Elizabeth U. Nguyen, MD
Internal Medicine Physician · Camarillo, CA
Elizabeth U. Nguyen, MD is an internal medicine physician with a practice address in Camarillo, California, and NPI 1770528028, issued on Jun 19, 2006. Check the license (California A90331, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Elizabeth U. Nguyen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A90331 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3801 Las Posas RD, Camarillo, CA 93010
- Phone
- (805) 389-0099
- Enumerated
- Jun 19, 2006
- Record last updated
- Jun 7, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (805) 389-4884
- Medicaid ID
- 00A903310 CA
- Medicare enrollment
- Enrolled (PECOS I20051026000555); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 3801 Las Posas RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Elizabeth U. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90331Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
212 Medicare Part D claims for 86 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium20 claims
- Prednisone11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $315.55
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Inpatient Specialists OF California PCCamarillo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth U. Nguyen among 17,696 internal medicine physician records in California
Elizabeth U. Nguyen, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2001 · median 2004 among the 11,065 with a school on file
- Record last updated2010 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 internal medicine physician records list a practice address in Camarillo
They are 26 of the 2,656 NPPES records with a practice address in Camarillo, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Camarillo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jeffrey Allan, MDCamarillo, CA 930101407870652
- Karen Fields, MDCamarillo, CA 930101497779656
- Afrouz Gerayli, MDCamarillo, CA 930101801044839
- Christopher Hynum, M.D.Camarillo, CA 930101588722573
- Ragaa Ibrahim, M.D.Camarillo, CA 930101730128364
- Gary Lieb, M.D.Camarillo, CA 930101912935396
- Bennet Lipper, MDCamarillo, CA 930101235129420
- Paul Morin, M.D.Camarillo, CA 930101932148525
Common questions
What is Elizabeth U. Nguyen, MD's NPI number?
Elizabeth U. Nguyen, MD's National Provider Identifier (NPI) is 1770528028, issued on Jun 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth U. Nguyen, MD located?
The NPPES record lists a practice address at 3801 Las Posas RD, Camarillo, CA, 93010. Phone: (805) 389-0099. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth U. Nguyen, MD's license?
NPPES lists California license number A90331, 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.
How much does Elizabeth U. Nguyen, MD prescribe under Medicare Part D?
In 2024, Elizabeth U. Nguyen, MD had 212 Medicare Part D claims for 86 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.