AARON HOO
NPI 1558771840
Internal Medicine in Honolulu, HI

Q: What is Aaron Hoo's NPI number?

The NPI number for Aaron Hoo is 1558771840. It was assigned to this individual provider in the NPPES registry on May 7, 2014.

Q: What is Aaron Hoo's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Aaron Hoo was last updated on March 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 May 07, 2014PECOS EnrolledAccepts Medicare Assignment

550 S BERETANIA ST STE 300, HONOLULU, HI 96813(808) 686-4620(808) 686-2125 Get Directions Write a Review

NPPES record last updated: March 30, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 30, 2023, Apr 12, 2017, Mar 22, 2017 (3 updates tracked since 2017).

On this page

About Aaron Hoo NPPES

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

AARON HOO (NPI 1558771840) is an individual internal medicine provider in Honolulu, Hawaii, licensed in Hawaii (MD-19022) and active in the NPI registry since May 2014. 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 (2014).

NPPES Registry Identity

NPI1558771840

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameAARON HOO

Location Address550 S BERETANIA ST STE 300Honolulu, HI 96813

Mailing Address550 S Beretania St Ste 300Honolulu, HI 96813-2423 · (808) 686-4620 · Fax (808) 686-2125

Phone(808) 686-4620

Fax(808) 686-2125

Sole ProprietorNo

Medical School CMSUniversity Of Hawaii John A. Burns School Of MedicineGraduated 2014

Enumeration DateMay 7, 2014

Last NPPES UpdateMarch 30, 20233 updates tracked since enumeration

NPPES CertifiedMarch 30, 2023

✔ NPI 1558771840 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in HI · MD-19022

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.

Also ListedGeneral PracticeTaxonomy 208D00000X · License MD 19022 (HI)

550 S BERETANIA ST STE 300, Honolulu, HI 96813

Open in Google Maps ↗

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Aaron Hoo 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 ID1951670199

PECOS Enrollment IDI20170703001532

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.

Medicare Billing Reassignments

Medicare enrollment records show Aaron Hoo reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Queens University Medical Group

0.1 mi

Multi-Specialty

1301 PUNCHBOWL ST
Honolulu, HI 96813

Reassigned Medicare billing, Hawaii enrollment
859 clinicians in this Medicare group

NPI 1891441382 (808) 691-1000

The Queen's Medical Center

0.1 mi

General Acute Care Hospital

1301 PUNCHBOWL ST
Honolulu, HI 96813

Reassigned Medicare billing, Hawaii enrollment
Medicare enrollment name: The Queens Medical Center
809 clinicians in this Medicare group

NPI 1487693586 (808) 538-9011

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

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.

331 services166 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

25 services25 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

24 services24 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.

12 services12 patients

Hospital Affiliations CMS Care Compare 3

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

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

Kapiolani Medical Center For Women & Children

Childrens · Honolulu, HI

OwnershipVoluntary non-profit - Private

CMS Certification Number123300

Location1319 Punahou StreetHonolulu, HI 96826 · 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

$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.

Referred Medical Equipment & Supplies CMS DME claims 4

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

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

4 suppliers12 claims61 services$14.82 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

4 suppliers14 claims14 services$47.07 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

4 suppliers16 claims90 services$1.87 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

4 suppliers21 claims21 services$28.35 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 5

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

FLORENCE KAN

Internal Medicine