Doctor profile · Federal record
Dr. Gerald Watanabe, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Honolulu, HI
- NPI 1770660581
- Accepts Medicare
- 36 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
321 N Kuakini St, Suite 802
Honolulu, HI 968172362
(808) 529-8801
fax (808) 529-8803
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- December 31, 2015
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Hawaii #MD7651
- Medicaid
- HI #048553-01
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770660581. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
319
Distinct HCPCS
4
Medicare allowed
$38,152
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 174 | 67 | $134 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 54 | 29 | $95 | |
99497 |
Advance care planning, first 30 minutes | 49 | 44 | $84 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 42 | 42 | $135 |
In context: peer comparison
Among 114 peers in Honolulu Internal Medicine Physician, average services per provider: 127. This provider delivers 2.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
638
Patients
146
Total drug cost
$73,595
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 101 | 29 | $3,198 |
| Losartan Potassium | Generic | 94 | 28 | $1,973 |
| Amlodipine Besylate | Generic | 86 | 24 | $1,367 |
| Rosuvastatin Calcium | Generic | 82 | 24 | $4,745 |
| Levothyroxine Sodium | Generic | 42 | 11 | $630 |
| Allopurinol | Generic | 40 | 11 | $526 |
| Glipizide ER (Glipizide) | Brand | 27 | 0 | $725 |
| Ozempic (Semaglutide) | Brand | 26 | 0 | $57,051 |
| Fluticasone Propionate | Generic | 23 | 0 | $347 |
| Lisinopril | Generic | 21 | 0 | $208 |
Hospital affiliations
Frequently asked questions
What is Dr. Gerald Watanabe's medical specialty?
Dr. Gerald Watanabe practices Internal Medicine Physician in Honolulu, HI.
Where does Dr. Gerald Watanabe practice?
Dr. Gerald Watanabe practices at 321 N Kuakini St, Honolulu, HI 968172362. Office phone: 8085298801.
What is Dr. Gerald Watanabe's NPI?
Dr. Gerald Watanabe's National Provider Identifier (NPI) is 1770660581, issued by NPPES.
Does Dr. Gerald Watanabe accept Medicare assignment?
Yes. Dr. Gerald Watanabe accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gerald Watanabe commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Advance care planning (HCPCS 99497). Source: CMS Medicare Physician & Other Practitioners file.