Quoc Nguyen, MD
Psychiatry Physician · Temecula, CA
Quoc Nguyen, MD is a psychiatry physician with a practice address in Temecula, California, and NPI 1639121379, issued on May 17, 2006. Check the license (California A67516, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Quoc Nguyen
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A67516 CA
Self-reported in NPPES; status is on the state search - Practice location
- 44605 Avenida DE Missiones Ste 206, Temecula, CA 92592
- Phone
- (951) 200-5154
- Enumerated
- May 17, 2006
- Record last updated
- Feb 2, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (951) 302-0800
- Medicare enrollment
- Enrolled (PECOS I20100311000458); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 44605 Avenida DE Missiones Ste 206
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Lee, M.D.Pulmonary Disease Physician1528015906
Verify Quoc Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A67516Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% more Medicare Part D claims than the average psychiatry physician in 2024
1,042 Medicare Part D claims for 129 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Quetiapine Fumarate82 claims
- Trazodone Hcl70 claims
- Clonazepam58 claims
- Lamotrigine56 claims
- Bupropion Hcl Sr50 claims
- Aripiprazole45 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: $686.14
24 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,693 providers of this specialty with any payment received $4,954.93 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
- Integra Health, PCTemecula, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
Other psychiatry physician records in California
- Nancy Aaen, MDNapa, CA1609816669
- Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
- Mekabiz Abaian, MDSan Bernardino, CA1891090163
- Brenda Abarca, MDTorrance, CA1407485527
- Pilar Abascal, M.D.Los Angeles, CA1730528191
- Michele Abbasi, M.D.Westlake Village, CA1093940330
- Zohaib AbbasiMartinez, CA1013392224
- Sandy Abdelkedous, MDFresno, CA1306093109
- Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
- Ezzat Abdelmalek, M.DDana Point, CA1992828826
Common questions
What is Quoc Nguyen, MD's NPI number?
Quoc Nguyen, MD's National Provider Identifier (NPI) is 1639121379, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Quoc Nguyen, MD located?
The NPPES record lists a practice address at 44605 Avenida DE Missiones Ste 206, Temecula, CA, 92592. Phone: (951) 200-5154. Providers update this record themselves, so call before visiting.
How can I verify Quoc Nguyen, MD's license?
NPPES lists California license number A67516, 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 Quoc Nguyen, MD prescribe under Medicare Part D?
In 2024, Quoc Nguyen, MD had 1,042 Medicare Part D claims for 129 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.