RONALD D LAU MD
NPI 1578639993
Radiology - Radiation Oncology in Los Angeles, CA
About Ronald D Lau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RONALD D LAU MD (NPI 1578639993) is an individual radiation oncology provider in Los Angeles, California, licensed in California (G37542) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS, is affiliated with Olympic Medical Center, and is a graduate of Loma Linda University School Of Medicine (1977).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Accepted Insurance
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
Ronald D Lau 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
6Medicare enrollment records show Ronald Lau reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 2,445 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 139 clinicians in this Medicare group
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 131 clinicians in this Medicare group
Glendale, CA 91206
- Reassigned Medicare billing, California enrollment
- 164 clinicians in this Medicare group
Coos Bay, OR 97420
- Reassigned Medicare billing, Oregon enrollment
- 327 clinicians in this Medicare group
Port Angeles, WA 98362
- Reassigned Medicare billing, Washington enrollment
- 112 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Olympic Medical Center
Acute Care Hospitals · Port Angeles, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90089 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.
LOS ANGELES, CA 90089
LOS ANGELES, CA 90089
LOS ANGELES, CA 90089
LOS ANGELES, CA 90089
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 Ronald Lau's NPI number?
The NPI number for Ronald Lau is 1578639993. It was assigned to this individual provider in the NPPES registry on November 28, 2006.
Where is Ronald Lau located?
Ronald Lau practices at 1441 Eastlake Ave, Los Angeles, CA 90089. The listed phone number is (323) 865-3050.
What is Ronald Lau's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Ronald Lau enrolled in Medicare?
Yes. Ronald Lau 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 Ronald Lau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Lau reassigns Medicare benefits to 6 organizations: Usc Care Medical Group, Inc (Los Angeles, CA), Adventist Health Physicians Network (Los Angeles, CA), White Memorial Medical Center (Los Angeles, CA), Glendale Adventist Medical Center (Glendale, CA), Bay Area Hospital District (Coos Bay, OR) and 1 more organization, 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 Ronald Lau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ronald Lau accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Ronald Lau as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ronald Lau affiliated with any hospitals?
According to CMS data, Ronald Lau is affiliated with Olympic Medical Center.
When was this NPI record last updated?
The NPPES record for Ronald Lau was last updated on April 18, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Ronald D Lau, MD · NPI 1578639993
Radiation Oncology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since November 28, 2006.
## Identity
- **NPI:** 1578639993 (Entity type: Individual)
- **Enumerated:** November 28, 2006
- **Primary specialty:** Radiology - Radiation Oncology · taxonomy 2085R0001X
- **State license:** G37542 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1441 EASTLAKE AVE, Los Angeles, CA 90089-0112
- **Phone:** (323) 865-3050
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Usc Care Medical Group, Inc (NPI 1902846306, Los Angeles, CA); Adventist Health Physicians Network (NPI 1679973267, Los Angeles, CA); White Memorial Medical Center (NPI 1215927470, Los Angeles, CA); Glendale Adventist Medical Center (NPI 1336138403, Glendale, CA); Bay Area Hospital District (NPI 1225016561, Coos Bay, OR); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loma Linda University School Of Medicine, class of 1977
## Record status
- **NPPES last updated:** April 18, 2016
- **Other identifiers:** Medicare UPIN D72115; Medicaid 00G375420 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1578639993) · Data from the CMS NPPES public registry.