Ken Matsumoto, M.D.
Psychiatry Physician · Honolulu, HI
Ken Matsumoto, M.D. is a psychiatry physician with a practice address in Honolulu, Hawaii, and NPI 1225187222, issued on Jan 9, 2007. Check the license (Hawaii MD-9851, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ken Matsumoto
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD-9851 HI
Self-reported in NPPES; status is on the state search - Practice location
- 1700 Lanakila Ave, Honolulu, HI 96817
- Phone
- (808) 832-3823
- Enumerated
- Jan 9, 2007
- Record last updated
- Jun 6, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (808) 832-5850
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 331 in Hawaii → Look up another NPI →
Also registered at 1700 Lanakila Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Evelyn AlicanteClinical Social Worker1669647434
- Cecilia AlvaradoSocial Worker1326192857
- Lori Asada, O.T.Occupational Therapist1942528682
- Antonia Austria, M.D.Psychiatry Physician1184773277
- Brenda Bauer-Smith, PSY.D.Clinical Psychologist1326410556
- Joanne Bautista-Torres, PSY.D.Psychologist1265749832
Verify Ken Matsumoto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-9851Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average psychiatry physician in 2024
1,648 Medicare Part D claims for 86 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Olanzapine282 claims
- Risperidone161 claims
- Clozapine151 claims
- Benztropine Mesylate149 claims
- Divalproex Sodium Er118 claims
- Haloperidol Decanoate115 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.
Ken Matsumoto among 331 psychiatry physician records in Hawaii
Ken Matsumoto, M.D. is one of 331 psychiatry physician records with a practice address in Hawaii. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 38% of them.
- NPI issued2007 · 38% of these records are older, 43% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileNo · 33% of these records are
- Record last updated2008 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
175 psychiatry physician records list a practice address in Honolulu
They are 175 of the 12,408 NPPES records with a practice address in Honolulu, and 331 psychiatry physician records in Hawaii.
All 331 in Hawaii → Every provider in Honolulu → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Antonia Austria, M.D.Honolulu, HI 968171184773277
- Taylor BranaHonolulu, HI 968171982134631
- Raymond Davidson, M.D.Honolulu, HI 968171790981884
- Koji Iizuka, M.D.Honolulu, HI 968171811213523
- Gail Ingram, M.D.Honolulu, HI 968171902928302
- Takako Ishimaru-Tseng, MDHonolulu, HI 968171043328511
- Harold McGuffey, M.D.Honolulu, HI 968171598840993
- Denis Mee-Lee, MDHonolulu, HI 968171730132416
Common questions
What is Ken Matsumoto, M.D.'s NPI number?
Ken Matsumoto, M.D.'s National Provider Identifier (NPI) is 1225187222, issued on Jan 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ken Matsumoto, M.D. located?
The NPPES record lists a practice address at 1700 Lanakila Ave, Honolulu, HI, 96817. Phone: (808) 832-3823. Providers update this record themselves, so call before visiting.
How can I verify Ken Matsumoto, M.D.'s license?
NPPES lists Hawaii license number MD-9851, 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 Ken Matsumoto, M.D. prescribe under Medicare Part D?
In 2024, Ken Matsumoto, M.D. had 1,648 Medicare Part D claims for 86 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.