Doctor profile · Federal record

Dr. Hussein Assi, M.D

Medical Oncology Physician (CMS: Medical Oncology) · Hematology (Internal Medicine) Physician · Internal Medicine Physician · Boston, MA

  • NPI 1235544362
  • Accepts Medicare
  • 15 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
830 Harrison Ave, 3Rd Fl, Moakley, Hematology/Oncology
Boston, MA 021182905
(617) 638-6428
fax (617) 638-5756
Mailing address
960 Massachusetts Ave, Fl 2
Boston, MA 021182690

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
July 10, 2023
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
Massachusetts #283659
Medicaid (2)
NH #3135284 · MA #110162927A

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235544362. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
260
Distinct HCPCS
4
Medicare allowed
$38,058
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 98 31 $153
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 68 68 $184
99214 Established patient office or other outpatient visit, 30-39 minutes 59 35 $104
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 35 21 $126

In context: peer comparison

Among 103 peers in this city , average services per provider: 67. This provider delivers 3.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,319
Transactions
12
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Exelixis Inc. 12 $4,319.45

By nature of payment

Honoraria
$2,700
Travel and Lodging
$1,405
Food and Beverage
$215

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
147
Patients
34
Total drug cost
$1,451
Drug Type Claims Patients Total cost
Dexamethasone Generic 70 16 $370
Prochlorperazine Maleate Generic 31 18 $663
Olanzapine Generic 20 0 $27
Famotidine Generic 14 0 $158
Loperamide (Loperamide Hcl) Brand 12 0 $233

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Hussein Assi's medical specialty?
Dr. Hussein Assi practices Medical Oncology Physician in Boston, MA.
Where does Dr. Hussein Assi practice?
Dr. Hussein Assi practices at 830 Harrison Ave, 3Rd Fl, Boston, MA 021182905. Office phone: 6176386428.
What is Dr. Hussein Assi's NPI?
Dr. Hussein Assi's National Provider Identifier (NPI) is 1235544362, issued by NPPES.
Does Dr. Hussein Assi accept Medicare assignment?
Yes. Dr. Hussein Assi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Hussein Assi commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.