Cass K. Nakasone, M.D.
NPI 1316011091ActiveIndividual· Orthopaedic Surgery· Honolulu, HI
Orthopaedic Surgery (M.D.) in Honolulu, Hawaii, trained at University of Hawaii John A. Burns School of Medicine (class of 1998). Mostly services rather than prescriptions: Medicare paid $222,299 for 311 patients in 2024, with only 35 Part D claims. Ortho Development Corporation was the largest of 4 companies reporting payments in 2025, $138,551 in all, mostly royalties and licenses.
Overview
| NPI | 1316011091 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 17, 2006 |
| Last updated in NPPES | Oct 8, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | MD-13396 | 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 - Orthopedic Surgery (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 311 |
|---|---|
| Services billed | 510 across 26 procedure codes |
| Paid by Medicare | $222,299 |
Part D prescriptions in 2024
| Prescriptions (claims) | 35 · 35 30-day fills |
|---|---|
| Patients | 18 |
| Total drug cost | $118.27 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | University of Hawaii John A. Burns School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Straub Clinic and HospitalHonolulu, HI · 419 clinicians
Hospital affiliations
- Adventist Health CastleKailua, HI
- North Hawaii Community Hospital, IncKamuela, HI
- Pali Momi Medical CenterAiea, HI
- Straub Clinic and HospitalHonolulu, HI
- The Queens Medical CenterHonolulu, HI
Other facilities
- Adventist Health Home Care ServicesHome health agency · Kaneohe, HI
- Rehabilitation Hospital of the PacificInpatient rehabilitation facility · Honolulu, HI
Industry payments (Open Payments)
- 2025$138,551 · 67 payments from 4 companies
- 2024$127,687 · 52 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ortho Development Corporation | $112,732 | 42 |
| Zimmer Biomet Holdings, Inc. | $13,796 | 13 |
| Orthalign Inc | $11,926 | 11 |
| Cumberland Pharmaceuticals, Inc. | $96.71 | 1 |
What the 2025 payments were for
- Royalty or License$100,759 · 23 payments
- Consulting Fee$23,625 · 11 payments
- Travel and Lodging$11,421 · 11 payments
- Food and Beverage$2,746 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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