Doctor profile · Federal record
Dr. Hiroki Mitsuyama, MD
Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Seattle, WA
- NPI 1164488086
- Accepts Medicare
- 25 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1100 9Th Ave
Seattle, WA 981012756
(206) 223-6801
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- April 23, 2013
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State licenses (2)
- Washington #MD60178819 · Arizona #35386
- Medicaid (2)
- AZ #088567 · WA #1164488086
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164488086. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,332
Distinct HCPCS
10
Medicare allowed
$121,292
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77014 |
Ct guidance for insertion of radiation therapy fields | 557 | 53 | $49 | |
77427 |
Radiation treatment management, 5 treatment sessions | 153 | 50 | $211 | |
77300 |
Calculation of radiation therapy dose | 146 | 40 | $36 | |
77334 |
Design and construction of complex radiation treatment device | 103 | 27 | $66 | |
G6002 |
Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 45 | 15 | $23 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 44 | 40 | $70 | |
77263 |
Complex radiation therapy planning | 41 | 40 | $182 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 38 | 38 | $139 | |
77290 |
Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved | 25 | 24 | $91 | |
77280 |
Obtaining data needed to develop the optimal radiation treatment, 1 treatment area | 24 | 19 | $42 |
In context: peer comparison
Among 27 peers in Seattle Radiation Oncology Physician, average services per provider: 74. This provider delivers 18× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
35
Patients
11
Total drug cost
$472
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamsulosin Hcl | Generic | 35 | 11 | $472 |
Hospital affiliations
Frequently asked questions
What is Dr. Hiroki Mitsuyama's medical specialty?
Dr. Hiroki Mitsuyama practices Radiation Oncology Physician in Seattle, WA.
Where does Dr. Hiroki Mitsuyama practice?
Dr. Hiroki Mitsuyama practices at 1100 9Th Ave, Seattle, WA 981012756. Office phone: 2062236801.
What is Dr. Hiroki Mitsuyama's NPI?
Dr. Hiroki Mitsuyama's National Provider Identifier (NPI) is 1164488086, issued by NPPES.
Does Dr. Hiroki Mitsuyama accept Medicare assignment?
Yes. Dr. Hiroki Mitsuyama accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hiroki Mitsuyama commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Radiation treatment management, 5 treatment sessions (HCPCS 77427); Calculation of radiation therapy dose (HCPCS 77300). Source: CMS Medicare Physician & Other Practitioners file.