Hussein Assi, M.D
Medical Oncology Physician · Boston, MA
Hussein Assi, M.D is a medical oncology physician with a practice address in Boston, Massachusetts, and NPI 1235544362, issued on Jun 27, 2014. Check the license (Massachusetts 283659, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Hussein Assi
- Credential
- M.D
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 283659 MA
Self-reported in NPPES; status is on the state search - Practice location
- 830 Harrison Avenue, 3RD FL, Boston, MA 02118
- Phone
- (617) 638-6428
- Enumerated
- Jun 27, 2014
- Record last updated
- May 20, 2026
- Fax
- (617) 638-5756
- Medicaid IDs
- 3135284 NH
110162927A MA - Medicare enrollment
- Enrolled (PECOS I20200908000657); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 421 in Massachusetts → Look up another NPI →
Also registered at 830 Harrison Avenue, 3RD FL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Maya Abdallah, MDInternal Medicine Physician1861854937
- Jose Acevedo Mejia, M.D.Hematology & Oncology Physician1801277173
- Britney Bell, MDHematology & Oncology Physician1265938732
- Natasha Burke, N.P.Gerontology Nurse Practitioner1700325503
- Yenong Cao, MDHematology & Oncology Physician1063972016
- Stacey Chung, PA-CPhysician Assistant1184385064
Verify Hussein Assi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 283659Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average medical oncology physician in 2024
338 Medicare Part D claims for 43 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 12 claims were for opioids.
Most prescribed
- Dexamethasone86 claims
- Olanzapine46 claims
- Prochlorperazine Maleate34 claims
- Lonsurf22 claims
- Eliquis18 claims
- Gavreto13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $4,319.45
12 payments; by number, the most common kind was travel and lodging; the largest payer was Exelixis Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Evans Medical Foundation IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hussein Assi among 421 medical oncology physician records in Massachusetts
Hussein Assi, M.D is one of 421 medical oncology physician records with a practice address in Massachusetts. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 73% of them.
- NPI issued2014 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2011 · median 2007 among the 291 with a school on file
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Massachusetts
There are 421 medical oncology physician records in Massachusetts.
All 421 in Massachusetts → Every provider in Boston → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Adeboye Adewoye, M.D.Boston, MA 021181316920838
- Karen Antman, M.D.Boston, MA 021181528195401
- Marjory Charlot, M.D.Boston, MA 021181871609644
- Peter Everett, M.D.Boston, MA 021181144495375
- Amy Fallon, MDBoston, MA 021181346223450
- Gretchen Gignac, MDBoston, MA 021181821288960
- Kevan Hartshorn, M.D.Boston, MA 021181700862745
- Naomi Ko, M.D.Boston, MA 021181043360928
Common questions
What is Hussein Assi, M.D's NPI number?
Hussein Assi, M.D's National Provider Identifier (NPI) is 1235544362, issued on Jun 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Hussein Assi, M.D located?
The NPPES record lists a practice address at 830 Harrison Avenue, 3RD FL, Boston, MA, 02118. Phone: (617) 638-6428. Providers update this record themselves, so call before visiting.
How can I verify Hussein Assi, M.D's license?
NPPES lists Massachusetts license number 283659, 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.
How much does Hussein Assi, M.D prescribe under Medicare Part D?
In 2024, Hussein Assi, M.D had 338 Medicare Part D claims for 43 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
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.