hospital and 1 other group, practicing in Tripler Amc, Hawaii. Their prescriptions cost Medicare Part D more than their services did: $223,349 for 1,193 claims, against $20,390 paid for services in 2024. Boston Scientific Corporation was the largest of 3 companies reporting payments in 2025, $329.72 in all, mostly food and beverage. Lists Hilo Benioff Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1376519017 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 23, 2006 |
| Last updated in NPPES | May 1, 2025 |
| Certified by provider | May 1, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | MA50961 | NJ |
| Urology | 208800000X | MD-14129 | HI |
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 - Urology (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 51 |
|---|---|
| Services billed | 128 across 40 procedure codes |
| Paid by Medicare | $20,390 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,193 · 2,983 30-day fills |
|---|---|
| Patients | 291 |
| Total drug cost | $223,349 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Urology |
Medical groups
- Kau HospitalHilo, HI · 140 clinicians
- Hilo Benioff Medical CenterHilo, HI · 129 clinicians
Hospital affiliations
- Hilo Benioff Medical CenterHilo, HI
- Kau HospitalPahala, HI
Industry payments (Open Payments)
- 2025$329.72 · 9 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $176.77 | 2 |
| Urogen Pharma, Inc. | $135.70 | 6 |
| Telix Pharmaceuticals | $17.25 | 1 |
What the 2025 payments were for
- Food and Beverage$329.72 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Urology providers in Tripler Amc
- 1336587393
- 1487635868
- 1356310221