Internal Medicine · Honolulu, HI
NPI
1811085400
Since 2006
Specialty
Internal Medicine
Code 207R00000X
Group practices
1
Medicare group memberships
Hospitals
5
Hospital affiliations
321 N. Kuakini St., Suite #201
Honolulu, HI, 96817
Phone (808) 523-8611
Groups this clinician bills Medicare through
Medicare paid, 2024
$53K
783 services
Medicare patients, 2024
285
Average age 77
Drug cost, 2024
$480K
4,567 prescriptions
Company payments, 2025
$134
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Michael Ishioka was code 99213 (office e&m - established), 614 times for 282 patients. In total Michael Ishioka billed 783 services in 10 codes, and Medicare paid $53K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2007-07-08.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99213 Office E&M - Established | Office | 614 | 282 | $58.58 | $36K |
| G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Office | 105 | 105 | $134.69 | $14K |
| 99214 Office E&M - Established | Office | 20 | 18 | $79.20 | $1,584 |
| G0008 Administration of influenza virus vaccine | Office | 16 | 16 | $33.52 | $536 |
| 90653 Vaccine Product | Office | 15 | 15 | $51.50 | $773 |
By year: 2022 $50K for 849 services; 2023 $74K for 976 services; 2024 $53K for 783 services.
Medicare prescription drug claims, 2024
In 2024, the drug Michael Ishioka prescribed most often to Medicare patients was Atorvastatin Calcium, with 781 prescriptions and refills. In total Michael Ishioka wrote 4,567 Medicare prescriptions that cost $480K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Atorvastatin Calcium Generic | 781 | 2,269 | 213 | $25K |
| Simvastatin Generic | 272 | 816 | 73 | $6,696 |
| Amlodipine Besylate Generic | 190 | 578 | 52 | $2,569 |
| Rosuvastatin Calcium Generic | 165 | 499 | 48 | $7,721 |
| Losartan Potassium Generic | 164 | 490 | 46 | $2,986 |
| Alendronate Sodium Generic | 162 | 454 | 51 | $4,136 |
| Metformin Hcl Er Metformin Hcl | 156 | 462 | 44 | $3,169 |
| Allopurinol Generic | 136 | 412 | 36 | $1,909 |
| Amlodipine Besylate-Benazepril Amlodipine Besylate/Benazepril | 126 | 376 | 35 | $6,974 |
| Metformin Hcl Generic | 121 | 360 | 33 | $1,184 |
| Irbesartan Generic | 116 | 346 | 32 | $4,085 |
| Losartan-Hydrochlorothiazide Losartan/Hydrochlorothiazide | 112 | 336 | 31 | $5,101 |
| Levothyroxine Sodium Generic | 104 | 307 | 28 | $380 |
| Tamsulosin Hcl Generic | 99 | 299 | 34 | $2,099 |
| Lisinopril Generic | 94 | 281 | 28 | $818 |
Brand drugs: 489 claims; generic drugs: 4,050 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Michael Ishioka $134 ($134 in general payments such as food, travel and fees) from 2 companies. The largest payer was Novo Nordisk Inc with $117.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.