DONG HAN YAO MD
NPI 1639639784
Emergency Medicine in Stanford, CA
About Dong Han Yao Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DONG HAN YAO MD (NPI 1639639784) is an individual emergency medicine provider in Stanford, California, licensed in California (A179576) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
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
Dong Han Yao 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Dong Han Yao's NPI number?
The NPI number for Dong Han Yao is 1639639784. It was assigned to this individual provider in the NPPES registry on March 24, 2019.
Where is Dong Han Yao located?
Dong Han Yao practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.
What is Dong Han Yao's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Dong Han Yao enrolled in Medicare?
Yes. Dong Han Yao 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 Dong Han Yao was last updated on October 1, 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.
# Dong Han Yao, MD · NPI 1639639784
Emergency Medicine physician in Stanford, California. Individual provider, active in the CMS NPPES registry since March 24, 2019.
## Identity
- **NPI:** 1639639784 (Entity type: Individual)
- **Enumerated:** March 24, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A179576 (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:** Other, class of 2019
## Record status
- **NPPES last updated:** October 1, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1639639784) · Data from the CMS NPPES public registry.