Osamu Sakai, M.D.
Neuroradiology Physician · Boston, MA
Osamu Sakai, M.D. is a neuroradiology physician with a practice address in Boston, Massachusetts, and NPI 1770550956, issued on Mar 7, 2006. Check the license (Massachusetts 219618, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Osamu Sakai
- Credential
- M.D.
- Primary taxonomy
- Neuroradiology Physician 2085N0700X
- License number
- 219618 MA
Self-reported in NPPES; status is on the state search - Practice location
- 88 E Newton St, Boston, MA 02118
- Phone
- (617) 638-6610
- Enumerated
- Mar 7, 2006
- Record last updated
- Jul 10, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (617) 638-6616
- Medicaid ID
- 110035467A MA
- Medicare enrollment
- Enrolled (PECOS I20040323001465); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neuroradiology physician records → All 82 in Massachusetts → Look up another NPI →
Also registered at 88 E Newton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Becker, M.D.Surgery Physician1760441059
Verify Osamu Sakai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 219618Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Massachusetts General Physicians Organization IncDanvers, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Osamu Sakai among 82 neuroradiology physician records in Massachusetts
Osamu Sakai, M.D. is one of 82 neuroradiology physician records with a practice address in Massachusetts. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 59% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1988 · median 1998 among the 53 with a school on file
- Record last updated2014 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085N0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neuroradiology Physician providers in Massachusetts
There are 82 neuroradiology physician records in Massachusetts.
All 82 in Massachusetts → Every provider in Boston → Neuroradiology Physician nationwide →
The 8 neuroradiology physician records with the nearest ZIP codes
- Mohamad Assayuri, MDBoston, MA 021181417475708
- Glenn Barest, M.D.Boston, MA 021181326015967
- Harprit Bedi, MDBoston, MA 021181417158213
- Siavash Behbahani, M.D.Boston, MA 021181194164731
- Nicholas CunninghamBoston, MA 021181225653199
- Francesco Massari, M.D. ; PH.D.Boston, MA 021181730444894
- Alexander Norbash, M.D.Boston, MA 021181790752269
- Kevin O'Connor, M.D.Boston, MA 021181124281001
Common questions
What is Osamu Sakai, M.D.'s NPI number?
Osamu Sakai, M.D.'s National Provider Identifier (NPI) is 1770550956, issued on Mar 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Osamu Sakai, M.D. located?
The NPPES record lists a practice address at 88 E Newton St, Boston, MA, 02118. Phone: (617) 638-6610. Providers update this record themselves, so call before visiting.
How can I verify Osamu Sakai, M.D.'s license?
NPPES lists Massachusetts license number 219618, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.