William Bonner Cain, M.D.
Anesthesiology Physician · Anaheim, CA
William Bonner Cain, M.D. is an anesthesiology physician with a practice address in Anaheim, California, and NPI 1356310973, issued on Mar 16, 2006. Check the license (California G77442, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Bonner Cain
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- G77442 CA
Self-reported in NPPES; status is on the state search - Practice location
- 411 N Lakeview Ave, Anaheim, CA 92807
- Phone
- (714) 279-4000
- Enumerated
- Mar 16, 2006
- Record last updated
- Oct 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00G774420 CA
- Medicare enrollment
- Enrolled (PECOS I20050414000857); accepts Medicare assignment
- Medical or professional school
- University Of Southern California Keck School Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 411 N Lakeview Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Bonner Cain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77442Check 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 one group practice
- Southern California Permanente Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Bonner Cain among 7,571 anesthesiology physician records in California
William Bonner Cain, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1992 · median 2006 among the 4,868 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in California
There are 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Anaheim → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Thomas Booy, MDAnaheim, CA 928071790856748
- Sung Choi, M.D.Anaheim, CA 928071336251701
- Donny Chung, MDAnaheim, CA 928071063583987
- Peter Jong, MDAnaheim, CA 928071528135415
- David Leong, MDAnaheim, CA 928071558432443
- Wayne Liang, M.D.Anaheim, CA 928071952317489
- Sepand Mansouri, MDAnaheim, CA 928071265509152
- Alison Mc Clure, MDAnaheim, CA 928071215008198
Common questions
What is William Bonner Cain, M.D.'s NPI number?
William Bonner Cain, M.D.'s National Provider Identifier (NPI) is 1356310973, issued on Mar 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Bonner Cain, M.D. located?
The NPPES record lists a practice address at 411 N Lakeview Ave, Anaheim, CA, 92807. Phone: (714) 279-4000. Providers update this record themselves, so call before visiting.
How can I verify William Bonner Cain, M.D.'s license?
NPPES lists California license number G77442, 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.