YENTING CHEN MD
NPI 1326250440
Emergency Medicine in San Mateo, CA
About Yenting Chen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YENTING CHEN MD (NPI 1326250440) is an individual emergency medicine provider in San Mateo, California, licensed in California (A 103535) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, maintains a secondary practice location in Berkeley, and is a graduate of University Of California, Davis School Of Medicine (2004).
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 and accepts Medicare assignment
Yenting Chen 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.
Medicare Billing Reassignment
Medicare enrollment records show Yenting Chen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Palo Alto, CA 94301
- Reassigned Medicare billing, California enrollment
- 4,479 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.
Areas of Expertise CMS Part B claims 9
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 94401 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.
SAN MATEO, CA 94401
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 Yenting Chen's NPI number?
The NPI number for Yenting Chen is 1326250440. It was assigned to this individual provider in the NPPES registry on May 3, 2007.
Where is Yenting Chen located?
Yenting Chen practices at 100 S San Mateo Dr, San Mateo, CA 94401. The listed phone number is (650) 696-4427.
What is Yenting Chen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Yenting Chen enrolled in Medicare?
Yes. Yenting Chen 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.
Which organization bills Medicare for Yenting Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yenting Chen reassigns Medicare benefits to Sutter Bay Medical Foundation (Palo Alto, CA). The 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 Yenting Chen'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 Yenting Chen was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Yenting Chen, MD · NPI 1326250440
Emergency Medicine physician in San Mateo, California. Individual provider, active in the CMS NPPES registry since May 3, 2007.
## Identity
- **NPI:** 1326250440 (Entity type: Individual)
- **Enumerated:** May 3, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A 103535 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 S SAN MATEO DR, San Mateo, CA 94401-3805
- **Phone:** (650) 696-4427
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Sutter Bay Medical Foundation (NPI 1013950807, Palo Alto, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Davis School Of Medicine, class of 2004
## Record status
- **NPPES last updated:** July 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1326250440) · Data from the CMS NPPES public registry.