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

Guangquan Zhao, MD

Individual provider Internal Medicine Physician · NPI 1710197314

Guangquan Zhao, MD is a Medical Oncology in Longview, Washington. Qualified in 1984, 42 years ago. Practices with Peacehealth, a 187-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas and Washington.

Years since qualifying
42
Licensed in
TX, WA
In the registry since
2007
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1615 Delaware St
Longview, WA 98632-2367
Phone: (360) 414-7878
Show map & directions

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

Additional practice locations (1)

  • 506 Medical Center Blvd, Conroe, TX 77304-2826 — (936) 777-6550

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence MD60331815 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD60331815 (WA)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence MD60331815 (WA)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence N4226 (TX)

Record details

NPI number1710197314
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 23, 2007
Last updated in NPPESMarch 17, 2018

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY, INTERNAL MEDICINE
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Group practice Peacehealth — 187 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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