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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOY LI MD
NPI 1609512060
Emergency Medicine in Walnut Creek, CA

Active since May 09, 2022PECOS Enrolled
1425 S MAIN ST, WALNUT CREEK, CA 94596(925) 295-4070 Get Directions Write a Review

NPPES record last updated: August 23, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Aug 23, 2026, May 9, 2022 (2 updates tracked since 2022).

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 and maintains a secondary practice location in Antioch.

NPPES Registry Identity

NPI1609512060
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. JOY LICredential: MD
Location Address1425 S MAIN STWalnut Creek, CA 94596-5318
Mailing Address1425 S Main StWalnut Creek, CA 94596-5318
Phone(925) 295-4070
Sole ProprietorNo
Enumeration DateMay 9, 2022
Last NPPES UpdateAugust 23, 20262 updates tracked since enumeration
NPPES CertifiedAugust 23, 2026
✔ NPI 1609512060 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · A207306
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
1425 S MAIN ST, Walnut Creek, CA 94596
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Secondary Practice Location 1

Location 14501 Sand Creek RdAntioch, CA 94531-8687 · Phone (925) 813-3100

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Joy Li Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

BROOK ANDREW WOOLLEY M.D.
Emergency Medicine
1425 S MAIN ST, EMERGENCY MEDICINE DEPARTMENT
WALNUT CREEK, CA 94596
Contra Costa County (925) 295-5100
DR. THOMAS CRESANTE D.O.
Hospitalist
1425 S MAIN ST, KAISER PERMANENTE WALNUT CREEK ATTN: HBS DEPT
WALNUT CREEK, CA 94596
Contra Costa County (925) 295-4643
SARA WON MD
Obstetrics & Gynecology
1425 S MAIN ST
WALNUT CREEK, CA 94596
Contra Costa County (925) 295-4040
KAISER PERMANENTE
General Acute Care Hospital
1425 S MAIN ST
WALNUT CREEK, CA 94596
Contra Costa County (925) 295-4000
MICHELLE CABLE VU CRNA
Nurse Anesthetist, Certified Registered
1425 S MAIN ST
WALNUT CREEK, CA 94596
Contra Costa County (925) 295-4000
DR. JESUS GIL JIMENEZ MD
Surgery (Vascular Surgery)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Contra Costa County (925) 295-4110
MR. EDWARD HAL PIECZENIK L.C.S.W.
Social Worker (Clinical)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Contra Costa County (925) 295-5237
CARLOS A. CROMEYER MD
Psychiatry & Neurology (Neurology)
1425 S MAIN ST
WALNUT CREEK, CA 94596
Contra Costa County (925) 295-4000

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 enrollment system.

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 17 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.