Ronald Nguyen, MD
Anesthesiology Physician · Santa Ana, CA
Ronald Nguyen, MD is an anesthesiology physician with a practice address in Santa Ana, California, and NPI 1720436736, issued on May 31, 2016. Check the license (California 142461, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ronald Nguyen
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 142461 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2802 S Diamond St, Santa Ana, CA 92704
- Phone
- (714) 924-4830
- Enumerated
- May 31, 2016
- Record last updated
- May 31, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180809000610); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Verify Ronald Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 142461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $121.63
1 payment: food and beverage; the largest payer was Pacira Pharmaceuticals Incorporated. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Orange Coast Anesthesia IncLos Alamitos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ronald Nguyen among 7,571 anesthesiology physician records in California
Ronald Nguyen, MD 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 2016, is newer than 80% of them.
- NPI issued2016 · 80% of these records are older, 17% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2014 · median 2006 among the 4,868 with a school on file
- Record last updated2016 · 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 Santa Ana → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Lowell Boehland, M.D.Santa Ana, CA 927041679645600
- Jim Nguyen, M.D.Santa Ana, CA 927041104237742
- Atef Rafla, M.D.Santa Ana, CA 927041497796858
- Manuel Saenz, MDSanta Ana, CA 927041184796492
- Russell Taylor, MDSanta Ana, CA 927041891006706
- Ying-Kan Tien, MDSanta Ana, CA 927041831271055
- Henry Wee, MDSanta Ana, CA 927041376561860
- Catherine Chung, MDSanta Ana, CA 927051205820586
Common questions
What is Ronald Nguyen, MD's NPI number?
Ronald Nguyen, MD's National Provider Identifier (NPI) is 1720436736, issued on May 31, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Nguyen, MD located?
The NPPES record lists a practice address at 2802 S Diamond St, Santa Ana, CA, 92704. Phone: (714) 924-4830. Providers update this record themselves, so call before visiting.
How can I verify Ronald Nguyen, MD's license?
NPPES lists California license number 142461, 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.