Doctor profile · Federal record

Dr. Stephanie Yoon, M.D.

Radiation Oncology Physician (CMS: Radiation Oncology) · Duarte, CA

  • NPI 1346775624
  • Accepts Medicare
  • MIPS 91.9 / 100 · 2023
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1500 Duarte RD
Duarte, CA 910103012
(626) 256-4673
Mailing address
Po Box 512185
Los Angeles, CA 900510185

Credentials & registration

NPPES · NUCC
NPI registered
April 2017 — 9 yrs on file
Profile last updated
June 29, 2022
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
California #A158753

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346775624. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,182
Distinct HCPCS
10
Medicare allowed
$138,113
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 312 23 $48
77300 Calculation of radiation therapy dose 203 52 $35
77334 Design and construction of complex radiation treatment device 169 63 $65
77427 Radiation treatment management, 5 treatment sessions 81 35 $205
77263 Complex radiation therapy planning 77 64 $180
99205 New patient office or other outpatient visit, 60-74 minutes 55 55 $190
77470 Special radiation treatment 51 44 $115
99214 Established patient office or other outpatient visit, 30-39 minutes 45 33 $103
77301 High precision radiation therapy planning 42 33 $451
77338 Design and construction of radiation treatment device for high precision radiation therapy 38 31 $242

In context: peer comparison

Among 10 peers in Duarte Radiation Oncology Physician, average services per provider: 111. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$175
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Accuray Incorporated 1 $134.12
Telix Pharmaceuticals 1 $41.01

By nature of payment

Food and Beverage
$175

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephanie Yoon's medical specialty?
Dr. Stephanie Yoon practices Radiation Oncology Physician in Duarte, CA.
Where does Dr. Stephanie Yoon practice?
Dr. Stephanie Yoon practices at 1500 Duarte RD, Duarte, CA 910103012. Office phone: 6262564673.
What is Dr. Stephanie Yoon's NPI?
Dr. Stephanie Yoon's National Provider Identifier (NPI) is 1346775624, issued by NPPES.
Does Dr. Stephanie Yoon accept Medicare assignment?
Yes. Dr. Stephanie Yoon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephanie Yoon commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Calculation of radiation therapy dose (HCPCS 77300); Design and construction of complex radiation treatment device (HCPCS 77334). Source: CMS Medicare Physician & Other Practitioners file.