Wenji Guo, MD
Medical Oncology Physician · San Diego, CA
Wenji Guo, MD is a medical oncology physician with a practice address in San Diego, California, and NPI 1538604392, issued on Jan 3, 2017. Check the license (California 209443, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Wenji Guo
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- 209443 CA
036165015 IL
125.076280 IL
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Arbor Dr, San Diego, CA 92103
- Phone
- (800) 926-8273
- Enumerated
- Jan 3, 2017
- Record last updated
- Jun 15, 2026
- Fax
- (888) 539-8781
- Medicare enrollment
- Enrolled (PECOS I20250731002061); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 200 W Arbor Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Geraldine Abcede, RNCertified Registered Nurse Anesthetist1982384046
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- Kristy AbelCertified Registered Nurse Anesthetist1962113035
- Paula Abeleda, NPFamily Nurse Practitioner1558945022
Verify Wenji Guo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 209443Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average medical oncology physician in 2024
12 Medicare Part D claims, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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: $67.97
1 payment: food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.
One hospital affiliation
- The University OF Chicago Medical CenterChicago, IL · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Wenji Guo among 447 medical oncology physician records in California
Wenji Guo, MD is one of 447 medical oncology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 85% of them.
- NPI issued2017 · 85% of these records are older, 11% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2020 · median 2004 among the 312 with a school on file
- Record last updated2026 · 41% 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 California 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 California
There are 447 medical oncology physician records in California.
All 447 in California → Every provider in San Diego → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Kaitlyn Dykes, MDSan Diego, CA 921031861952632
- Bassel El-Rayes, MDSan Diego, CA 921031437196433
- Siddharth Iyengar, MDSan Diego, CA 921031003376187
- Tanim Jain, MDSan Diego, CA 921031528695145
- Olivia Main, MDSan Diego, CA 921031225664352
- Kelly McCann, M.D., PH.D.San Diego, CA 921031942599915
- Christina SniderSan Diego, CA 921031356960751
- Alexander TongSan Diego, CA 921031356804926
Common questions
What is Wenji Guo, MD's NPI number?
Wenji Guo, MD's National Provider Identifier (NPI) is 1538604392, issued on Jan 3, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Wenji Guo, MD located?
The NPPES record lists a practice address at 200 W Arbor Dr, San Diego, CA, 92103. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.
How can I verify Wenji Guo, MD's license?
NPPES lists California license number 209443, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Wenji Guo, MD prescribe under Medicare Part D?
In 2024, Wenji Guo, MD had 12 Medicare Part D claims; 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.