DR. WILLIAM S. LOUI M.D.
NPI 1346217718
Internal Medicine - Hematology & Oncology in Honolulu, HI

Q: What is William Loui's NPI number?

The NPI number for William Loui is 1346217718. It was assigned to this individual provider in the NPPES registry on March 3, 2006.

Q: What is William Loui's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for William Loui was last updated on March 31, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since March 03, 2006PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

1329 LUSITANA ST STE 307, HONOLULU, HI 96813(808) 524-6115(808) 528-1711 Get Directions Write a Review

NPPES record last updated: March 31, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 31, 2021, Jul 18, 2019 (2 updates tracked since 2019).

On this page

About Dr. William S. Loui M.d. NPPES

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

DR. WILLIAM S. LOUI M.D. (NPI 1346217718) is an individual hematology & oncology provider in Honolulu, Hawaii, licensed in Hawaii (MD10912) and active in the NPI registry since March 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 (1989).

NPPES Registry Identity

NPI1346217718

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. WILLIAM S. LOUICredential: M.D.

Location Address1329 LUSITANA ST STE 307Honolulu, HI 96813-2435

Mailing Address640 Ulukahiki StKailua, HI 96734-4454 · (808) 263-5011

Phone(808) 524-6115

Fax(808) 528-1711

Sole ProprietorNo

Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 1989

Enumeration DateMarch 3, 2006

Last NPPES UpdateMarch 31, 20212 updates tracked since enumeration

NPPES CertifiedMarch 31, 2021

✔ NPI 1346217718 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in HI · MD10912

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

1329 LUSITANA ST STE 307, Honolulu, HI 96813

Open in Google Maps ↗

Other Identifiers 2

Other0221218HI · Hmsa

Medicaid49311401HI

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

Dr. William S. Loui 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 ID840372835

PECOS Enrollment IDI20101210000226

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 8

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 moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

770 services306 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

266 services120 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

148 services62 patients

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.

69 services50 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

65 services65 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

35 services18 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

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

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

Kahuku Medical Center

Critical Access Hospitals · Kahuku, HI

OwnershipVoluntary non-profit - Other

CMS Certification Number121304

Location56-117 Pualalea StreetKahuku, HI 96731 · Honolulu County

Emergency services

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

$180.05 typical visit price

range $60.53 – $180.05

Typical copayment $45.01 (range $15.13 – $45.01)

Most-billed visit code 99205

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.

75/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Reported Quality Measures

Breast Cancer Screening

Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer

27%403 patients2/55-star benchmark: 92%

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…

83%725 patients4/55-star benchmark: 100%

Colorectal Cancer Screening

Percentage of adults 50-75 years of age who had appropriate screening for colorectal cancer

37%639 patients2/55-star benchmark: 85%

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.

93%4,595 patients4/55-star benchmark: 100%

Medication Reconciliation

The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.

95%189 patients4/55-star benchmark: 100%

Oncology: Medical and Radiation - Pain Intensity Quantified

Percentage of patient visits, regardless of patient age, with a diagnosis of cancer currently receiving chemotherapy or radiation therapy in which pain intensity is quantified

99%1,224 patients4/55-star benchmark: 100%

Oncology: Medical and Radiation - Plan of Care for Pain

Percentage of visits for patients, regardless of age, with a diagnosis of cancer currently receiving chemotherapy or radiation therapy who report having pain with a documented plan of care to address pain

65%262 patients3/55-star benchmark: 100%

Pain Assessment and Follow-Up

Percentage of visits for patients aged 18 years and older with documentation of a pain assessment using a standardized tool(s) on each visit AND documentation of a follow-up plan when pain is present

86%4,595 patients4/55-star benchmark: 100%

Patient-Specific Education

The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.

9%1,178 patients1/55-star benchmark: 100%

Preventive Care and Screening: Influenza Immunization

Percentage of patients aged 6 months and older seen for a visit between October 1 and March 31 who received an influenza immunization OR who reported previous receipt of an influenza immunization

45%1,044 patients3/55-star benchmark: 88%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user

Patients screenedForUse: 100% · 714 patients

Patients tobacco: 100% · 714 patients

100%34 patients5/55-star benchmark: 98%

Provide Patient Access

At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…

45%1,178 patients2/55-star benchmark: 100%

Secure Messaging

For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…

1%1,178 patients1/55-star benchmark: 79%

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.

Other Providers at the Same Location NPPES 5

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

MICHELLE MARIKO MCHENRY DNP, FNP-BC, APRN-RX

Nurse Practitioner (Family)