Ronald D. Lau, MD
Radiation Oncology Physician · Los Angeles, CA
Ronald D. Lau, MD is a radiation oncology physician with a practice address in Los Angeles, California, and NPI 1578639993, issued on Nov 28, 2006. Check the license (California G37542, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ronald D. Lau
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- G37542 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1441 Eastlake Ave, Los Angeles, CA 90089
- Phone
- (323) 865-3050
- Enumerated
- Nov 28, 2006
- Record last updated
- Apr 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 00G375420 CA
- Medicare enrollment
- Enrolled (PECOS I20050215000483); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1977
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 1441 Eastlake Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Agulnik, MDMedical Oncology Physician1164448734
- Sandra AlgazeMedical Oncology Physician1861886707
- Paige Asawa, LMFTMarriage & Family Therapist1487296406
- Akbar Ashrafi, MDStudent in an Organized Health Care Education/Training Program1063913531
- Cherry AuHematology & Oncology Physician1346828076
- Raed Azhar, M.DUrology Physician1093061053
Verify Ronald D. Lau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G37542Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 4 group practices
- Bay Area Hospital DistrictCoos Bay, OR
- Olympic Medical PhysiciansSequim, WA
- Usc Care Medical Group IncLos Angeles, CA
- White Memorial Medical CenterLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald D. Lau among 735 radiation oncology physician records in California
Ronald D. Lau, MD is one of 735 radiation oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 55% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1977 · median 2005 among the 545 with a school on file
- Record last updated2016 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Los Angeles → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Leslie Ballas, MDLos Angeles, CA 900891235388901
- Eric Chang, M.D.Los Angeles, CA 900891306930342
- Adam Garsa, M.D.Los Angeles, CA 900891306008768
- Jennifer Ho, MDLos Angeles, CA 900891740626019
- David Hong, M.D.Los Angeles, CA 900891134464795
- Richard Jennelle, M.D.Los Angeles, CA 900891215053335
- Daniel Kim, M.D.Los Angeles, CA 900891306156153
- Lauren Lukas, MDLos Angeles, CA 900891114150562
Common questions
What is Ronald D. Lau, MD's NPI number?
Ronald D. Lau, MD's National Provider Identifier (NPI) is 1578639993, issued on Nov 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ronald D. Lau, MD located?
The NPPES record lists a practice address at 1441 Eastlake Ave, Los Angeles, CA, 90089. Phone: (323) 865-3050. Providers update this record themselves, so call before visiting.
How can I verify Ronald D. Lau, MD's license?
NPPES lists California license number G37542, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.