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 this city , 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