Doctor profile · Federal record
Dr. Chad Koyanagi, M.D.
Specialist · Honolulu, HI
- NPI 1770536088
- MIPS 72.5 / 100 · 2023
- 20 yrs on file
- Male
- No sanctions
Practice & contact
- Primary practice
-
677 Ala Moana Blvd, Suite 1025
Honolulu, HI 968135419
(808) 535-5975
fax (808) 535-5976
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 174400000X — NUCC code
- State license (1)
- Hawaii #MD10043
- Medicaid
- HI #496259-01
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1770536088. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
97
Distinct HCPCS
2
Medicare allowed
$5,764
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 66 | 14 | $50 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 31 | 11 | $80 |
In context: peer comparison
Among 20 peers in this city , average services per provider: 131. This provider delivers 0.7× the peer median.Open Payments
Industry payments received
All-time total
$2,235
Transactions
27
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, Inc | 5 | $587.26 | |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | 4 | $359.37 | |
| Teva Pharmaceuticals USA, Inc. | 7 | $286.27 | |
| Janssen Scientific Affairs, LLC | 3 | $213.53 | |
| Neurocrine Biosciences, Inc. | 2 | $159.16 | |
| ABBVIE INC. | 2 | $152.24 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $149.99 | |
| Otsuka America Pharmaceutical, Inc. | 1 | $147.03 | |
| ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) | 1 | $112.37 | |
| Indivior Inc. | 1 | $67.92 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
355
Patients
0
Total drug cost
$421,487
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Invega Sustenna (Paliperidone Palmitate) | Brand | 78 | 0 | $167,548 |
| Quetiapine Fumarate | Generic | 55 | 0 | $3,254 |
| Abilify Maintena (Aripiprazole) | Brand | 31 | 0 | $89,765 |
| Aripiprazole | Generic | 27 | 0 | $3,789 |
| Bupropion Xl (Bupropion Hcl) | Brand | 24 | 0 | $398 |
| Olanzapine | Generic | 24 | 0 | $998 |
| Divalproex Sodium Er (Divalproex Sodium) | Brand | 19 | 0 | $405 |
| Lorazepam | Generic | 17 | 0 | $152 |
| Citalopram Hbr (Citalopram Hydrobromide) | Brand | 16 | 0 | $271 |
| Clozapine | Generic | 13 | 0 | $351 |
Frequently asked questions
What is Dr. Chad Koyanagi's medical specialty?
Dr. Chad Koyanagi practices Specialist in Honolulu, HI.
Where does Dr. Chad Koyanagi practice?
Dr. Chad Koyanagi practices at 677 Ala Moana Blvd, Suite 1025, Honolulu, HI 968135419. Office phone: 8085355975.
What is Dr. Chad Koyanagi's NPI?
Dr. Chad Koyanagi's National Provider Identifier (NPI) is 1770536088, issued by NPPES.
What procedures does Dr. Chad Koyanagi commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.