Thu Ngoc Nguyen, MD
Family Medicine Physician · Aliso Viejo, CA
Thu Ngoc Nguyen, MD is a family medicine physician with a practice address in Aliso Viejo, California, and NPI 1114422888, issued on Mar 26, 2018. Check the license (California A164654, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thu Ngoc Nguyen
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A164654 CA
Self-reported in NPPES; status is on the state search - Practice location
- 26671 Aliso Creek RD Ste 101, Aliso Viejo, CA 92656
- Phone
- (949) 791-3107
- Enumerated
- Mar 26, 2018
- Record last updated
- Apr 28, 2023
- Fax
- (949) 791-3184
- Medicare enrollment
- Enrolled (PECOS I20200911002817); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 26671 Aliso Creek RD Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sharon Hoier, NPAcute Care Nurse Practitioner1437537388
- Jean Michelle Mayuga, FNP-CFamily Nurse Practitioner1154802593
Verify Thu Ngoc Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A164654Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average family medicine physician in 2024
742 Medicare Part D claims for 532 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone91 claims
- Nitrofurantoin Mono-Macro81 claims
- Amoxicillin-Clavulanate Potass63 claims
- Cephalexin61 claims
- Doxycycline Hyclate50 claims
- Amoxicillin43 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
- Hmts IncHuntington Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thu Ngoc Nguyen among 17,133 family medicine physician records in California
Thu Ngoc Nguyen, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 82% of them.
- NPI issued2018 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2018 · median 2005 among the 10,652 with a school on file
- Record last updated2023 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 family medicine physician records list a practice address in Aliso Viejo
They are 17 of the 568 NPPES records with a practice address in Aliso Viejo, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Aliso Viejo → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Chad Abbott, MDAliso Viejo, CA 926561285831602
- Anna Askari, MDAliso Viejo, CA 926561124515341
- Aaron Boor, D.O.Aliso Viejo, CA 926561598727216
- Kahesha Franklin, M.D.Aliso Viejo, CA 926561033493424
- Brian Hauser, M.D.Aliso Viejo, CA 926561982674438
- Amir JourabchiAliso Viejo, CA 926561184159337
- Ronald Mandel, D.O.Aliso Viejo, CA 926561659335420
- Tanushree Nair, DOAliso Viejo, CA 926561437730876
Common questions
What is Thu Ngoc Nguyen, MD's NPI number?
Thu Ngoc Nguyen, MD's National Provider Identifier (NPI) is 1114422888, issued on Mar 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Thu Ngoc Nguyen, MD located?
The NPPES record lists a practice address at 26671 Aliso Creek RD Ste 101, Aliso Viejo, CA, 92656. Phone: (949) 791-3107. Providers update this record themselves, so call before visiting.
How can I verify Thu Ngoc Nguyen, MD's license?
NPPES lists California license number A164654, 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 Thu Ngoc Nguyen, MD prescribe under Medicare Part D?
In 2024, Thu Ngoc Nguyen, MD had 742 Medicare Part D claims for 532 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.