Dieu Thu Khoa Nguyen, MD
Internal Medicine Physician · San Fernando, CA
Dieu Thu Khoa Nguyen, MD is an internal medicine physician with a practice address in San Fernando, California, and NPI 1720013105, issued on Jul 12, 2006. Check the license (California G080843, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Dieu Thu Khoa Nguyen
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G080843 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1212 Pico Street, San Fernando, CA 91340
- Phone
- (818) 837-6969
- Enumerated
- Jul 12, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20051115000594); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1212 Pico Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sung KimAmbulatory Care Registered Nurse1518496892
Verify Dieu Thu Khoa Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G080843Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,528 Medicare Part D claims for 99 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Atorvastatin Calcium132 claims
- Amlodipine Besylate101 claims
- Metformin Hcl90 claims
- Losartan Potassium89 claims
- Jardiance58 claims
- Glimepiride56 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.
Bills Medicare through one group practice
- County OF Los AngelesSan Fernando, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dieu Thu Khoa Nguyen among 17,696 internal medicine physician records in California
Dieu Thu Khoa 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
- Graduated1993 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 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).
7 internal medicine physician records list a practice address in San Fernando
They are 7 of the 684 NPPES records with a practice address in San Fernando, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Fernando → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Silvia Darie, M.D.San Fernando, CA 913401104827989
- Stephanie Green, MDSan Fernando, CA 913401114045200
- Hafiz Parray, MDSan Fernando, CA 913401932297710
- Albert Pascual, M.D.San Fernando, CA 913401053303719
- Jennifer Sayles, M.D.San Fernando, CA 913401932193703
- Michael Wallack, M.D.San Fernando, CA 913401689791139
- Fredric Adler, MDSylmar, CA 913421356376735
- Janet Au, MDSylmar, CA 913421932126570
Common questions
What is Dieu Thu Khoa Nguyen, MD's NPI number?
Dieu Thu Khoa Nguyen, MD's National Provider Identifier (NPI) is 1720013105, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Dieu Thu Khoa Nguyen, MD located?
The NPPES record lists a practice address at 1212 Pico Street, San Fernando, CA, 91340. Phone: (818) 837-6969. Providers update this record themselves, so call before visiting.
How can I verify Dieu Thu Khoa Nguyen, MD's license?
NPPES lists California license number G080843, 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 Dieu Thu Khoa Nguyen, MD prescribe under Medicare Part D?
In 2024, Dieu Thu Khoa Nguyen, MD had 1,528 Medicare Part D claims for 99 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.