C Galen Choy, M.D.
Hematology & Oncology Physician · Honolulu, HI
C Galen Choy, M.D. is a hematology & oncology physician with a practice address in Honolulu, Hawaii, and NPI 1790799393, issued on Jul 28, 2006. Check the license (Hawaii MD-6329, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- C Galen Choy
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- MD-6329 HI
Self-reported in NPPES; status is on the state search - Practice location
- 888 S King St, Honolulu, HI 96813
- Phone
- (808) 522-4000
- Enumerated
- Jul 28, 2006
- Record last updated
- Mar 16, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (808) 522-4334
- Medicare enrollment
- Enrolled (PECOS I20060914000003); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1986
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 49 in Hawaii → Look up another NPI →
Also registered at 888 S King St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ayman Abdul-Ghani, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1548449218
- Cedric Akau, M.D.Physical Medicine & Rehabilitation Physician1437254034
- Christopher Apostolides, PAPhysician Assistant1083655153
- Stephen Arnold, M.D.Internal Medicine Physician1598859928
- Swaty Arora, MDHematology & Oncology Physician1194037432
- Whitney Reigh Asao, OTD, OTR/LOccupational Therapist1568082766
Verify C Galen Choy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-6329Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average hematology & oncology physician in 2024
985 Medicare Part D claims for 211 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 35 claims were for opioids.
Most prescribed
- Anastrozole200 claims
- Letrozole74 claims
- Alendronate Sodium70 claims
- Ondansetron Hcl41 claims
- Tamoxifen Citrate38 claims
- Lidocaine-Prilocaine37 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
2 hospital affiliations
- Pali Momi Medical CenterAiea, HI · Acute Care Hospitals4 of 5 stars
- Straub Clinic And HospitalHonolulu, HI · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
C Galen Choy among 49 hematology & oncology physician records in Hawaii
C Galen Choy, M.D. is one of 49 hematology & oncology physician records with a practice address in Hawaii. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 39% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1986 · median 2000 among the 34 with a school on file
- Record last updated2012 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Hawaii
There are 49 hematology & oncology physician records in Hawaii.
All 49 in Hawaii → Every provider in Honolulu → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Swaty Arora, MDHonolulu, HI 968131194037432
- Craig Boddy, M.D.Honolulu, HI 968131265796270
- Jonathan Cho, M.D.Honolulu, HI 968131174590541
- Reginald Ho, M.D.Honolulu, HI 968131811086101
- Brian Issell, MD FACPHonolulu, HI 968131235100884
- William Loui, M.D.Honolulu, HI 968131346217718
- Melvin Palalay, M.D.Honolulu, HI 968131508833971
- Jessica RheeHonolulu, HI 968131053585547
Common questions
What is C Galen Choy, M.D.'s NPI number?
C Galen Choy, M.D.'s National Provider Identifier (NPI) is 1790799393, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is C Galen Choy, M.D. located?
The NPPES record lists a practice address at 888 S King St, Honolulu, HI, 96813. Phone: (808) 522-4000. Providers update this record themselves, so call before visiting.
How can I verify C Galen Choy, M.D.'s license?
NPPES lists Hawaii license number MD-6329, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does C Galen Choy, M.D. prescribe under Medicare Part D?
In 2024, C Galen Choy, M.D. had 985 Medicare Part D claims for 211 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is C Galen Choy, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.