Doctor profile · Federal record

Dr. Mitsutomi Ishiyama, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Seattle, WA

  • NPI 1063823326
  • Accepts Medicare
  • 22 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1100 9Th Ave
Seattle, WA 981012756
(206) 223-6851
fax (206) 223-6816

Credentials & registration

NPPES · NUCC
NPI registered
May 2014 — 12 yrs on file
Profile last updated
September 29, 2023
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
Washington #MD60859644

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1063823326. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,795
Distinct HCPCS
10
Medicare allowed
$77,521
HCPCS Description Services Patients Avg allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 3,480 36 $0
A9585 Injection, gadobutrol, 0.1 ml 1,100 13 $0
77080 Dxa bone density measurement of hip, pelvis, spine 291 291 $42
77080 Dxa bone density measurement of hip, pelvis, spine 95 95 $10
70450 Ct scan head or brain without contrast 92 85 $42
78815 Nuclear medicine study from skull base to mid-thigh with ct scan 71 70 $120
70553 Mri scan of brain before and after contrast 54 54 $115
74177 Ct scan of abdomen and pelvis with contrast 48 47 $92
70551 Mri scan of brain without contrast 45 44 $74
71260 Ct scan of chest with contrast 41 39 $57

In context: peer comparison

Among 79 peers in Seattle Diagnostic Radiology Physician, average services per provider: 113. This provider delivers 51× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mitsutomi Ishiyama's medical specialty?
Dr. Mitsutomi Ishiyama practices Diagnostic Radiology Physician in Seattle, WA.
Where does Dr. Mitsutomi Ishiyama practice?
Dr. Mitsutomi Ishiyama practices at 1100 9Th Ave, Seattle, WA 981012756. Office phone: 2062236851.
What is Dr. Mitsutomi Ishiyama's NPI?
Dr. Mitsutomi Ishiyama's National Provider Identifier (NPI) is 1063823326, issued by NPPES.
Does Dr. Mitsutomi Ishiyama accept Medicare assignment?
Yes. Dr. Mitsutomi Ishiyama accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mitsutomi Ishiyama commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Injection, gadobutrol, 0.1 ml (HCPCS A9585); Dxa bone density measurement of hip, pelvis, spine (HCPCS 77080). Source: CMS Medicare Physician & Other Practitioners file.