Doctor profile · Federal record

Dr. Michelle El-Hajjaoui, DO

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Medical Oncology Physician · West Covina, CA

  • NPI 1184010662
  • Accepts Medicare
  • MIPS 91.9 / 100 · 2023
  • 11 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1115 S Sunset Ave Ste 200
West Covina, CA 917903940
(626) 732-8390
fax (626) 631-0951
Additional location
415 W Carroll Ave Ste 202
Glendora, CA 917414208
(626) 225-2111
Mailing address
Po Box 4039
Orange, CA 928634039

Credentials & registration

NPPES · NUCC
NPI registered
April 2015 — 11 yrs on file
Profile last updated
February 10, 2024
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
California #20A15250

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184010662. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
34,022
Distinct HCPCS
10
Medicare allowed
$289,240
HCPCS Description Services Patients Avg allowed
J1439 Injection, ferric carboxymaltose, 1 mg 18,750 15 $1
J0185 Injection, aprepitant, 1 mg 7,670 21 $2
J0897 Injection, denosumab, 1 mg 2,700 14 $23
J2405 Injection, ondansetron hydrochloride, per 1 mg 1,552 29 $0
J1100 Injection, dexamethasone sodium phosphate, 1 mg 1,134 25 $0
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 359 139 $125
J2506 Injection, pegfilgrastim, excludes biosimilar, 0.5 mg 336 11 $105
96375 Injection of additional new drug or substance into vein 220 32 $18
99213 Established patient office or other outpatient visit, 20-29 minutes 157 75 $97
96413 Administration of chemotherapy into vein, 1 hour or less 148 48 $150

In context: peer comparison

Among 1 peers in this city , average services per provider: 1,173. This provider delivers 29× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$793
Transactions
31
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 12 $201.06
AstraZeneca Pharmaceuticals LP 5 $104.29
Boston Scientific Corporation 1 $54.26
Merck Sharp & Dohme LLC 2 $45.31
Aveo Pharmaceuticals, Inc. 1 $35.59
Gilead Sciences, Inc. 1 $32.82
Janssen Biotech, Inc. 1 $30.42
SOBI, INC 1 $29.90
Daiichi Sankyo Inc. 1 $29.78
Tempus AI, Inc 1 $29.67
Takeda Pharmaceuticals U.S.A., Inc. 1 $28.67
Celgene Corporation 1 $28.04
ADC Therapeutics America, Inc. 1 $25.80
ImmunoGen, Inc. 1 $25.69
Lilly USA, LLC 1 $22.69

By nature of payment

Food and Beverage
$767
Education
$26

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
244
Patients
28
Total drug cost
$368,309
Drug Type Claims Patients Total cost
Dexamethasone Generic 34 15 $741
Letrozole Generic 30 0 $1,204
Prednisone Generic 25 0 $152
Ondansetron Hcl Generic 20 13 $196
Eliquis (Apixaban) Brand 19 0 $16,365
Montelukast Sodium Generic 15 0 $166
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 14 0 $512
Omeprazole Generic 14 0 $235
Pantoprazole Sodium Generic 14 0 $262
Allopurinol Generic 13 0 $64

Frequently asked questions

Auto-generated from federal data
What is Dr. Michelle El-Hajjaoui's medical specialty?
Dr. Michelle El-Hajjaoui practices Hematology & Oncology Physician in West Covina, CA.
Where does Dr. Michelle El-Hajjaoui practice?
Dr. Michelle El-Hajjaoui practices at 1115 S Sunset Ave Ste 200, West Covina, CA 917903940. Office phone: 6267328390.
What is Dr. Michelle El-Hajjaoui's NPI?
Dr. Michelle El-Hajjaoui's National Provider Identifier (NPI) is 1184010662, issued by NPPES.
Does Dr. Michelle El-Hajjaoui accept Medicare assignment?
Yes. Dr. Michelle El-Hajjaoui accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michelle El-Hajjaoui commonly perform?
Top Medicare-reported procedures in 2023: Injection, ferric carboxymaltose, 1 mg (HCPCS J1439); Injection, aprepitant, 1 mg (HCPCS J0185); Injection, denosumab, 1 mg (HCPCS J0897). Source: CMS Medicare Physician & Other Practitioners file.