DR. AARON G. M. CHOY MD
NPI 1639380918
Internal Medicine in Honolulu, HI

NPI Status: Active since May 25, 2007

Contact Information

2828 PAA ST
HONOLULU, HI
ZIP 96819
Phone: (808) 432-5770

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  • Individual
  • Male
  • Years of Experience 22
  • Internal Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About AARON CHOY

This page provides the complete NPI Profile along with additional information for Aaron Choy, an internist established in Honolulu, Hawaii with a medical specialization in Internal Medicine and more than 22 years of experience. He graduated from University Of Hawaii John A. Burns School Of Medicine in 2004. The healthcare provider is registered in the NPI registry with number 1639380918 assigned on May 2007. The practitioner's primary taxonomy code is 207R00000X with license number MD-14355 (HI). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI
1639380918
Provider Name
DR. AARON G. M. CHOY MD
Gender
Male
Entity Type
Individual
Location Address
2828 PAA ST HONOLULU, HI 96819
Location Phone
(808) 432-5770
Mailing Address
2828 PAA ST HONOLULU, HI 96819
Mailing Phone
(808) 432-5770
Medical School Name
UNIVERSITY OF HAWAII JOHN A. BURNS SCHOOL OF MEDICINE
Graduation Year
2004
Is Sole Proprietor?
No
Enumeration Date
05-25-2007
Last Update Date
06-11-2021
Code Navigator

An internist like Aaron Choy is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Internal Medicine

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
License No.
MD-14355
License State
HI
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

MDR4584 (HI)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • KP HI Bronze 6000/65 Plus CAM - HMO
  • KP HI Gold 0/40 Plus CAM - HMO
  • KP HI Gold 1000 Ded/250 Rx Ded - HMO
  • KP HI Platinum 0/5 Plus CAM - HMO
  • KP HI Silver 3000 Ded/600 Rx Ded Plus CAM - HMO
  • KP HI Silver 4000 Ded/600 Rx Ded - HMO
  • KP HI Standard Bronze 7500/50 - HMO
  • KP HI Standard Gold 1500/30 - HMO
  • KP HI Standard Platinum 0/10 - HMO
  • KP HI Standard Silver 5000/40 - HMO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
00B0272084OTHER (01)HMSA
613621-04MEDICAID (05)HI 

Medicare Participation & PECOS Enrollment Status

Aaron Choy is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Aaron Choy is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 5395824908

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20080508000064

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Adm sarscv2 30mcg trs-sucr b

This service involves the administration of a 30mcg dose of the SARS-CoV-2 vaccine, which helps protect against COVID-19. The 'trs-sucr b' indicates it's stabilized with sugars for effectiveness. It's a crucial step in maintaining your health during the pandemic.

This service was performed 11 times for 11 patients

Administration of influenza virus vaccine

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.

This service was performed 23 times for 23 patients

Established patient office or other outpatient visit, 30-39 minutes

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.

This service was performed 25 times for 22 patients

Fee covid-19 vac 13 res

The "Fee Covid-19 Vac 13 Res" service refers to a charge for the 13th dose of the Covid-19 vaccine, typically for individuals requiring additional doses due to specific health conditions. It's crucial to follow your healthcare provider's advice for your health safety.

This service was performed 14 times for 14 patients

Fee covid-19 vac 14 res

The "Fee covid-19 vac 14 res" refers to a charge for a specific service related to the COVID-19 vaccine. This could be for administering the vaccine or related care. It's crucial to get vaccinated to protect against the virus. The fee ensures quality service.

This service was performed 12 times for 12 patients

Influenza vaccine split virus, preservative free

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.

This service was performed 21 times for 21 patients

Telephone medical discussion with physician, 5-10 minutes

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

This service was performed 14 times for 12 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $34.17 for a new patient copayment and $26.41 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 96819 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99204

  • Average New Patient Price $136.68
  • Minimum New Patient Price $60.53
  • Maximum New Patient Price $180.05
  • Average New Patient Copayment $34.17
  • Minimum New Patient Copayment $15.13
  • Maximum New Patient Copayment $45.01

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $105.65
  • Minimum Established Patient Price $20.09
  • Maximum Established Patient Price $147.56
  • Average Established Patient Copayment $26.41
  • Minimum Established Patient Copayment $5.02
  • Maximum Established Patient Copayment $36.89

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Aaron Choy is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
KAISER FOUNDATION HOSPITAL3288 MOANALUA RD
HONOLULU, HI 96819
(808) 432-0000Acute Care Hospitals

Reviews for DR. AARON G. M. CHOY MD

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1639380918
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
266968092
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 6 + 6 + 9 + 6 + 8 + 0 + 9 + 2 + 24 = 72
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
80 - 72 = 88

The NPI number 1639380918 is valid because the calculated check digit 8 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1154374601 CATHERINE M. COLLADO OT
Individual
Occupational Therapist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5848
1093768079 CHERI TERANISHI-HASHIMOTO MS, MSPT, DPT, CLT
Individual
Physical Therapist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5888
1023061942MS. WENDY K. ARUGA-GOTO OT
Individual
Occupational Therapist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5888
1245284488 KATHLEEN N. TAIRA OT
Individual
Occupational Therapist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5888
1518911916 DEREK CHEE
Individual
Physical Therapist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5878
1689621674 DENNIS W BOULWARE MD
Individual
Internal Medicine (Rheumatology)2828 PAA ST
HONOLULU, HI 96819
(808) 432-5770
1629015615MR. REYN A. HATA PT
Individual
Physical Therapist2828 PAA ST
HONOLULU, HI 96819
(808) 432-8546
1497793228 DEBRA KUBOTA
Individual
Physical Therapist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5842
1902910128 MARC T. IYOMASA PT
Individual
Physical Therapist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5888
1073624250 KEVIN T. LEE PT
Individual
Physical Therapist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5888
1194825075DR. MICHAEL E. CHAFFIN MD
Individual
Internal Medicine2828 PAA ST
HONOLULU, HI 96819
(808) 432-5859
1902907058DR. JAMES MCKOY MD
Individual
Internal Medicine (Rheumatology)2828 PAA ST
HONOLULU, HI 96819
(808) 432-7450
1265526685 LORI M. INOUYE-YAMASHITA MD
Individual
Obstetrics & Gynecology2828 PAA ST
HONOLULU, HI 96819
(808) 432-5770
1437244878 MARY T. GREULICK MD
Individual
Internal Medicine2828 PAA ST
HONOLULU, HI 96819
(808) 432-5770
1558442004DR. PAMELA K. MATSUURA MD
Individual
Pediatrics2828 PAA ST
HONOLULU, HI 96819
(808) 432-5770
1386725844DR. COLLETTE R. P. OKUBO MD
Individual
Obstetrics & Gynecology2828 PAA ST
HONOLULU, HI 96819
(808) 432-5770
1295817286 LYNN E. I. MAURER NP
Individual
Nurse Practitioner2828 PAA ST
HONOLULU, HI 96819
(808) 432-5770
1528137999 JUDITH A. MULLEN CNS, CDE
Individual
Clinical Nurse Specialist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5831
1457408049 PAULETTE L NAKAMURA CNS
Individual
Clinical Nurse Specialist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5770
1104977396MR. EGBERT KWOK RPH
Individual
Pharmacist2828 PAA ST
HONOLULU, HI 96819
(808) 432-5760

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1639380918, enumerated in the NPI registry as an "individual" on May 25, 2007

The provider is located at 2828 Paa St Honolulu, Hi 96819 and the phone number is (808) 432-5770

The provider's speciality is Internal Medicine with taxonomy code 207R00000X

The provider has more than 22 years of experience. He graduated from University Of Hawaii John A. Burns School Of Medicine in 2004.

The provider might be accepting Accepts: Kaiser Permanente, Medicare and Medicaid. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

Medicare beneficiaries should expect a typical cost of $136.68 with an average copayment of $34.17 for new patient appointments. Established patients should expect a typical charge of $105.65 and an average copayment of 26.41. Please review your insurance plan or contact the provider directly to determine your specific costs.

The most common procedures or services performed by this practitioner are: Adm sarscv2 30mcg trs-sucr b, Administration of influenza virus vaccine, Established patient office or other outpatient visit, 30-39 minutes, Fee covid-19 vac 13 res, Fee covid-19 vac 14 res, Influenza vaccine split virus, preservative free and Telephone medical discussion with physician, 5-10 minutes.

The practitioner is affiliated to the following hospital(s): KAISER FOUNDATION HOSPITAL. Hospital affiliations are identified through self-reporting data and service claims based on the place of service.

This NPI record was last updated on May 25, 2007. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.