Ryan Otsuka, M.D.
Ophthalmology Physician · Honolulu, HI
Ryan Otsuka, M.D. is an ophthalmology physician with a practice address in Honolulu, Hawaii, and NPI 1962765826, issued on Jun 15, 2012. Check the license (Hawaii 19224, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Ryan Otsuka
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 19224 HI
Self-reported in NPPES; status is on the state search - Practice location
- 321 N Kuakini St Ste 811, Honolulu, HI 96817
- Phone
- (808) 531-2731
- Enumerated
- Jun 15, 2012
- Record last updated
- Jul 21, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170908001894); may accept Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 128 in Hawaii → Look up another NPI →
Verify Ryan Otsuka in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license 19224Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average ophthalmology physician in 2024
112 Medicare Part D claims for 24 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.
Most prescribed
- Latanoprost38 claims
- Dorzolamide-Timolol24 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: $474.22
27 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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.
Ryan Otsuka among 128 ophthalmology physician records in Hawaii
Ryan Otsuka, M.D. is one of 128 ophthalmology physician records with a practice address in Hawaii. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 88% of them.
- NPI issued2012 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2012 · median 1995 among the 89 with a school on file
- Record last updated2017 · 85% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Hawaii
There are 128 ophthalmology physician records in Hawaii.
All 128 in Hawaii → Every provider in Honolulu → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Margaret Cheung, M.D.Honolulu, HI 968171336217637
- Candace Furubayashi, M.D.Honolulu, HI 968171467545293
- Worldster Lee, M DHonolulu, HI 968171417048018
- Brandon Lee, MDHonolulu, HI 968171801042007
- Thomas Maeda, MDHonolulu, HI 968171649267063
- John Olkowski, M.D.Honolulu, HI 968171396897427
- Gilbert Yamamoto, MDHonolulu, HI 968171316931314
- Jason Tokunaga, MDHonolulu, HI 968161558463794
Common questions
What is Ryan Otsuka, M.D.'s NPI number?
Ryan Otsuka, M.D.'s National Provider Identifier (NPI) is 1962765826, issued on Jun 15, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Otsuka, M.D. located?
The NPPES record lists a practice address at 321 N Kuakini St Ste 811, Honolulu, HI, 96817. Phone: (808) 531-2731. Providers update this record themselves, so call before visiting.
How can I verify Ryan Otsuka, M.D.'s license?
NPPES lists Hawaii license number 19224, 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 Ryan Otsuka, M.D. prescribe under Medicare Part D?
In 2024, Ryan Otsuka, M.D. had 112 Medicare Part D claims for 24 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.