Doctor profile · Federal record

Dr. Michael Chiou, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Mountain View, CA

  • NPI 1245530419
  • Accepts Medicare
  • 16 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
701 E. El Camino Real
Mountain View, CA 940402833
(650) 934-7000
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
October 2010 — 16 yrs on file
Profile last updated
July 22, 2021
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
California #A118262

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245530419. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
21,546
Distinct HCPCS
10
Medicare allowed
$385,881
HCPCS Description Services Patients Avg allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 12,922 128 $0
A9585 Injection, gadobutrol, 0.1 ml 5,675 59 $0
71046 X-ray of chest, 2 views 275 273 $45
77067 Screening mammography 265 265 $175
77063 Screening 3d breast mammography 235 235 $68
77080 Dxa bone density measurement of hip, pelvis, spine 190 190 $51
73630 X-ray of foot, minimum of 3 views 131 116 $46
73560 X-ray of knee, 1-2 views 123 100 $47
72100 X-ray of lower and sacral spine, 2-3 views 106 103 $54
73501 X-ray of hip, 1 view 99 97 $44

In context: peer comparison

Among 12 peers in this city , average services per provider: 384. This provider delivers 56× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Chiou's medical specialty?
Dr. Michael Chiou practices Diagnostic Radiology Physician in Mountain View, CA.
Where does Dr. Michael Chiou practice?
Dr. Michael Chiou practices at 701 E. El Camino Real, Mountain View, CA 940402833. Office phone: 6509347000.
What is Dr. Michael Chiou's NPI?
Dr. Michael Chiou's National Provider Identifier (NPI) is 1245530419, issued by NPPES.
Does Dr. Michael Chiou accept Medicare assignment?
Yes. Dr. Michael Chiou accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Chiou 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); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.