DR. CASS K. NAKASONE M.D.
NPI 1316011091
Orthopaedic Surgery in Honolulu, HI

Active since November 17, 2006PECOS EnrolledAccepts Medicare Assignment
86.2/100
CMS Quality Rating
888 S KING ST, HONOLULU, HI 96813(808) 522-4000(808) 522-3204 Get Directions Write a Review

NPPES record last updated: October 8, 2010. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Cass K. Nakasone M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CASS K. NAKASONE M.D. (NPI 1316011091) is an individual orthopaedic surgery provider in Honolulu, Hawaii, licensed in Hawaii (MD-13396) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with The Queens Medical Center, and is a graduate of University Of Hawaii John A. Burns School Of Medicine (1998).

NPPES Registry Identity

NPI1316011091
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameDR. CASS K. NAKASONECredential: M.D.
Location Address888 S KING STHonolulu, HI 96813-3009
Mailing Address888 S King St, Straub Bone And Joint CenterHonolulu, HI 96813-3009 · (808) 522-4000 · Fax (808) 522-3204
Fax(808) 522-3204
Sole ProprietorNo
Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 1998
Enumeration DateNovember 17, 2006
Last NPPES UpdateOctober 8, 2010
NPI 1316011091 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License Licensed in HI · MD-13396
Definition

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

888 S KING ST, Honolulu, HI 96813

Other Identifiers 5

Medicare UPINI44622HI
Medicare ID-Type Unspecified100982HI
Medicaid576308 01HI
Other0000255877HI · Hmsa
Other1852444HI · Uha

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Cass K. Nakasone M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8628095544
PECOS Enrollment IDI20051031000477
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
94 services88 patients
Computer-assisted surgery for muscle and bone procedure 20985
Computer-assisted surgery for muscle and bone procedures involves using a computer to aid in planning and performing surgery. This technology helps increase precision, reduce invasiveness, and improve outcomes. It's commonly used in orthopedic surgeries like joint replacements.
61 services54 patients
Replacement of thigh bone and hip joint with prosthesis 27130
This procedure, known as hip arthroplasty, involves replacing your damaged thigh bone and hip joint with artificial parts, called a prosthesis. It helps relieve pain, improve mobility, and enhance your quality of life.
60 services59 patients
Replacement of knee joint, both sides of knee 27447
A bilateral knee joint replacement is a procedure where the damaged parts of both your knee joints are replaced with artificial parts. It aims to relieve pain and improve mobility. The process involves a surgical operation under anesthesia.
59 services58 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
58 services58 patients
Replacement of knee joint on side of knee 27446
A knee joint replacement on one side, also known as unicompartmental knee replacement, is a surgical procedure where damaged parts of the knee joint are replaced with artificial parts. This helps to reduce pain and improve mobility. It's typically done under general anesthesia.
35 services35 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

The Queens Medical Center

Acute Care Hospitals · Honolulu, HI
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number120001
Location1301 Punchbowl StHonolulu, HI 96813 · Honolulu County
Emergency services Birthing friendly

Adventist Health Castle

Acute Care Hospitals · Kailua, HI
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number120006
Location640 Ulukahiki StKailua, HI 96734 · Honolulu County
Emergency services Birthing friendly

Straub Clinic And Hospital

Acute Care Hospitals · Honolulu, HI
4/5 CMS rating
OwnershipProprietary
CMS Certification Number120022
Location888 S King StreetHonolulu, HI 96813 · Honolulu County
Emergency services

Pali Momi Medical Center

Acute Care Hospitals · Aiea, HI
4/5 CMS rating
OwnershipProprietary
CMS Certification Number120026
Location98-1079 Moanalua RoadAiea, HI 96701 · Honolulu County
Emergency services

North Hawaii Community Hospital, Inc

Acute Care Hospitals · Kamuela, HI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number120028
Location67 1125 Mamalahoa HighwayKamuela, HI 96743 · Hawaii County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96813 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$92.50 typical visit price
range $60.53 – $180.05
Typical copayment $23.12 (range $15.13 – $45.01)
Most-billed visit code 99203
Established Patient
$74.92 typical visit price
range $20.09 – $147.56
Typical copayment $18.73 (range $5.02 – $36.89)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

86.2/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality80.28
Promoting Interoperability100
Improvement Activities40
Cost73.72

Reported Quality Measures

Risk-standardized complication rate (RSCR) following elective primary total hip arthroplasty (THA) and/or total knee arthroplasty (TKA) for Merit-based Incentive Payment System (MIPS)
Lower rates are better for this measure.
0.03%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Walker, folding, wheeled, adjustable or fixed height E0143
DME-Other DME · category DE000N
1 supplier25 claims25 services$43.13 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
888 S KING ST, DERMATOLOGY DEPARTMENT
HONOLULU, HI 96813
Internal Medicine (Critical Care Medicine)
888 S KING ST
HONOLULU, HI 96813
Psychiatry & Neurology (Neurology)
888 S KING ST
HONOLULU, HI 96813
Dermatology
888 S KING ST
HONOLULU, HI 96813
Emergency Medicine
888 S KING ST
HONOLULU, HI 96813
Physical Therapist
888 S KING ST
HONOLULU, HI 96813
Surgery (Vascular Surgery)
888 S KING ST
HONOLULU, HI 96813
Physical Therapist
888 S KING ST
HONOLULU, HI 96813

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cass Nakasone's NPI number?

The NPI number for Cass Nakasone is 1316011091. It was assigned to this individual provider in the NPPES registry on November 17, 2006.

Where is Cass Nakasone located?

Cass Nakasone practices at 888 S King St, Honolulu, HI 96813. The listed phone number is (808) 522-4000.

What is Cass Nakasone's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

Is Cass Nakasone enrolled in Medicare?

Yes. Cass Nakasone is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Cass Nakasone accept?

Health plans from HMSA list Cass Nakasone as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Cass Nakasone affiliated with any hospitals?

According to CMS data, Cass Nakasone is affiliated with The Queens Medical Center, Adventist Health Castle, Straub Clinic And Hospital, Pali Momi Medical Center and North Hawaii Community Hospital, Inc.

When was this NPI record last updated?

The NPPES record for Cass Nakasone was last updated on October 8, 2010. NPI Profile syncs with the weekly NPPES data releases published by CMS.