Christina Koo Speirs, MD PHD
NPI 1386934495ActiveIndividual· Radiology, Radiation Oncology· Honolulu, HI
Radiology, Radiation Oncology (MD PHD) with Gamma Knife Center of the Pacific Inc and 2 other groups, practicing in Honolulu, Hawaii. In 2024 Medicare paid $497,329 for 372 patients, and Part D covered 298 of their prescriptions, 76% of them generic. Novocure Inc. was the largest of 6 companies reporting payments in 2025, $419.86 in all, mostly food and beverage. Lists Adventist Health Castle and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1386934495 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD PHD |
| Sole proprietor | No |
| NPI issued | Apr 10, 2011 |
| Last updated in NPPES | Jun 17, 2025 |
| Certified by provider | Jun 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 18300 | 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 - Radiation Oncology (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 372 |
|---|---|
| Services billed | 3,901 across 40 procedure codes |
| Paid by Medicare | $497,329 |
Part D prescriptions in 2024
| Prescriptions (claims) | 298 · 365 30-day fills |
|---|---|
| Patients | 145 |
| Total drug cost | $6,578 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Gamma Knife Center of the Pacific IncHonolulu, HI · 6 clinicians
- Cancer Center of Hawaii LLCHonolulu, HI · 6 clinicians
- Pacific Radiation Oncology LLCHonolulu, HI · 6 clinicians
Hospital affiliations
- Adventist Health CastleKailua, HI
- Kapiolani Medical Center for Women & ChildrenHonolulu, HI
- Pali Momi Medical CenterAiea, HI
- Straub Clinic and HospitalHonolulu, HI
- The Queens Medical CenterHonolulu, HI
Industry payments (Open Payments)
- 2025$419.86 · 7 payments from 6 companies
- 2024$477.11 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novocure Inc. | $212.74 | 2 |
| Janssen Scientific Affairs, LLC | $109.15 | 1 |
| Medtronic, Inc. | $28.80 | 1 |
| E.R. Squibb & Sons, L.L.C. | $25.47 | 1 |
| Merck Sharp & Dohme LLC | $22.70 | 1 |
What the 2025 payments were for
- Food and Beverage$419.86 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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