SOPHIA CHONG YI MD
NPI 1699064832
Anesthesiology in Sacramento, CA
About Sophia Chong Yi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SOPHIA CHONG YI MD (NPI 1699064832) is an individual anesthesiology provider in Sacramento, California, licensed in California (A135252) and active in the NPI registry since March 2011. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2011).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
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
Sophia Chong Yi 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
8Medicare enrollment records show Sophia Yi reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sacramento, CA 95817
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Regents Of The Univ Of Ca
- 2,570 clinicians in this Medicare group
Sacramento, CA 95816
- Reassigned Medicare billing, California enrollment
- 4,479 clinicians in this Medicare group
Sacramento, CA 95819
- Reassigned Medicare billing, California enrollment
- 833 clinicians in this Medicare group
Sacramento, CA 95833
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1972877264 (California), NPI 1467825844 (California), NPI 1457593980 (California), NPI 1346615150 (California)
- 3,056 clinicians in this Medicare group
Sacramento, CA 95821
- Reassigned Medicare billing, California enrollment
- 65 clinicians in this Medicare group
Stockton, CA 95210
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 251 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.
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.
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
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 Sophia Yi's NPI number?
The NPI number for Sophia Yi is 1699064832. It was assigned to this individual provider in the NPPES registry on March 28, 2011. The provider is also known as So Chong Yi.
Where is Sophia Yi located?
Sophia Yi practices at 2315 Stockton Blvd, Sacramento, CA 95817. The listed phone number is (916) 734-2011.
What is Sophia Yi's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Sophia Yi enrolled in Medicare?
Yes. Sophia Yi 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 Sophia Yi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sophia Yi reassigns Medicare benefits to 8 organizations: Regents Of The University Of Ca (Sacramento, CA), Sutter Bay Medical Foundation (Sacramento, CA), Cep America - Anesthesia PC (Sacramento, CA), Sutter Valley Medical Foundation (Sacramento, CA), Sacsolano Anesthesia Exchange Medical Group, Inc (Sacramento, CA) and 3 more organizations, listed in the Medicare section above. 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 Sophia Yi'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 Sophia Yi was last updated on March 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Sophia Chong Yi, MD · NPI 1699064832
Anesthesiology physician in Sacramento, California. Individual provider, active in the CMS NPPES registry since March 28, 2011.
## Identity
- **NPI:** 1699064832 (Entity type: Individual)
- **Enumerated:** March 28, 2011
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A135252 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2315 STOCKTON BLVD, Sacramento, CA 95817-2201
- **Phone:** (916) 734-2011
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of Ca (NPI 1063405074, Sacramento, CA); Sutter Bay Medical Foundation (NPI 1003267196, Sacramento, CA); Cep America - Anesthesia PC (NPI 1770014466, Sacramento, CA); Sutter Valley Medical Foundation (NPI 1952327256, Sacramento, CA); Sacsolano Anesthesia Exchange Medical Group, Inc (NPI 1720401284, Sacramento, CA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** March 19, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1699064832) · Data from the CMS NPPES public registry.