Doctor profile · Federal record

Dr. Daphne Stewart, M.D

Medical Oncology Physician (CMS: Medical Oncology) · Hematology & Oncology Physician · Los Angeles, CA

  • NPI 1598879918
  • Accepts Medicare
  • 28 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1441 Eastlake Ave
Los Angeles, CA 900891019
(323) 442-5100
Mailing address
Po Box 31309
Los Angeles, CA 900310309

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
March 14, 2023
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State license (1)
California #A69829

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598879918. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
330
Distinct HCPCS
7
Medicare allowed
$38,955
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 127 98 $103
99215 Established patient office or other outpatient visit, 40-54 minutes 70 51 $150
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 45 21 $125
99213 Established patient office or other outpatient visit, 20-29 minutes 26 26 $70
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 25 14 $83
99205 New patient office or other outpatient visit, 60-74 minutes 20 20 $190
99239 Hospital discharge day management, more than 30 minutes 17 16 $121

In context: peer comparison

Among 16 peers in this city , average services per provider: 143. This provider delivers 2.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$230
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 2 $185.95
Novartis Pharmaceuticals Corporation 1 $44.15

By nature of payment

Food and Beverage
$230

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
154
Patients
44
Total drug cost
$706,701
Drug Type Claims Patients Total cost
Ibrance (Palbociclib) Brand 42 0 $703,190
Anastrozole Generic 41 20 $2,211
Letrozole Generic 32 13 $736
Ondansetron Hcl Generic 20 11 $275
Gabapentin Generic 19 0 $289

Frequently asked questions

Auto-generated from federal data
What is Dr. Daphne Stewart's medical specialty?
Dr. Daphne Stewart practices Medical Oncology Physician in Los Angeles, CA.
Where does Dr. Daphne Stewart practice?
Dr. Daphne Stewart practices at 1441 Eastlake Ave, Los Angeles, CA 900891019. Office phone: 3234425100.
What is Dr. Daphne Stewart's NPI?
Dr. Daphne Stewart's National Provider Identifier (NPI) is 1598879918, issued by NPPES.
Does Dr. Daphne Stewart accept Medicare assignment?
Yes. Dr. Daphne Stewart accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daphne Stewart commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.