Fangdi Sun, MD
Medical Oncology Physician · Stanford, CA
Fangdi Sun, MD is a medical oncology physician with a practice address in Stanford, California, and NPI 1861996175, issued on Mar 21, 2018. Check the license (California A165364, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Fangdi Sun
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- A165364 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Mar 21, 2018
- Record last updated
- Oct 6, 2025
- Medicare enrollment
- Enrolled (PECOS I20210712002067); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cooper Aakhus, MDEmergency Medicine Physician1194351007
- Oliver Aalami, M.D.Vascular Surgery Physician1225229024
- Alistair Aaronson, MDInternal Medicine Physician1457628760
- Sumaira Aasi, MDMOHS-Micrographic Surgery Physician1780675181
- Fahim Abbasi, M.D.Internal Medicine Physician1841484037
- Mohamad Abbass, MDNeurological Surgery Physician1679492151
Verify Fangdi Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A165364Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average medical oncology physician in 2024
76 Medicare Part D claims for 27 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Erlotinib Hcl11 claims
- Ondansetron Hcl11 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.
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.
Fangdi Sun among 447 medical oncology physician records in California
Fangdi Sun, 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 2018, is newer than 89% of them.
- NPI issued2018 · 89% of these records are older, 7% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2018 · median 2004 among the 312 with a school on file
- Record last updated2025 · 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 Fangdi Sun, MD's NPI number?
Fangdi Sun, MD's National Provider Identifier (NPI) is 1861996175, issued on Mar 21, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Fangdi Sun, MD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Fangdi Sun, MD's license?
NPPES lists California license number A165364, 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 Fangdi Sun, MD prescribe under Medicare Part D?
In 2024, Fangdi Sun, MD had 76 Medicare Part D claims for 27 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.