Robert Wenchen Hsieh, MD
Medical Oncology Physician · Stanford, CA
Robert Wenchen Hsieh, MD is a medical oncology physician with a practice address in Stanford, California, and NPI 1164714853, issued on May 12, 2011. Check the license (California A114705, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Wenchen Hsieh
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- A114705 CA
Self-reported in NPPES; status is on the state search - Practice location
- 875 Blake Wilbur Dr Ste 1205A, Stanford, CA 94305
- Phone
- (650) 498-6000
- Enumerated
- May 12, 2011
- Record last updated
- May 7, 2024
- Medicare enrollment
- Enrolled (PECOS I20161128002595); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Verify Robert Wenchen Hsieh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A114705Check 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
17 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 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.
Robert Wenchen Hsieh among 447 medical oncology physician records in California
Robert Wenchen Hsieh, 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 2011, is newer than 67% of them.
- NPI issued2011 · 67% of these records are older, 28% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2009 · median 2004 among the 312 with a school on file
- Record last updated2024 · 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).
82 medical oncology physician records list a practice address in Stanford
They are 82 of the 5,606 NPPES records with a practice address in Stanford, and 447 medical oncology physician records in California.
All 447 in California → Every provider in Stanford → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Priyamvadha Chakravarthi, M.D.Stanford, CA 943051437148061
- Gregory Heestand, M.D.Stanford, CA 943051770568867
- Haruka Itakura, M.D.Stanford, CA 943051669413449
- Howard Lee, MDStanford, CA 943051891702312
- Donald Lombardi, MDStanford, CA 943051053339788
- Min Lu, MDStanford, CA 943051568488526
- Pamela Munster, MDStanford, CA 943051619997145
- Mark Pegram, M.D.Stanford, CA 943051356361554
Common questions
What is Robert Wenchen Hsieh, MD's NPI number?
Robert Wenchen Hsieh, MD's National Provider Identifier (NPI) is 1164714853, issued on May 12, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Robert Wenchen Hsieh, MD located?
The NPPES record lists a practice address at 875 Blake Wilbur Dr Ste 1205A, Stanford, CA, 94305. Phone: (650) 498-6000. Providers update this record themselves, so call before visiting.
How can I verify Robert Wenchen Hsieh, MD's license?
NPPES lists California license number A114705, 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 Robert Wenchen Hsieh, MD prescribe under Medicare Part D?
In 2024, Robert Wenchen Hsieh, MD had 17 Medicare Part D claims; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Robert Wenchen Hsieh, MD's MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.