STEVEN YANN SHIUH CHEN MD
NPI 1386201259
Emergency Medicine in San Gabriel, CA
About Steven Yann Shiuh Chen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEVEN YANN SHIUH CHEN MD (NPI 1386201259) is an individual emergency medicine provider in San Gabriel, California, licensed in California (A177328) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS and is a graduate of University Of Cincinnati College Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses
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
Steven Yann Shiuh 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 Reassignments
5Medicare enrollment records show Steven Chen reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Gabriel, CA 91776
- Reassigned Medicare billing, California enrollment
- 29 clinicians in this Medicare group
Alhambra, CA 91801
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Andy Shen MD Inc
- 50 clinicians in this Medicare group
Tarzana, CA 91356
- Reassigned Medicare billing, California enrollment
- 66 clinicians in this Medicare group
Tustin, CA 92780
- Reassigned Medicare billing, California enrollment
- 17 clinicians in this Medicare group
Bakersfield, CA 93308
- Reassigned Medicare billing, California enrollment
- 48 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 5
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 91776 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.
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 Steven Chen's NPI number?
The NPI number for Steven Chen is 1386201259. It was assigned to this individual provider in the NPPES registry on May 24, 2019.
Where is Steven Chen located?
Steven Chen practices at 438 W Las Tunas Dr, San Gabriel, CA 91776. The listed phone number is (626) 289-5454.
What is Steven Chen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Steven Chen enrolled in Medicare?
Yes. Steven 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 organizations bill Medicare for Steven Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Chen reassigns Medicare benefits to 5 organizations: Emergency Physicians Of San Gabriel Valley (San Gabriel, CA), Andy Shen, M.D., Inc. (Alhambra, CA), Tarzana Emergency Medical Associates (Tarzana, CA), Oc Emergency Physicians (Tustin, CA) and Sunshine Physician Services, PC (Bakersfield, 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 Steven 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 Steven Chen was last updated on June 27, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.
# Steven Yann Shiuh Chen, MD · NPI 1386201259
Emergency Medicine physician in San Gabriel, California. Individual provider, active in the CMS NPPES registry since May 24, 2019.
## Identity
- **NPI:** 1386201259 (Entity type: Individual)
- **Enumerated:** May 24, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A177328 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 438 W LAS TUNAS DR, San Gabriel, CA 91776-1216
- **Phone:** (626) 289-5454
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Emergency Physicians Of San Gabriel Valley (NPI 1366021834, San Gabriel, CA); Andy Shen, M.D., Inc. (NPI 1457427221, Alhambra, CA); Tarzana Emergency Medical Associates (NPI 1235176702, Tarzana, CA); Oc Emergency Physicians (NPI 1124902739, Tustin, CA); Sunshine Physician Services, PC (NPI 1649725466, Bakersfield, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Cincinnati College Of Medicine, class of 2019
## Record status
- **NPPES last updated:** June 27, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1386201259) · Data from the CMS NPPES public registry.