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ROYCE SHIMAMOTO M.D.
NPI 1457469470
Internal Medicine in Honolulu, HI

Active since August 29, 2006PECOS EnrolledAccepts Medicare Assignment
347 N KUAKINI ST, HONOLULU, HI 96817(808) 221-7083 Get Directions Write a Review

NPPES record last updated: April 16, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Royce Shimamoto M.d. NPPES

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

ROYCE SHIMAMOTO M.D. (NPI 1457469470) is an individual internal medicine provider in Honolulu, Hawaii, licensed in Hawaii (12570) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Kuakini Medical Center, and is a graduate of University Of Hawaii John A. Burns School Of Medicine (1995).

NPPES Registry Identity

NPI1457469470
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameROYCE SHIMAMOTOCredential: M.D.
Location Address347 N KUAKINI STHonolulu, HI 96817-2336
Mailing AddressPo Box 25370Honolulu, HI 96825-0370 · (808) 536-0300 · Fax (808) 536-0320
Phone(808) 221-7083
Sole ProprietorYes
Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 1995
Enumeration DateAugust 29, 2006
Last NPPES UpdateApril 16, 2022
NPPES CertifiedApril 16, 2022
✔ NPI 1457469470 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in HI · 12570
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
347 N KUAKINI ST, Honolulu, HI 96817
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Other Identifiers 1

Medicaid53526304HI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMSA.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

Royce Shimamoto 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 ID1850331133
PECOS Enrollment IDI20050505000769
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 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
803 services161 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
110 services106 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
90 services80 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
53 services26 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
17 services17 patients

Hospital Affiliations CMS Care Compare

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

Kuakini Medical Center

Acute Care Hospitals · Honolulu, HI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number120007
Location347 North Kuakini StreetHonolulu, HI 96817 · Honolulu County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96817 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
$136.68 typical visit price
range $60.53 – $180.05
Typical copayment $34.17 (range $15.13 – $45.01)
Most-billed visit code 99204
Established Patient
$105.65 typical visit price
range $20.09 – $147.56
Typical copayment $26.41 (range $5.02 – $36.89)
Most-billed visit code 99214
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.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%465 patients5/55-star benchmark: 100%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
100%252 patients5/55-star benchmark: 100%
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 3

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

Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630
DME-Other DME · category DE000N
1 supplier12 claims12 services$38.16 avg. paid by Medicare
Heavy duty wheelchair K0006
DME-Wheelchairs · category DD000N
1 supplier12 claims12 services$37.47 avg. paid by Medicare
Elevating leg rests, pair (for use with capped rental wheelchair base) K0195
DME-Wheelchairs · category DD021N
1 supplier12 claims12 services$6.73 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.

DR. INA M VANHEST
Emergency Medicine (Emergency Medical Services)
347 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 547-9593
DR. LAUREN I OKAMOTO MD
Family Medicine
347 N KUAKINI ST, HPM 9
HONOLULU, HI 96817
Honolulu County (808) 523-8461
HOWARD K. ARIMOTO M.D.
Radiology (Diagnostic Radiology)
347 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 522-0190
MAGLINAO MEDICAL MANAGEMENT LLC
General Acute Care Hospital
347 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 536-2236
HILLARY CHUN DPT
Physical Therapist
347 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 547-9700
TITUS SAMUEL DAVID MD
Internal Medicine
347 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 536-2236
ALYSSA TAKATSUKI
Physical Therapist
347 N KUAKINI ST
HONOLULU, HI 96817
Honolulu County (808) 547-9128
TSUNEARI HAYASHI M.D.
Family Medicine
347 N KUAKINI ST, HPM-9
HONOLULU, HI 96817
Honolulu County (808) 523-8461

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 Royce Shimamoto's NPI number?

The NPI number for Royce Shimamoto is 1457469470. It was assigned to this individual provider in the NPPES registry on August 29, 2006.

Where is Royce Shimamoto located?

Royce Shimamoto practices at 347 N Kuakini St, Honolulu, HI 96817. The listed phone number is (808) 221-7083.

What is Royce Shimamoto's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Royce Shimamoto enrolled in Medicare?

Yes. Royce Shimamoto 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 Royce Shimamoto accept?

Health plans from HMSA list Royce Shimamoto 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 Royce Shimamoto affiliated with any hospitals?

According to CMS data, Royce Shimamoto is affiliated with Kuakini Medical Center.

When was this NPI record last updated?

The NPPES record for Royce Shimamoto was last updated on April 16, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.