Cass K. Nakasone, M.D.
Orthopaedic Surgery Physician · Honolulu, HI
Cass K. Nakasone, M.D. is an orthopaedic surgery physician with a practice address in Honolulu, Hawaii, and NPI 1316011091, issued on Nov 17, 2006. Check the license (Hawaii MD-13396, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Cass K. Nakasone
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- MD-13396 HI
Self-reported in NPPES; status is on the state search - Practice location
- 888 S King St, Honolulu, HI 96813
- Phone
- (808) 522-4000
- Enumerated
- Nov 17, 2006
- Record last updated
- Oct 8, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (808) 522-3204
- Medicaid ID
- 576308 01 HI
- Medicare enrollment
- Enrolled (PECOS I20051031000477); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 107 in Hawaii → Look up another NPI →
Also registered at 888 S King St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ayman Abdul-Ghani, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1548449218
- Cedric Akau, M.D.Physical Medicine & Rehabilitation Physician1437254034
- Christopher Apostolides, PAPhysician Assistant1083655153
- Stephen Arnold, M.D.Internal Medicine Physician1598859928
- Swaty Arora, MDHematology & Oncology Physician1194037432
- Whitney Reigh Asao, OTD, OTR/LOccupational Therapist1568082766
Verify Cass K. Nakasone in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-13396Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
35 Medicare Part D claims for 18 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 86.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $127,686.66
51 payments; by number, the most common kind was royalty or license; the largest payer was Ortho Development Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 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.
One hospital affiliation
- Straub Clinic And HospitalHonolulu, HI · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Cass K. Nakasone among 107 orthopaedic surgery physician records in Hawaii
Cass K. Nakasone, M.D. is one of 107 orthopaedic surgery physician records with a practice address in Hawaii. 73% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1998 · median 2005 among the 61 with a school on file
- Record last updated2010 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Hawaii
There are 107 orthopaedic surgery physician records in Hawaii.
All 107 in Hawaii → Every provider in Honolulu → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Spencer Chang, M.D.Honolulu, HI 968131568536233
- Sam ChenHonolulu, HI 968131932377900
- Kevin Christensen, MDHonolulu, HI 968131801856703
- Scott Crawford, M.D.Honolulu, HI 968131245435676
- Thomas Kane, MDHonolulu, HI 968131144332123
- Clifford Lau, MDHonolulu, HI 968131114026515
- Lorrin Lee, M.D.Honolulu, HI 968131700081098
- Morris Mitsunaga, MDHonolulu, HI 968131568558583
Common questions
What is Cass K. Nakasone, M.D.'s NPI number?
Cass K. Nakasone, M.D.'s National Provider Identifier (NPI) is 1316011091, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cass K. Nakasone, M.D. located?
The NPPES record lists a practice address at 888 S King St, Honolulu, HI, 96813. Phone: (808) 522-4000. Providers update this record themselves, so call before visiting.
How can I verify Cass K. Nakasone, M.D.'s license?
NPPES lists Hawaii license number MD-13396, 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 Cass K. Nakasone, M.D. prescribe under Medicare Part D?
In 2024, Cass K. Nakasone, M.D. had 35 Medicare Part D claims for 18 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Cass K. Nakasone, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.