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MR. AARON JUSTIN SMALL M.D.
NPI 1407015399
Internal Medicine - Gastroenterology in Aiea, HI

Active since June 05, 2008PECOS EnrolledAccepts Medicare Assignment
98-1079 MOANALUA RD, AIEA, HI 96701(808) 486-6000 Get Directions Write a Review

NPPES record last updated: February 14, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Feb 14, 2022, Jan 7, 2021, Sep 30, 2015 (3 updates tracked since 2015).

About Mr. Aaron Justin Small M.d. NPPES

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

MR. AARON JUSTIN SMALL M.D. (NPI 1407015399) is an individual gastroenterology provider in Aiea, Hawaii, licensed in Hawaii (MD-18102) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Pali Momi Medical Center, and maintains a secondary practice location in Kapolei.

NPPES Registry Identity

NPI1407015399
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameMR. AARON JUSTIN SMALLCredential: M.D.
Location Address98-1079 MOANALUA RDAiea, HI 96701-4713
Mailing Address95-390 Kuahelani Ave # 3ac-131Mililani, HI 96789-1192 · (808) 468-4145 · Fax (888) 859-0148
Phone(808) 486-6000
Sole ProprietorYes
Medical School CMSMayo Medical SchoolGraduated 2008
Enumeration DateJune 5, 2008
Last NPPES UpdateFebruary 14, 20223 updates tracked since enumeration
NPPES CertifiedJanuary 8, 2021
✔ NPI 1407015399 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in HI · MD-18102
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
98-1079 MOANALUA RD, Aiea, HI 96701
Open in Google Maps ↗

Secondary Practice Location 1

Location 1590 Farrington Hwy Unit 526AKapolei, HI 96707-2034 · Phone (808) 468-4145 · Fax (888) 859-0148

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

Mr. Aaron Justin Small 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 ID446475107
PECOS Enrollment IDI20150527002063
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

3

Medicare enrollment records show Aaron Small reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Aaron J Small MD LLC
Same address
Gastroenterology
98-1079 MOANALUA RD
Aiea, HI 96701
  • Reassigned Medicare billing, Hawaii enrollment
NPI 1912440090 (808) 486-6000
Hawaii Permanente Medical Group Inc
2.9 mi
Health Maintenance Organization
3288 MOANALUA RD
Honolulu, HI 96819
  • Reassigned Medicare billing, Hawaii enrollment
  • 1,187 clinicians in this Medicare group
NPI 1710945969 (808) 432-0000
Mel A Ona M D Incorporated
9.7 mi
Gastroenterology
590 FARRINGTON HWY UNIT 525
Kapolei, HI 96707
  • Reassigned Medicare billing, Hawaii enrollment
  • 7 clinicians in this Medicare group
NPI 1710459300 (808) 762-2311

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 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.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
39 services39 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
33 services32 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
32 services31 patients
Review by radiologist of image from tube placement into bile duct using an endoscope 74328
This procedure involves a specialist, called a radiologist, examining an image taken during a tube placement into your bile duct. The tube is inserted with the help of a tool called an endoscope. This allows the doctor to check for any issues or abnormalities in your bile duct.
26 services18 patients
Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 43264
This procedure, called an endoscopic retrograde cholangiopancreatography (ERCP), involves using a flexible tube with a camera (endoscope) to locate and remove stones or debris from your bile or pancreatic duct. It's a non-surgical method to clear the ducts, enhancing your digestive health.
22 services19 patients
Insertion of stent into pancreatic or bile duct using a flexible endoscope 43274
This procedure involves the placement of a tiny tube, known as a stent, into your pancreatic or bile duct. A flexible endoscope, a long, thin instrument with a light and camera, is used. It aids in relieving blockages and improving flow in these ducts.
21 services14 patients

Hospital Affiliations CMS Care Compare

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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96701 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

Appropriate Follow-Up Interval for Normal Colonoscopy in Average Risk Patients
Percentage of patients aged 50 to 75 years of age receiving a screening colonoscopy without biopsy or polypectomy who had a recommended follow-up interval of at least 10 years for repeat colonoscopy documented in their colonoscopy report
100%59 patients
Appropriate indication for colonoscopy
Percentage of colonoscopy procedures performed for an indication that is included in a published standard list of appropriate indications and the indication is documented
87%597 patients4/55-star benchmark: 99%
Appropriate management of anticoagulation in the peri-procedural period rate - EGD
Percentage of patients undergoing an EGD on an anti-platelet agent or an anticoagulant who leave the endoscopy unit with instructions for management of this medication
100%77 patients5/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
92%289 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.
98%234 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.
60%205 patients3/55-star benchmark: 99%
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…
66%206 patients3/55-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…
0%206 patients1/55-star benchmark: 59%
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 20

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

RICHARD KLINE DO
Hospitalist
98-1079 MOANALUA RD
AIEA, HI 96701
Honolulu County (808) 486-6000
DR. DAWN A. MIURA M.D.
Internal Medicine
98-1079 MOANALUA RD, SUITE 350
AIEA, HI 96701
Honolulu County (808) 487-2277
DR. MICHAEL WAYNE CHAN M.D.
Internal Medicine (Cardiovascular Disease)
98-1079 MOANALUA RD, SUITE 655
AIEA, HI 96701
Honolulu County (808) 486-6200
ROBERT CANONICO DO
Emergency Medicine
98-1079 MOANALUA RD
AIEA, HI 96701
Honolulu County (330) 493-4443
MCKENZIE ROBLEDO RN, BSN
Registered Nurse
98-1079 MOANALUA RD
AIEA, HI 96701
Honolulu County (808) 485-4437
PALI MOMI MEDICAL CENTER
General Acute Care Hospital
98-1079 MOANALUA RD
AIEA, HI 96701
Honolulu County (808) 486-6000
SHAYNE MARK CASTANERA M.D.
Internal Medicine
98-1079 MOANALUA RD
AIEA, HI 96701
Honolulu County (808) 486-6000
KY LE LLC
Family Medicine
98-1079 MOANALUA RD
AIEA, HI 96701
Honolulu County (808) 536-0300

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 Aaron Small's NPI number?

The NPI number for Aaron Small is 1407015399. It was assigned to this individual provider in the NPPES registry on June 5, 2008.

Where is Aaron Small located?

Aaron Small practices at 98-1079 Moanalua Rd, Aiea, HI 96701. The listed phone number is (808) 486-6000.

What is Aaron Small's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Aaron Small enrolled in Medicare?

Yes. Aaron Small 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.

Which organizations bill Medicare for Aaron Small's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Small reassigns Medicare benefits to 3 organizations: Aaron J Small MD LLC (Aiea, HI), Hawaii Permanente Medical Group Inc (Honolulu, HI) and Mel A Ona M D Incorporated (Kapolei, HI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Aaron Small's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Small accept?

Health plans from HMSA list Aaron Small 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 Aaron Small affiliated with any hospitals?

According to CMS data, Aaron Small is affiliated with Pali Momi Medical Center.

When was this NPI record last updated?

The NPPES record for Aaron Small was last updated on February 14, 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.