James William Assif, MD
Radiation Oncology Physician · Wakefield, RI
James William Assif, MD is a radiation oncology physician with a practice address in Wakefield, Rhode Island, and NPI 1215566849, issued on Apr 6, 2020. Check the license (Rhode Island MD20686, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- James William Assif
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- MD20686 RI
Self-reported in NPPES; status is on the state search - Practice location
- 142 Kenyon Ave, Wakefield, RI 02879
- Phone
- (401) 284-0850
- Enumerated
- Apr 6, 2020
- Record last updated
- Jul 3, 2025
- Fax
- (401) 284-0860
- Medicare enrollment
- Enrolled (PECOS I20250626003843); accepts Medicare assignment
- Entity
- Type 1 · individual
Verify James William Assif in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD20686Check 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
- Silver Spring Health Care Management IncWakefield, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Radiation Oncology Physician providers in Rhode Island
There are 29 radiation oncology physician records in Rhode Island.
Other radiation oncology physician records in Rhode Island
- Rashmi Benda, M.D.Warwick, RI1750334769
- Prakash Chougule, M.D.Warwick, RI1174510945
- John Coen, MDProvidence, RI1891720165
- Brijal Desai, MDProvidence, RI1811282767
- Thomas Dipetrillo, M.DProvidence, RI1881651941
- Martin Fuss, M.D.Woonsocket, RI1710990312
- Jonathan Glanzman, MDProvidence, RI1649533175
- Donald Joyce, M.D.Providence, RI1871596833
- Michael Katin, MDWoonsocket, RI1811994999
- Paul Koffer, M.D.Providence, RI1821433053
Common questions
What is James William Assif, MD's NPI number?
James William Assif, MD's National Provider Identifier (NPI) is 1215566849, issued on Apr 6, 2020. An NPI identifies a provider in billing; it is not a license.
Where is James William Assif, MD located?
The NPPES record lists a practice address at 142 Kenyon Ave, Wakefield, RI, 02879. Phone: (401) 284-0850. Providers update this record themselves, so call before visiting.
How can I verify James William Assif, MD's license?
NPPES lists Rhode Island license number MD20686, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. 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.