Doctor profile · Federal record
Dr. Frederick Matsen
Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Seattle, WA
- NPI 1023193836
- Accepts Medicare
- MIPS 87.0 / 100 · 2023
- 58 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
University of Washington Medical Ctr, 1959 Ne Pacific St
Seattle, WA 981956500
(206) 543-3690 - Mailing address
-
Po Box 50095
Seattle, WA 981455095
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- June 6, 2013
- Year of graduation
- 1968 — 58 yrs since
- Specialty taxonomy
- 207X00000X — NUCC code
- State license (1)
- Washington #MD00012229
- Medicaid
- WA #1023193836
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023193836. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
40
Distinct HCPCS
2
Medicare allowed
$57,464
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
23472 |
Prosthetic repair of shoulder joint, total shoulder | 26 | 24 | $1,577 | |
23470 |
Partial replacement of shoulder joint | 14 | 14 | $1,175 |
In context: peer comparison
Among 40 peers in this city , average services per provider: 87. This provider delivers 0.5× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Frederick Matsen's medical specialty?
Dr. Frederick Matsen practices Orthopaedic Surgery Physician in Seattle, WA.
Where does Dr. Frederick Matsen practice?
Dr. Frederick Matsen practices at University of Washington Medical Ctr, Seattle, WA 981956500. Office phone: 2065433690.
What is Dr. Frederick Matsen's NPI?
Dr. Frederick Matsen's National Provider Identifier (NPI) is 1023193836, issued by NPPES.
Does Dr. Frederick Matsen accept Medicare assignment?
Yes. Dr. Frederick Matsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Frederick Matsen commonly perform?
Top Medicare-reported procedures in 2023: Prosthetic repair of shoulder joint, total shoulder (HCPCS 23472); Partial replacement of shoulder joint (HCPCS 23470). Source: CMS Medicare Physician & Other Practitioners file.