Guangquan Zhao, MD
Medical Oncology Physician · Longview, WA
Guangquan Zhao, MD is a medical oncology physician with a practice address in Longview, Washington, and NPI 1710197314, issued on May 23, 2007. Check the license (Washington MD60331815, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Guangquan Zhao
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- MD60331815 WA
N4226 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1615 Delaware St, Longview, WA 98632
- Phone
- (360) 414-7878
- Enumerated
- May 23, 2007
- Record last updated
- Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid IDs
- 316367702 TX
316367704 TX - Medicare enrollment
- Enrolled (PECOS I20180213002607); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 183 in Washington → Look up another NPI →
Also registered at 1615 Delaware St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shawn Aaron, MDFamily Medicine Physician1578560710
- Basim Ali, M.B.B.SGastroenterology Physician1467081521
- Pamela AlwineNurse's Aide1780120089
- Lance Amols, M.D.Psychiatry Physician1780978304
- Brock Amos, CRNACertified Registered Nurse Anesthetist1295807717
- Kurt Anderson, PHARMDGeriatric Pharmacist1790231280
Verify Guangquan Zhao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60331815Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.3 times the Medicare Part D claims of the average medical oncology physician in 2024
2,333 Medicare Part D claims for 298 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 212 claims were for opioids.
Most prescribed
- Prochlorperazine Maleate159 claims
- Anastrozole150 claims
- Prednisone139 claims
- Loperamide111 claims
- Lidocaine-Prilocaine97 claims
- Potassium Chloride96 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $15.00
1 payment: education; the largest payer was Aveo Pharmaceuticals, Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- PeacehealthLongview, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guangquan Zhao among 183 medical oncology physician records in Washington
Guangquan Zhao, MD is one of 183 medical oncology physician records with a practice address in Washington. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 60% of them.
- NPI issued2007 · 60% of these records are older, 29% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1984 · median 1998 among the 112 with a school on file
- Record last updated2018 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Washington
There are 183 medical oncology physician records in Washington.
All 183 in Washington → Every provider in Longview → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Willard Andes, MDLongview, WA 986321639215932
- Helen Goldberg, MDLongview, WA 986321790723666
- Jonathan Polikoff, MDLongview, WA 986321497822332
- Zafer Yildirim, MD,PHDLongview, WA 986321508858812
- Stephen Chandler, MDVancouver, WA 986641043437098
- Katerina Erokhina, D.O.Vancouver, WA 986641437404571
- Gang Ye, MDVancouver, WA 986641245229137
- Marcus Braun, M.D.Vancouver, WA 986841235132309
Common questions
What is Guangquan Zhao, MD's NPI number?
Guangquan Zhao, MD's National Provider Identifier (NPI) is 1710197314, issued on May 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Guangquan Zhao, MD located?
The NPPES record lists a practice address at 1615 Delaware St, Longview, WA, 98632. Phone: (360) 414-7878. Providers update this record themselves, so call before visiting.
How can I verify Guangquan Zhao, MD's license?
NPPES lists Washington license number MD60331815, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Guangquan Zhao, MD prescribe under Medicare Part D?
In 2024, Guangquan Zhao, MD had 2,333 Medicare Part D claims for 298 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.