Doctor profile · Federal record
Dr. Sean Matsuwaka, MD
Physical Medicine & Rehabilitation Physician (CMS: Physical Medicine and Rehabilitation) · Seattle, WA
- NPI 1427444983
- Accepts Medicare
- 11 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1550 N 115Th St
Seattle, WA 981338401
(206) 520-5000 - Mailing address
-
Po Box 50095
Seattle, WA 981455095
Credentials & registration
- NPI registered
- April 2015 — 11 yrs on file
- Profile last updated
- December 12, 2022
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 208100000X — NUCC code
- State license (1)
- Washington #MD61058068
- Medicaid
- WA #1427444983
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1427444983. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
602
Distinct HCPCS
10
Medicare allowed
$49,389
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 188 | 36 | $1 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 85 | 85 | $123 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 78 | 50 | $97 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 72 | 51 | $137 | |
20611 |
Aspiration and/or injection of fluid large joint using ultrasound guidance | 38 | 30 | $113 | |
64483 |
Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | 31 | 25 | $126 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 30 | 30 | $176 | |
62323 |
Injection of substance into lower spine canal using imaging guidance | 29 | 25 | $102 | |
64493 |
Injection of lower or sacral spine facet joint using imaging guidance, single level | 22 | 16 | $130 | |
64494 |
Injection of lower or sacral spine facet joint using imaging guidance, second level | 16 | 13 | $74 |
In context: peer comparison
Among 33 peers in this city , average services per provider: 215. This provider delivers 2.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
105
Patients
65
Total drug cost
$1,278
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 48 | 26 | $708 |
| Cyclobenzaprine Hcl | Generic | 24 | 13 | $211 |
| Diclofenac Sodium | Generic | 17 | 13 | $348 |
| Alprazolam | Generic | 16 | 13 | $10 |
Hospital affiliations
Frequently asked questions
What is Dr. Sean Matsuwaka's medical specialty?
Dr. Sean Matsuwaka practices Physical Medicine & Rehabilitation Physician in Seattle, WA.
Where does Dr. Sean Matsuwaka practice?
Dr. Sean Matsuwaka practices at 1550 N 115Th St, Seattle, WA 981338401. Office phone: 2065205000.
What is Dr. Sean Matsuwaka's NPI?
Dr. Sean Matsuwaka's National Provider Identifier (NPI) is 1427444983, issued by NPPES.
Does Dr. Sean Matsuwaka accept Medicare assignment?
Yes. Dr. Sean Matsuwaka accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sean Matsuwaka commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); New patient office or other outpatient visit (HCPCS 99203); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.