Doctor profile · Federal record

Dr. Cass Nakasone, M.D.

Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Honolulu, HI

  • NPI 1316011091
  • Accepts Medicare
  • MIPS 86.2 / 100 · 2023
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
888 S King St
Honolulu, HI 968133009
(808) 522-4000
fax (808) 522-3204

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
October 8, 2010
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207X00000X — NUCC code
State license (1)
Hawaii #MD-13396
Medicaid
HI #576308 01

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1316011091. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
416
Distinct HCPCS
8
Medicare allowed
$293,765
HCPCS Description Services Patients Avg allowed
20985 Computer-assisted surgery for muscle and bone procedure 112 102 $145
27447 Replacement of knee joint, both sides of knee 76 76 $1,522
27130 Replacement of thigh bone and hip joint with prosthesis 70 69 $1,426
99213 Established patient office or other outpatient visit, 20-29 minutes 57 54 $68
27446 Replacement of knee joint on side of knee 39 38 $1,288
99204 New patient office or other outpatient visit, 45-59 minutes 33 33 $133
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 17 17 $133
99214 Established patient office or other outpatient visit, 30-39 minutes 12 12 $100

In context: peer comparison

Among 15 peers in Honolulu Orthopaedic Surgery Physician, average services per provider: 99. This provider delivers 4.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$127,687
Transactions
51
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Ortho Development Corporation 37 $119,083.23
Encore Medical, Lp 2 $4,585.00
Orthalign INC 9 $3,653.05
Next Science LLC 1 $245.45
Kinamed, INC. 1 $70.43
Pacira Pharmaceuticals Incorporated 1 $49.50

By nature of payment

Royalty or License
$93,440
Consulting Fee
$31,835
Food and Beverage
$1,958
Travel and Lodging
$453

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
14
Patients
0
Total drug cost
$21
Drug Type Claims Patients Total cost
Amoxicillin Generic 14 0 $21

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Cass Nakasone's medical specialty?
Dr. Cass Nakasone practices Orthopaedic Surgery Physician in Honolulu, HI.
Where does Dr. Cass Nakasone practice?
Dr. Cass Nakasone practices at 888 S King St, Honolulu, HI 968133009. Office phone: 8085224000.
What is Dr. Cass Nakasone's NPI?
Dr. Cass Nakasone's National Provider Identifier (NPI) is 1316011091, issued by NPPES.
Does Dr. Cass Nakasone accept Medicare assignment?
Yes. Dr. Cass Nakasone accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cass Nakasone commonly perform?
Top Medicare-reported procedures in 2023: Computer-assisted surgery for muscle and bone procedure (HCPCS 20985); Replacement of knee joint, both sides of knee (HCPCS 27447); Replacement of thigh bone and hip joint with prosthesis (HCPCS 27130). Source: CMS Medicare Physician & Other Practitioners file.