Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Helen H Xiao-Li, MD

Individual provider Radiation Oncology Physician · NPI 1538157946

Helen H Xiao-Li, MD is a Radiation Oncology in Sequim, Washington. Qualified in 1987, 39 years ago. Practices with Olympic Medical Physicians, a 103-clinician group and accepts Medicare assignment. Licensed in New York and Washington.

Years since qualifying
39
Licensed in
NY, WA
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

844 N 5th Ave
Sequim, WA 98382-3045
Phone: (360) 683-9895
Fax: (360) 685-8256
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence MD61619512 (WA)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 224634-3 (NY)

Record details

NPI number1538157946
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 10, 2005
Last updated in NPPESNovember 11, 2024
Certification dateNovember 11, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRADIATION ONCOLOGY
Medical schoolOTHER
Graduated 1987 (39 years in practice)
Group practice Olympic Medical Physicians — 103 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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