Doctor profile · Federal record
Dr. Craig Hamasaki, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Aiea, HI
- NPI 1003870478
- Accepts Medicare
- 42 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
98-1247 Kaahumanu Street, Suite 224
Aiea, HI 96701
(808) 486-9119
fax (808) 486-9401
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- September 26, 2020
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Hawaii #MD-5730
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003870478. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
836
Distinct HCPCS
8
Medicare allowed
$96,144
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 351 | 239 | $132 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 219 | 219 | $134 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 62 | 47 | $89 | |
G0008 |
Administration of influenza virus vaccine | 57 | 57 | $30 | |
90662 |
Influenza vaccine split virus, preservative free | 56 | 56 | $69 | |
96372 |
Injection of drug or substance under skin or into muscle | 32 | 12 | $15 | |
99495 |
Transitional care management services for problem of at least moderate complexity | 32 | 30 | $209 | |
99497 |
Advance care planning, first 30 minutes | 27 | 27 | $85 |
In context: peer comparison
Among 17 peers in this city , average services per provider: 149. This provider delivers 5.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,672
Patients
747
Total drug cost
$67,862
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 588 | 159 | $17,659 |
| Amlodipine Besylate | Generic | 321 | 89 | $3,526 |
| Losartan Potassium | Generic | 308 | 84 | $8,165 |
| Metformin Hcl | Generic | 211 | 62 | $2,718 |
| Simvastatin | Generic | 180 | 49 | $2,985 |
| Metoprolol Succinate | Generic | 164 | 44 | $3,676 |
| Levothyroxine Sodium | Generic | 155 | 37 | $2,918 |
| Allopurinol | Generic | 116 | 31 | $1,725 |
| Rosuvastatin Calcium | Generic | 116 | 36 | $8,639 |
| Omeprazole | Generic | 100 | 34 | $1,391 |
Hospital affiliations
Frequently asked questions
What is Dr. Craig Hamasaki's medical specialty?
Dr. Craig Hamasaki practices Internal Medicine Physician in Aiea, HI.
Where does Dr. Craig Hamasaki practice?
Dr. Craig Hamasaki practices at 98-1247 Kaahumanu Street, Aiea, HI 96701. Office phone: 8084869119.
What is Dr. Craig Hamasaki's NPI?
Dr. Craig Hamasaki's National Provider Identifier (NPI) is 1003870478, issued by NPPES.
Does Dr. Craig Hamasaki accept Medicare assignment?
Yes. Dr. Craig Hamasaki accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Craig Hamasaki commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.