Doctor profile · Federal record
Dr. William Loui, M.D.
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Honolulu, HI
- NPI 1346217718
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 37 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1329 Lusitana St Ste 307
Honolulu, HI 968132435
(808) 524-6115
fax (808) 528-1711 - Mailing address
-
640 Ulukahiki St
Kailua, HI 967344454
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- March 31, 2021
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- Hawaii #MD10912
- Medicaid
- HI #49311401
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346217718. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
879
Distinct HCPCS
7
Medicare allowed
$121,118
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 546 | 246 | $127 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 110 | 65 | $183 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 90 | 74 | $99 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 63 | 63 | $224 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 29 | 25 | $82 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 27 | 21 | $145 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 14 | 14 | $183 |
In context: peer comparison
Among 12 peers in Honolulu Hematology & Oncology Physician, average services per provider: 222. This provider delivers 4.0× the peer median.Open Payments
Industry payments received
All-time total
$1,639
Transactions
47
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Astellas Pharma US INC | 4 | $358.93 | |
| Pfizer INC. | 8 | $194.20 | |
| Alexion Pharmaceuticals, INC. | 5 | $164.07 | |
| Merck Sharp & Dohme LLC | 4 | $112.18 | |
| Abbvie INC. | 3 | $110.86 | |
| Novartis Pharmaceuticals Corporation | 4 | $93.07 | |
| Incyte Corporation | 3 | $79.89 | |
| Array Biopharma INC | 3 | $63.53 | |
| Puma Biotechnology, INC. | 2 | $59.72 | |
| Daiichi Sankyo INC. | 3 | $58.77 | |
| Janssen Biotech, INC. | 2 | $54.38 | |
| AstraZeneca Pharmaceuticals Lp | 2 | $51.69 | |
| Ipsen Biopharmaceuticals, INC | 2 | $51.43 | |
| PharmaEssentia USA Corporation | 1 | $31.47 | |
| Sobi, INC | 1 | $24.04 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
512
Patients
215
Total drug cost
$989,548
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamoxifen Citrate | Generic | 65 | 23 | $2,137 |
| Anastrozole | Generic | 60 | 20 | $2,158 |
| Xtandi (Enzalutamide) | Brand | 40 | 0 | $553,177 |
| Hydroxyurea | Generic | 37 | 11 | $2,291 |
| Letrozole | Generic | 35 | 12 | $603 |
| Prochlorperazine Maleate | Generic | 34 | 24 | $990 |
| Raloxifene Hcl | Generic | 34 | 12 | $3,621 |
| Loperamide (Loperamide Hcl) | Brand | 33 | 24 | $648 |
| Jakafi (Ruxolitinib Phosphate) | Brand | 30 | 0 | $411,496 |
| Megestrol Acetate | Generic | 28 | 15 | $3,693 |
Hospital affiliations
Frequently asked questions
What is Dr. William Loui's medical specialty?
Dr. William Loui practices Hematology & Oncology Physician in Honolulu, HI.
Where does Dr. William Loui practice?
Dr. William Loui practices at 1329 Lusitana St Ste 307, Honolulu, HI 968132435. Office phone: 8085246115.
What is Dr. William Loui's NPI?
Dr. William Loui's National Provider Identifier (NPI) is 1346217718, issued by NPPES.
Does Dr. William Loui accept Medicare assignment?
Yes. Dr. William Loui accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Loui 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 99215); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.