Radiation Oncology in Hawaii
33 licensed radiation oncologists practicing in Hawaii across 10 cities.
This page republishes public records from the federal NPI Registry, which every licensed U.S. healthcare provider is required to maintain. These are federal-agency records, not a directory we compile.
Source: NPI Registry · last checked
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NPI Registry records — Radiation Oncology in Hawaii
24 of 33 shown have disclosed payments in CMS Open Payments (2024)
Showing 33 of 33 federal NPI records, alphabetical by last name. Contact details come directly from the NPI Registry — verify currency with the provider's office. Pharma / device payment disclosures from CMS Open Payments are shown where the physician appears in that federal database.
In 2024, $613 was disclosed to this physician across 15 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($557) and gifts ($56).
Largest single payer: Janssen Scientific Affairs, LLC ($126).
In 2024, $16 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($16).
Largest single payer: Phathom Pharmaceuticals, Inc. ($16).
Michael Mann Chamberlin, MD
1 Jarrett White Rd
Tripler Army Medical Center, HI 96859 · (808) 433-2390
License: MD21713 (HI)
In 2024, $166 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($166).
Largest single payer: E.R. Squibb & Sons, L.L.C. ($150).
In 2024, $140 was disclosed to this physician across 6 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($140).
Largest single payer: NOVARTIS PHARMACEUTICALS CORPORATION ($33).
In 2024, $1,218 was disclosed to this physician across 37 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($1,093) and consulting fees ($125).
Largest single payer: AstraZeneca Pharmaceuticals LP ($218).
In 2024, $422 was disclosed to this physician across 18 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($422).
Largest single payer: NOVARTIS PHARMACEUTICALS CORPORATION ($96).
Mark T. Kanemori, MD
1650 Liliha St, Suite 105
Honolulu, HI 96817 · (808) 524-3131
License: 9435 (HI)
In 2024, $286 was disclosed to this physician across 12 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($286).
Largest single payer: Merck Sharp & Dohme LLC ($77).
Richard Y Lee, MD PHD
2226 Liliha St Ste B2
Honolulu, HI 96817 · (808) 744-6187
License: HI16193 (HI)
In 2024, $166 was disclosed to this physician across 6 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($166).
Largest single payer: Janssen Biotech, Inc. ($69).
Alexander Justin Lin, MD
645 N Arlington Ave Ste 120
Reno, NV 89503 · (775) 770-7410
License: 21380 (NV)
In 2024, $34 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($34).
Largest single payer: NOVARTIS PHARMACEUTICALS CORPORATION ($34).
Pi-Ju Christina Liu, MD
1650 Liliha St, Suite 105
Honolulu, HI 96817 · (808) 524-3131
License: 9582 (HI)
In 2024, $262 was disclosed to this physician across 9 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($262).
Largest single payer: icotec Medical Inc. ($84).
In 2024, $959 was disclosed to this physician across 30 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($959).
Largest single payer: AstraZeneca Pharmaceuticals LP ($217).
Anthony Lane Michaud, MD
1301 Punchbowl St
Honolulu, HI 96813 · (808) 691-1000
License: MD18975 (HI)
In 2024, $949 was disclosed to this physician across 17 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($949).
Largest single payer: FUJIFILM Healthcare Americas Corporation ($205).
In 2023, $128 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($128).
Scott D.m. Moon, MD
1301 Punchbowl St, The Queen's Medical Center Dept of Rad Onc
Honolulu, HI 96813 · (808) 691-4771
License: 7901 (HI)
In 2024, $439 was disclosed to this physician across 8 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($439).
Largest single payer: Janssen Biotech, Inc. ($143).
In 2023, $24 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($24).
David Timothy Padro, DO
1 Jarrett White Rd
Tripler Army Medical Center, HI 96859 · (808) 683-2778
License: DOS-2028 (HI)
In 2023, $28 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($28).
In 2024, $1,060 was disclosed to this physician across 19 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($1,060).
Largest single payer: Janssen Scientific Affairs, LLC ($383).
In 2024, $18 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($18).
Largest single payer: Sumitomo Pharma America, Inc. ($18).
Michael C Roach, MD
2226 Liliha St Ste B2
Honolulu, HI 96817 · (808) 547-6881
License: MD-20574 (HI)
In 2024, $1,178 was disclosed to this physician across 20 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($1,178).
Largest single payer: Janssen Scientific Affairs, LLC ($268).
In 2024, $35 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($35).
Largest single payer: E.R. Squibb & Sons, L.L.C. ($35).
Christina Koo Speirs, MD PHD
2226 Liliha St, B2
Honolulu, HI 96817 · (808) 547-6881
License: 18300 (HI)
In 2024, $477 was disclosed to this physician across 5 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($477).
Largest single payer: Siemens Medical Solutions USA, Inc. ($175).
Merle Spencer Sprague, MD
1 Jarrett White Blvd, Tripler Army Medical Center
Honolulu, HI 96855 · (808) 433-6601
License: F4207 (TX)
Garth William Tormoen, MD
645 N Arlington Ave Ste 120
Reno, NV 89503 · (775) 848-2583
License: 20030 (NV)
In 2024, $24 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($24).
Largest single payer: NOVARTIS PHARMACEUTICALS CORPORATION ($24).
Stuart Tsuji, MD, PHD
1301 Punchbowl St, Dept of Radiation Oncology
Honolulu, HI 96813 · (808) 547-4771
License: MD15308 (HI)
In 2024, $248 was disclosed to this physician across 9 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($248).
Largest single payer: icotec Medical Inc. ($84).
In 2024, $439 was disclosed to this physician across 18 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($439).
Largest single payer: Janssen Biotech, Inc. ($88).
Payment totals shown for the latest published program year (2024). Presence of disclosed payments is not, on its own, a conflict of interest. Physicians dispute records directly with CMS (dispute process). How we show this.
Open Payments figures as displayed on . Corrections flow from the manufacturer through CMS and are adopted on our next refresh.
What this page is: a republication of public federal NPI Registry records, filtered to the radiation oncology taxonomy. It is not a directory we curate, and inclusion is automatic based on each provider's own NPI filing with CMS. Providers who believe their NPI record is inaccurate should update it directly with CMS at npiregistry.cms.hhs.gov; our next refresh adopts the corrected federal record.
Practice info disclaimer: Provider addresses and phone numbers come from the NPI Registry, which providers update at their discretion. Always call ahead to confirm the provider is currently accepting patients and is at the listed address.
Medical disclaimer: This page is not a quality ranking and does not constitute medical advice or endorsement. Choose a provider in consultation with your primary care physician or care team.
Source: NPI Registry (taxonomy: Radiation Oncology) · Last checked: 2026-04-20