Izumi Sidney Kobashigawa, MD
Family Medicine Physician · Honolulu, HI
Izumi Sidney Kobashigawa, MD is a family medicine physician with a practice address in Honolulu, Hawaii, and NPI 1366550865, issued on Aug 26, 2006. Check the license (Hawaii MD5067, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Izumi Sidney Kobashigawa
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD5067 HI
Self-reported in NPPES; status is on the state search - Practice location
- 321 N Kuakini Street, Honolulu, HI 96817
- Phone
- (808) 528-2877
- Enumerated
- Aug 26, 2006
- Record last updated
- Aug 11, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (808) 528-2878
- Medicaid ID
- 01627901 HI
- Medicare enrollment
- Enrolled (PECOS I20101027001422); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 730 in Hawaii → Look up another NPI →
Also registered at 321 N Kuakini Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Izumi Sidney Kobashigawa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD5067Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% more Medicare Part D claims than the average family medicine physician in 2024
6,441 Medicare Part D claims for 453 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 30 claims were for opioids.
Most prescribed
- Atorvastatin Calcium680 claims
- Amlodipine Besylate564 claims
- Losartan Potassium364 claims
- Rosuvastatin Calcium318 claims
- Levothyroxine Sodium216 claims
- Metformin Hcl Er172 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $116.74
5 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
Izumi Sidney Kobashigawa among 730 family medicine physician records in Hawaii
Izumi Sidney Kobashigawa, MD is one of 730 family medicine physician records with a practice address in Hawaii. 65% 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, 58% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1981 · median 2006 among the 383 with a school on file
- Record last updated2009 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
160 family medicine physician records list a practice address in Honolulu
They are 160 of the 12,408 NPPES records with a practice address in Honolulu, and 730 family medicine physician records in Hawaii.
All 730 in Hawaii → Every provider in Honolulu → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kenneth Fink, MDHonolulu, HI 968171225020720
- Tsuneari Hayashi, M.D.Honolulu, HI 968171104147677
- Barbara Kobayashi, MDHonolulu, HI 968171245386325
- Jesus Lucas, M.D., PHD.Honolulu, HI 968171790703197
- Melissa McKinney, D.O.Honolulu, HI 968171124112123
- Caroline Mee, M.D.Honolulu, HI 968171508035015
- Owen Nishikawa, MDHonolulu, HI 968171053471797
- Lauren Okamoto, MDHonolulu, HI 968171023270394
Common questions
What is Izumi Sidney Kobashigawa, MD's NPI number?
Izumi Sidney Kobashigawa, MD's National Provider Identifier (NPI) is 1366550865, issued on Aug 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Izumi Sidney Kobashigawa, MD located?
The NPPES record lists a practice address at 321 N Kuakini Street, Honolulu, HI, 96817. Phone: (808) 528-2877. Providers update this record themselves, so call before visiting.
How can I verify Izumi Sidney Kobashigawa, MD's license?
NPPES lists Hawaii license number MD5067, 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 Izumi Sidney Kobashigawa, MD prescribe under Medicare Part D?
In 2024, Izumi Sidney Kobashigawa, MD had 6,441 Medicare Part D claims for 453 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Izumi Sidney Kobashigawa, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.