Keiichi Kobayashi, M.D.
Internal Medicine Physician · Honolulu, HI
Keiichi Kobayashi, M.D. is an internal medicine physician with a practice address in Honolulu, Hawaii, and NPI 1134150089, issued on Jul 6, 2006. Check the license (Hawaii 7904, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Keiichi Kobayashi
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 7904 HI
Self-reported in NPPES; status is on the state search - Practice location
- 1441 Kapiolani Blvd. #2000, Honolulu, HI 96814
- Phone
- (808) 945-3719
- Enumerated
- Jul 6, 2006
- Record last updated
- Sep 1, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (808) 945-3629
- Medicare enrollment
- Enrolled (PECOS I20060116000016); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 902 in Hawaii → Look up another NPI →
Also registered at 1441 Kapiolani Blvd. #2000
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eiichi Furuta, M.D.Internal Medicine Physician1508897547
- Yesid Romero Romero, APRNGerontology Nurse Practitioner1922578418
Verify Keiichi Kobayashi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license 7904Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% more Medicare Part D claims than the average internal medicine physician in 2024
4,049 Medicare Part D claims for 468 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium402 claims
- Rosuvastatin Calcium250 claims
- Amlodipine Besylate245 claims
- Alendronate Sodium226 claims
- Olmesartan Medoxomil203 claims
- Levothyroxine Sodium184 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.
Industry payments in 2024: $195.43
5 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- St Lukes Clinic-Ala Moana IncHonolulu, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keiichi Kobayashi among 902 internal medicine physician records in Hawaii
Keiichi Kobayashi, 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
- Graduated1988 · median 2001 among the 491 with a school on file
- Record last updated2010 · 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).
579 internal medicine physician records list a practice address in Honolulu
They are 579 of the 12,408 NPPES records with a practice address in Honolulu, and 902 internal medicine physician records in Hawaii.
All 902 in Hawaii → Every provider in Honolulu → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mina Ganapathy, MDHonolulu, HI 968141265493662
- Birendra Huja, M.D.Honolulu, HI 968141386625630
- Melvin Inamasu, M.D.Honolulu, HI 968141851350144
- Simon Kim, MDHonolulu, HI 968141194792333
- Youngkyo Kim, MDHonolulu, HI 968141164476529
- Paul Kim, M.D.Honolulu, HI 968141407896640
- Mark Kuge, M.D.Honolulu, HI 968141093772261
- Carlos Lam, M.D.Honolulu, HI 968141366481590
Common questions
What is Keiichi Kobayashi, M.D.'s NPI number?
Keiichi Kobayashi, M.D.'s National Provider Identifier (NPI) is 1134150089, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Keiichi Kobayashi, M.D. located?
The NPPES record lists a practice address at 1441 Kapiolani Blvd. #2000, Honolulu, HI, 96814. Phone: (808) 945-3719. Providers update this record themselves, so call before visiting.
How can I verify Keiichi Kobayashi, M.D.'s license?
NPPES lists Hawaii license number 7904, 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 Keiichi Kobayashi, M.D. prescribe under Medicare Part D?
In 2024, Keiichi Kobayashi, M.D. had 4,049 Medicare Part D claims for 468 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.