Doctor profile · Federal record
Dr. ROY MATSUYAMA, M.D.
Gastroenterology Physician (CMS: GASTROENTEROLOGY) · KAHULUI, HI
- NPI 1144356783
- Accepts Medicare
- 46 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
173 HOOHANA ST, SUITE 104
KAHULUI, HI 967322482
(808) 871-7222
fax (808) 871-2222
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- February 3, 2015
- Year of graduation
- 1980 — 46 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Hawaii #17851
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144356783. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
478
Distinct HCPCS
9
Medicare allowed
$64,303
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 105 | 104 | $12 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 74 | 74 | $172 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 72 | 54 | $130 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 58 | 58 | $220 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 48 | 48 | $179 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 41 | 41 | $196 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 39 | 38 | $65 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 27 | 27 | $254 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 14 | 14 | $153 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 53. This provider delivers 9.0× the peer median.Open Payments
Industry payments received
All-time total
$317
Transactions
5
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Cook Medical LLC | 1 | $124.71 | |
| AstraZeneca Pharmaceuticals LP | 1 | $120.09 | |
| PFIZER INC. | 3 | $72.05 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
315
Patients
207
Total drug cost
$110,200
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 174 | 172 | $3,085 |
| Omeprazole | Generic | 54 | 19 | $798 |
| Pantoprazole Sodium | Generic | 23 | 0 | $355 |
| Creon (Lipase/Protease/Amylase) | Brand | 20 | 0 | $104,623 |
| Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 16 | 16 | $325 |
| Budesonide Dr (Budesonide) | Brand | 14 | 0 | $789 |
| Dicyclomine Hcl | Generic | 14 | 0 | $225 |