Kenneth N.m. Sumida, M.D.
Hematology & Oncology Physician · Honolulu, HI
Kenneth N.m. Sumida, M.D. is a hematology & oncology physician with a practice address in Honolulu, Hawaii, and NPI 1437126380, issued on Feb 28, 2006. Check the license (Hawaii MD6645, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Kenneth N.m. Sumida
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- MD6645 HI
Self-reported in NPPES; status is on the state search - Practice location
- 321 N Kuakini St, Honolulu, HI 96817
- Phone
- (808) 531-8521
- Enumerated
- Feb 28, 2006
- Record last updated
- Jan 12, 2023
- Fax
- (808) 539-9337
- Medicaid ID
- 05490001 HI
- Medicare enrollment
- Enrolled (PECOS I20101210000095); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 1982
- 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 321 N Kuakini St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jared Acoba, M.D.Hematology & Oncology Physician1508889338
- Thomas Au, MDInternal Medicine Physician1184770463
- Timothy Au, M.D.Internal Medicine Physician1518287598
- Steven Azuma, M.D.Cardiovascular Disease Physician1518966233
- Arlene Baldillo, D.O.Obstetrics & Gynecology Physician1124234331
- Baron Ching, M.D.Internal Medicine Physician1003959065
Verify Kenneth N.m. Sumida in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD6645Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,477 Medicare Part D claims for 192 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims. 36 claims were for opioids.
Most prescribed
- Anastrozole136 claims
- Prednisone75 claims
- Dexamethasone70 claims
- Abiraterone Acetate55 claims
- Hydroxyurea54 claims
- Sulfamethoxazole-Trimethoprim54 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 MIPS final score for 2023 (Medicare payment program): 94.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $284.28
5 payments; by number, the most common kind was food and beverage; the largest payer was US Oncology Corporate, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- The Queens Medical CenterHonolulu, HI · Acute Care Hospitals3 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.
Kenneth N.m. Sumida among 49 hematology & oncology physician records in Hawaii
Kenneth N.m. Sumida, 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
- Graduated1982 · median 2000 among the 34 with a school on file
- Record last updated2023 · 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
- Jared Acoba, M.D.Honolulu, HI 968171508889338
- Jodi Kagihara, M.D.Honolulu, HI 968171598176802
- Kaye Kawahara, M.D.Honolulu, HI 968171225005176
- Michelle Miyashiro, M.D.Honolulu, HI 968171336116706
- Gordon Nakano, M.D.Honolulu, HI 968171356318208
- Ryon Nakasone, MDHonolulu, HI 968171114138351
- Nicolas Villanueva, MDHonolulu, HI 968171346683463
- Keola Beale, M.D.Honolulu, HI 968191699706622
Common questions
What is Kenneth N.m. Sumida, M.D.'s NPI number?
Kenneth N.m. Sumida, M.D.'s National Provider Identifier (NPI) is 1437126380, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth N.m. Sumida, M.D. located?
The NPPES record lists a practice address at 321 N Kuakini St, Honolulu, HI, 96817. Phone: (808) 531-8521. Providers update this record themselves, so call before visiting.
How can I verify Kenneth N.m. Sumida, M.D.'s license?
NPPES lists Hawaii license number MD6645, 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 Kenneth N.m. Sumida, M.D. prescribe under Medicare Part D?
In 2024, Kenneth N.m. Sumida, M.D. had 1,477 Medicare Part D claims for 192 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Kenneth N.m. Sumida, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.2 of 100. 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.