CHRISTOPHER SIYUAN YANG MD
NPI 1174006571
Dermatology in Stanford, CA
About Christopher Siyuan Yang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTOPHER SIYUAN YANG MD (NPI 1174006571) is an individual dermatology provider in Stanford, California, licensed in California (A208347) and active in the NPI registry since September 2018. He is enrolled in Medicare PECOS and maintains a secondary practice location in Chicago.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Christopher Siyuan Yang Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Christopher Yang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 clinicians in this Medicare group
Palo Alto, CA 94304
- Reassigned Medicare billing, California enrollment
- 3,617 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Christopher Yang's NPI number?
The NPI number for Christopher Yang is 1174006571. It was assigned to this individual provider in the NPPES registry on September 11, 2018.
Where is Christopher Yang located?
Christopher Yang practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.
What is Christopher Yang's specialty?
The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.
Is Christopher Yang enrolled in Medicare?
Yes. Christopher Yang is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Christopher Yang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Yang reassigns Medicare benefits to 2 organizations: Stanford Health Care (Stanford, CA) and Lpch Medical Group Div Of Lucile (Palo Alto, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Christopher Yang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Christopher Yang was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Christopher Siyuan Yang, MD · NPI 1174006571
Dermatology physician in Stanford, California. Individual provider, active in the CMS NPPES registry since September 11, 2018.
## Identity
- **NPI:** 1174006571 (Entity type: Individual)
- **Enumerated:** September 11, 2018
- **Primary specialty:** Dermatology · taxonomy 207N00000X
- **State license:** A208347 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, CA 94305-2200
- **Phone:** (650) 723-4000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Stanford Health Care (NPI 1437292927, Stanford, CA); Lpch Medical Group Div Of Lucile (NPI 1417907940, Palo Alto, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 24, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1174006571) · Data from the CMS NPPES public registry.