FANGDI SUN MD
NPI 1861996175
Internal Medicine - Medical Oncology in Stanford, CA
About Fangdi Sun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FANGDI SUN MD (NPI 1861996175) is an individual medical oncology provider in Stanford, California, licensed in California (A165364) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, maintains a secondary practice location in Palo Alto, and is a graduate of Harvard Medical School (2018).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Fangdi Sun Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94305 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Fangdi Sun's NPI number?
The NPI number for Fangdi Sun is 1861996175. It was assigned to this individual provider in the NPPES registry on March 21, 2018.
Where is Fangdi Sun located?
Fangdi Sun practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.
What is Fangdi Sun's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Fangdi Sun enrolled in Medicare?
Yes. Fangdi Sun is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Fangdi Sun was last updated on October 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Fangdi Sun, MD · NPI 1861996175
Medical Oncology physician in Stanford, California. Individual provider, active in the CMS NPPES registry since March 21, 2018.
## Identity
- **NPI:** 1861996175 (Entity type: Individual)
- **Enumerated:** March 21, 2018
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** A165364 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, CA 94305-2200
- **Phone:** (650) 723-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Harvard Medical School, class of 2018
## Record status
- **NPPES last updated:** October 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1861996175) · Data from the CMS NPPES public registry.