Doctor profile · Federal record

Dr. Aaron Hoo

Internal Medicine Physician (CMS: Internal Medicine) · General Practice Physician · Honolulu, HI

  • NPI 1558771840
  • Accepts Medicare
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
550 S Beretania St Ste 300
Honolulu, HI 96813
(808) 686-4620
fax (808) 686-2125

Credentials & registration

NPPES · NUCC
NPI registered
May 2014 — 12 yrs on file
Profile last updated
March 30, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Hawaii #MD-19022 · Hawaii #MD 19022

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558771840. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
367
Distinct HCPCS
4
Medicare allowed
$37,421
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 330 155 $103
90662 Influenza vaccine split virus, preservative free 13 13 $72
G0008 Administration of influenza virus vaccine 13 13 $32
99204 New patient office or other outpatient visit, 45-59 minutes 11 11 $177

In context: peer comparison

Among 114 peers in Honolulu Internal Medicine Physician, average services per provider: 127. This provider delivers 2.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,561
Patients
453
Total drug cost
$105,495
Drug Type Claims Patients Total cost
Losartan Potassium Generic 238 61 $5,661
Amlodipine Besylate Generic 230 70 $3,549
Atorvastatin Calcium Generic 228 63 $5,617
Rosuvastatin Calcium Generic 169 49 $10,065
Levothyroxine Sodium Generic 114 32 $1,857
Pravastatin Sodium Generic 97 26 $1,989
Furosemide Generic 75 21 $393
Omeprazole Generic 73 27 $1,405
Metformin Hcl Generic 57 15 $1,222
Metoprolol Succinate Generic 56 13 $1,481

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Aaron Hoo's medical specialty?
Dr. Aaron Hoo practices Internal Medicine Physician in Honolulu, HI.
Where does Dr. Aaron Hoo practice?
Dr. Aaron Hoo practices at 550 S Beretania St Ste 300, Honolulu, HI 96813. Office phone: 8086864620.
What is Dr. Aaron Hoo's NPI?
Dr. Aaron Hoo's National Provider Identifier (NPI) is 1558771840, issued by NPPES.
Does Dr. Aaron Hoo accept Medicare assignment?
Yes. Dr. Aaron Hoo accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Aaron Hoo commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Influenza vaccine split virus, preservative free (HCPCS 90662); Administration of influenza virus vaccine (HCPCS G0008). Source: CMS Medicare Physician & Other Practitioners file.