Joseph Charles Beck, M.D.
Radiation Oncology Physician · Antioch, CA
Joseph Charles Beck, M.D. is a radiation oncology physician with a practice address in Antioch, California, and NPI 1740206085, issued on Jul 13, 2006. Check the license (California G17713, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Joseph Charles Beck
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- G17713 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4721 Dallas Ranch RD, Antioch, CA 94531
- Phone
- (925) 778-0679
- Enumerated
- Jul 13, 2006
- Record last updated
- Dec 16, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (925) 778-3567
- Medicaid ID
- 0139013 CA
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 4721 Dallas Ranch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zahora Ally, MDRadiation Oncology Physician1306839915
- Susan Bucker, LCSWClinical Social Worker1588935050
- Jiyon Choi, MDHematology & Oncology Physician1144437567
- Mariam Korah, MDRadiation Oncology Physician1083891543
- Tuan Pham, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1588369342
- Prasad Pillai, MDHematology & Oncology Physician1023174380
Verify Joseph Charles Beck in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G17713Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Joseph Charles Beck among 735 radiation oncology physician records in California
Joseph Charles Beck, M.D. 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 not. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 55% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2010 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 735 in California → Every provider in Antioch → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Zahora Ally, MDAntioch, CA 945311306839915
- Mariam Korah, MDAntioch, CA 945311083891543
- David Eastham, MD, MPHTravis Afb, CA 945351356412050
- Winnifred Wong, DOTravis Afb, CA 945351144554148
- Sravana Chennupati, MDPleasant Hill, CA 945231609193226
- Christine Chung, M.D.Pleasant Hill, CA 945231346438256
- Sophia Rahman, M.D.Pleasant Hill, CA 945231831266741
- Loan Tran, MDPleasant Hill, CA 945231043292410
Common questions
What is Joseph Charles Beck, M.D.'s NPI number?
Joseph Charles Beck, M.D.'s National Provider Identifier (NPI) is 1740206085, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Charles Beck, M.D. located?
The NPPES record lists a practice address at 4721 Dallas Ranch RD, Antioch, CA, 94531. Phone: (925) 778-0679. Providers update this record themselves, so call before visiting.
How can I verify Joseph Charles Beck, M.D.'s license?
NPPES lists California license number G17713, 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.