Doctor profile · Federal record

Dr. Helen Xiao-Li, MD

Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Sequim, WA

  • NPI 1538157946
  • Accepts Medicare
  • 39 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
844 N 5Th Ave
Sequim, WA 983823045
(360) 683-9895
fax (360) 685-8256
Mailing address
Po Box 850
Port Angeles, WA 983620146

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
November 11, 2024
Year of graduation
1987 — 39 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State licenses (2)
Washington #MD61619512 · New York #224634-3

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538157946. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,057
Distinct HCPCS
10
Medicare allowed
$463,386
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 575 24 $143
G6015 Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session 443 17 $437
77300 Calculation of radiation therapy dose 376 24 $78
77334 Design and construction of complex radiation treatment device 242 27 $147
77336 Continuing radiation therapy consultation per week 107 24 $107
77427 Radiation treatment management, 5 treatment sessions 107 24 $222
77280 Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 46 24 $324
99213 Established patient office or other outpatient visit, 20-29 minutes 38 28 $105
99204 New patient office or other outpatient visit, 45-59 minutes 27 27 $195
77263 Complex radiation therapy planning 26 24 $196

In context: peer comparison

Among 2 peers in Sequim Radiation Oncology Physician, average services per provider: 128. This provider delivers 16× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
73
Patients
29
Total drug cost
$1,079
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 60 29 $676
Silver Sulfadiazine Generic 13 0 $402

Frequently asked questions

Auto-generated from federal data
What is Dr. Helen Xiao-Li's medical specialty?
Dr. Helen Xiao-Li practices Radiation Oncology Physician in Sequim, WA.
Where does Dr. Helen Xiao-Li practice?
Dr. Helen Xiao-Li practices at 844 N 5Th Ave, Sequim, WA 983823045. Office phone: 3606839895.
What is Dr. Helen Xiao-Li's NPI?
Dr. Helen Xiao-Li's National Provider Identifier (NPI) is 1538157946, issued by NPPES.
Does Dr. Helen Xiao-Li accept Medicare assignment?
Yes. Dr. Helen Xiao-Li accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Helen Xiao-Li commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc (HCPCS G6015); Calculation of radiation therapy dose (HCPCS 77300). Source: CMS Medicare Physician & Other Practitioners file.