Craig Yoshio Hamasaki, M.D.
Internal Medicine Physician · Aiea, HI
Craig Yoshio Hamasaki, M.D. is an internal medicine physician with a practice address in Aiea, Hawaii, and NPI 1003870478, issued on Apr 13, 2006. Check the license (Hawaii MD-5730, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Craig Yoshio Hamasaki
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD-5730 HI
Self-reported in NPPES; status is on the state search - Practice location
- 98-1247 Kaahumanu Street, Aiea, HI 96701
- Phone
- (808) 486-9119
- Enumerated
- Apr 13, 2006
- Record last updated
- Sep 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (808) 486-9401
- Medicare enrollment
- Enrolled (PECOS I20050929000992); accepts Medicare assignment
- Medical or professional school
- Un Of California, Irvine, College Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 902 in Hawaii → Look up another NPI →
Also registered at 98-1247 Kaahumanu Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Calvin Oishi, M.D.Orthopaedic Surgery Physician1194776880
- Cynthia Quinn, MFTMarriage & Family Therapist1528109329
Verify Craig Yoshio Hamasaki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-5730Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% more Medicare Part D claims than the average internal medicine physician in 2024
5,452 Medicare Part D claims for 442 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 72 claims were for opioids.
Most prescribed
- Atorvastatin Calcium643 claims
- Amlodipine Besylate343 claims
- Losartan Potassium338 claims
- Metformin Hcl239 claims
- Metoprolol Succinate175 claims
- Simvastatin159 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.
Bills Medicare through one group practice
- Hoola Healthcare LLCAiea, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Craig Yoshio Hamasaki among 902 internal medicine physician records in Hawaii
Craig Yoshio Hamasaki, M.D. is one of 902 internal medicine physician records with a practice address in Hawaii. 71% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 55% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 54% of these records are
- Graduated1984 · median 2001 among the 491 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 internal medicine physician records list a practice address in Aiea
They are 36 of the 1,481 NPPES records with a practice address in Aiea, and 902 internal medicine physician records in Hawaii.
All 902 in Hawaii → Every provider in Aiea → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Francis Buto, M.D.Aiea, HI 967011124061189
- Shayne Castanera, M.D.Aiea, HI 967011053337469
- Michael Dimitrion, MDAiea, HI 967011508878836
- Alvin Fuse, M.D.Aiea, HI 967011871536011
- Ky Le, MDAiea, HI 967011073560025
- Bryan Matsumoto, M.D.Aiea, HI 967011932142072
- Michael Mihara, M.D.Aiea, HI 967011750324919
- Dawn Miura, M.D.Aiea, HI 967011003824160
Common questions
What is Craig Yoshio Hamasaki, M.D.'s NPI number?
Craig Yoshio Hamasaki, M.D.'s National Provider Identifier (NPI) is 1003870478, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Craig Yoshio Hamasaki, M.D. located?
The NPPES record lists a practice address at 98-1247 Kaahumanu Street, Aiea, HI, 96701. Phone: (808) 486-9119. Providers update this record themselves, so call before visiting.
How can I verify Craig Yoshio Hamasaki, M.D.'s license?
NPPES lists Hawaii license number MD-5730, 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 Craig Yoshio Hamasaki, M.D. prescribe under Medicare Part D?
In 2024, Craig Yoshio Hamasaki, M.D. had 5,452 Medicare Part D claims for 442 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.