John C. Billesdon, M.D.
Gastroenterology Physician · Oxnard, CA
John C. Billesdon, M.D. is a gastroenterology physician with a practice address in Oxnard, California, and NPI 1184648933, issued on Jul 26, 2006. Check the license (California G22785, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John C. Billesdon
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G22785 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2241 Wankel Way, Oxnard, CA 93030
- Phone
- (805) 983-0521
- Enumerated
- Jul 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (805) 983-4186
- Entity
- Type 1 · individual
Also registered at 2241 Wankel Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Brand, MDInternal Medicine Physician1770527608
- Khamaj Dave, MDCardiovascular Disease Physician1275594657
- Esam Obed, MDCardiovascular Disease Physician1568422350
- Richard Rothschild, MDCardiovascular Disease Physician1700847126
- Paul Sanchez, M.D.Gastroenterology Physician1336156207
- David Schmidt, MDCardiovascular Disease Physician1356301220
Verify John C. Billesdon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G22785Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
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- Homan Abdollahzadeh, MDPalm Springs, CA1184634826
- John Abdulian, M.D.Fresno, CA1437114113
- Hussein Abidali, DORancho Cucamonga, CA1205274768
- Alaa Abousaif, MDOrange, CA1235124108
- Donald Abrahm, M.D.Newport Beach, CA1215022405
- Maria Abreu, M.D.West Hollywood, CA1598793374
Common questions
What is John C. Billesdon, M.D.'s NPI number?
John C. Billesdon, M.D.'s National Provider Identifier (NPI) is 1184648933, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John C. Billesdon, M.D. located?
The NPPES record lists a practice address at 2241 Wankel Way, Oxnard, CA, 93030. Phone: (805) 983-0521. Providers update this record themselves, so call before visiting.
How can I verify John C. Billesdon, M.D.'s license?
NPPES lists California license number G22785, 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.