Ricardo Da Roza, M.D.
Medical Oncology Physician · Castro Valley, CA
Ricardo Da Roza, M.D. is a medical oncology physician with a practice address in Castro Valley, California, and NPI 1184669285, issued on Jun 20, 2006. Check the license (California C41444, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Ricardo Da Roza
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- C41444 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20055 Lake Chabot RD, Castro Valley, CA 94546
- Phone
- (510) 888-0657
- Enumerated
- Jun 20, 2006
- Record last updated
- Oct 1, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (510) 886-4532
- Medicaid ID
- 00C414440 CA
- Entity
- Type 1 · individual
Also registered at 20055 Lake Chabot RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Peter Adamczyk, M.D.Neurology Physician1689710915
- Narayana Bulusu, M.D.Urology Physician1821106329
- Wing Chin, M.D.Internal Medicine Physician1124052576
- Catherine Covey, M.D.Specialist1942213764
- Lawrence Dickinson, MDNeurological Surgery Physician1083669592
- Tara Jordan, MMS, PA-CPhysician Assistant1366795395
Verify Ricardo Da Roza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C41444Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Medical Oncology Physician providers in California
There are 447 medical oncology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other medical oncology physician records in California
- Donald Abrams, MDSan Francisco, CA1679530018
- Ranjana Advani, MDStanford, CA1639225121
- Kambiz Afrasiabi, M.D.Anaheim, CA1578572368
- Mark Agulnik, MDLos Angeles, CA1164448734
- David Agus, M.D.Los Angeles, CA1356328249
- Weiyun Ai, MDSan Francisco, CA1649346842
- Shafqat Akhtar, MDRed Bluff, CA1700960788
- Luai Al Rabadi, M.D.San Francisco, CA1659637452
- Michael Alexander, MDSanta Cruz, CA1053321760
- Sandra AlgazeLos Angeles, CA1861886707
Common questions
What is Ricardo Da Roza, M.D.'s NPI number?
Ricardo Da Roza, M.D.'s National Provider Identifier (NPI) is 1184669285, issued on Jun 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ricardo Da Roza, M.D. located?
The NPPES record lists a practice address at 20055 Lake Chabot RD, Castro Valley, CA, 94546. Phone: (510) 888-0657. Providers update this record themselves, so call before visiting.
How can I verify Ricardo Da Roza, M.D.'s license?
NPPES lists California license number C41444, 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. 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.