DR. JOY LI MD
NPI 1609512060
Emergency Medicine in Walnut Creek, CA
About Dr. Joy Li Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOY LI MD (NPI 1609512060) is an individual emergency medicine provider in Walnut Creek, California, licensed in California (A207306) and active in the NPI registry since May 2022. She is enrolled in Medicare PECOS, maintains a secondary practice location in Antioch, and is a graduate of New York Medical College (2022).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Joy Li 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 Joy Li reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Richmond, CA 94801
- Reassigned Medicare billing, California enrollment
- 20,078 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 94596 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.
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
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 Joy Li's NPI number?
The NPI number for Joy Li is 1609512060. It was assigned to this individual provider in the NPPES registry on May 9, 2022.
Where is Joy Li located?
Joy Li practices at 1425 S Main St, Walnut Creek, CA 94596. The listed phone number is (925) 295-4070.
What is Joy Li's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Joy Li enrolled in Medicare?
Yes. Joy Li 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 Joy Li's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joy Li reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 Joy Li'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 Joy Li was last updated on August 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 58 days 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.
# Dr. Joy Li, MD · NPI 1609512060
Emergency Medicine physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since May 9, 2022.
## Identity
- **NPI:** 1609512060 (Entity type: Individual)
- **Enumerated:** May 9, 2022
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A207306 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1425 S MAIN ST, Walnut Creek, CA 94596-5318
- **Phone:** (925) 295-4070
## 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:** Permanente Medical Group Inc (NPI 1235226531, Richmond, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 2022
## Record status
- **NPPES last updated:** August 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1609512060) · Data from the CMS NPPES public registry.