Brent Yamashiro, M.D.
Emergency Medicine Physician · Kailua, HI
Brent Yamashiro, M.D. is an emergency medicine physician with a practice address in Kailua, Hawaii, and NPI 1558533281, issued on Apr 2, 2008. Check the license on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brent Yamashiro
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 207P00000X CA
Self-reported in NPPES; status is on the state search - Practice location
- 407 Uluniu Street #411, Kailua, HI 96734
- Phone
- (808) 263-7203
- Enumerated
- Apr 2, 2008
- Record last updated
- May 23, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (808) 263-4604
- Medicare enrollment
- Enrolled (PECOS I20110502000292); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 2008
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 370 in Hawaii → Look up another NPI →
Verify Brent Yamashiro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average emergency medicine physician in 2024
305 Medicare Part D claims for 186 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 36 claims were for opioids.
Most prescribed
- Ondansetron Odt44 claims
- Cephalexin42 claims
- Hydrocodone-Acetaminophen27 claims
- Doxycycline Monohydrate19 claims
- Albuterol Sulfate Hfa18 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
- Maui Memorial Emergency Medical Associates IncWailuku, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brent Yamashiro among 370 emergency medicine physician records in Hawaii
Brent Yamashiro, M.D. is one of 370 emergency medicine physician records with a practice address in Hawaii. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 50% of them.
- NPI issued2008 · 50% of these records are older, 42% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2008 · median 2012 among the 202 with a school on file
- Record last updated2014 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
64 emergency medicine physician records list a practice address in Kailua
They are 64 of the 1,421 NPPES records with a practice address in Kailua, and 370 emergency medicine physician records in Hawaii.
All 370 in Hawaii → Every provider in Kailua → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Audrius Aglinskas, M.D.Kailua, HI 967341295833481
- Philip Chung, MDKailua, HI 967341417066747
- Katherine Heinzen Jim, M.D.Kailua, HI 967341821032822
- Lisa Hendrickson, M.D.Kailua, HI 967341710918990
- Christopher King, M.D.Kailua, HI 967341093814568
- Kendrick Lee, M.D.Kailua, HI 967341265531776
- Steven Mates, DOKailua, HI 967341104939362
- Joseph Pollard, D.O.Kailua, HI 967341386677003
Common questions
What is Brent Yamashiro, M.D.'s NPI number?
Brent Yamashiro, M.D.'s National Provider Identifier (NPI) is 1558533281, issued on Apr 2, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Brent Yamashiro, M.D. located?
The NPPES record lists a practice address at 407 Uluniu Street #411, Kailua, HI, 96734. Phone: (808) 263-7203. Providers update this record themselves, so call before visiting.
How can I verify Brent Yamashiro, M.D.'s license?
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 Brent Yamashiro, M.D. prescribe under Medicare Part D?
In 2024, Brent Yamashiro, M.D. had 305 Medicare Part D claims for 186 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.