Natsumi Hamahata, MD
Critical Care Medicine (Internal Medicine) Physician · Honolulu, HI
Natsumi Hamahata, MD is a critical care medicine (internal medicine) physician with a practice address in Honolulu, Hawaii, and NPI 1629507264, issued on Jun 7, 2017. Check the license (Hawaii MD-21205, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Natsumi Hamahata
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- MD-21205 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
- Jun 7, 2017
- Record last updated
- May 8, 2023
- Medicare enrollment
- Enrolled (PECOS I20230721002566); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 36 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.
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- 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 Natsumi Hamahata in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-21205Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 100 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).
Bills Medicare through one group practice
- Aloha Critical Care Associates LLPHonolulu, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Natsumi Hamahata among 36 critical care medicine (internal medicine) physician records in Hawaii
Natsumi Hamahata, MD is one of 36 critical care medicine (internal medicine) physician records with a practice address in Hawaii. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 92% of them.
- NPI issued2017 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2013 · median 2005 among the 28 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Hawaii
There are 36 critical care medicine (internal medicine) physician records in Hawaii.
All 36 in Hawaii → Every provider in Honolulu → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Russell Gilbert, M.D.Honolulu, HI 968131417918798
- Sonia HowmanHonolulu, HI 968131457414724
- Sailaja Kolli, M.D.Honolulu, HI 968131205925369
- Marc Kruger, M.D.Honolulu, HI 968131275572026
- Artur Krupa, M.D.Honolulu, HI 968131093788440
- Gary Kuniyoshi, MDHonolulu, HI 968131558388223
- Jordan Lee, M.D.Honolulu, HI 968131174847842
- Poh Leng, M.D.Honolulu, HI 968131477520120
Common questions
What is Natsumi Hamahata, MD's NPI number?
Natsumi Hamahata, MD's National Provider Identifier (NPI) is 1629507264, issued on Jun 7, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Natsumi Hamahata, MD 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 Natsumi Hamahata, MD's license?
NPPES lists Hawaii license number MD-21205, 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.
What is Natsumi Hamahata, MD's MIPS final score?
The 2023 MIPS final score is 100 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.