Michael Chiou, M.D.
NPI 1245530419 · Diagnostic Radiology Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Chiou, M.D. is a Diagnostic Radiology Physician provider in Mountain View, CA (NPI 1245530419).
Provider details
- NPI number
- 1245530419
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A118262 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
3,103 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Screening Mammography77067 | 473 | $170 |
| Screening 3d Breast Mammography77063 | 440 | $66 |
| X-Ray of Chest, 2 Views71046 | 234 | $45 |
| Dxa Bone Density Measurement of Hip, Pelvis, Spine77080 | 143 | $52 |
| X-Ray of Knee, 1-2 Views73560 | 129 | $46 |
| X-Ray of Foot, Minimum of 3 Views73630 | 98 | $46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-10-21
- Last updated
- 2021-07-22
- Certified
- 2021-07-22
Frequently asked questions
- What is Michael Chiou's NPI number?
- Michael Chiou's National Provider Identifier (NPI) is 1245530419, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Chiou's specialty?
- Michael Chiou is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Chiou located?
- Michael Chiou's practice location on file with NPPES is 701 E. El Camino Real, Mountain View, CA 94040-2833.
- What is Michael Chiou's phone number?
- The practice phone number listed in the NPPES registry for Michael Chiou is (650) 934-7000.
- Does Michael Chiou accept Medicare?
- Michael Chiou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Chiou's NPI active?
- Yes — Michael Chiou's NPI (1245530419) is active in the NPPES registry as of the last update on 2021-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.