Osamu Sakai, M.D.
NPI 1770550956 · Neuroradiology Physician · Boston, MA
Provider details
- NPI number
- 1770550956
- Entity type
- Individual
- Primary specialty
- Neuroradiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 219618 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 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
1,284 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 180 | $41 |
| Ct Scan of Soft Tissue of Neck With Contrast70491 | 137 | $67 |
| Mri Scan of Brain Before and After Contrast70553 | 127 | $144 |
| Mri Scan of Brain Before and After Contrast70553 | 118 | $113 |
| Ct Scan of Soft Tissue of Neck With Contrast70491 | 82 | $82 |
| Mri Scan of Brain Without Contrast70551 | 69 | $72 |
| Imaging for Evaluation of Swallowing Function |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-07
- Last updated
- 2014-07-10
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.