Alexander Nguyen, DMD
Dentist · Rancho Santa Margarita, CA
Alexander Nguyen, DMD is a dentist with a practice address in Rancho Santa Margarita, California, and NPI 1184347643, issued on Sep 20, 2022. Check the license (California 108102, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexander Nguyen
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- License number
- 108102 CA
Self-reported in NPPES; status is on the state search - Practice location
- 50 Castletree, Rancho Santa Margarita, CA 92688
- Phone
- (949) 350-1562
- Enumerated
- Sep 20, 2022
- Record last updated
- Sep 20, 2022
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Verify Alexander Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 108102Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average dentist in 2024
40 Medicare Part D claims for 12 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Risperidone14 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: $81.36
2 payments; by number, the most common kind was food and beverage; the largest payer was Zimvie Inc. The 31,974 providers of this specialty with any payment received $540.36 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.
Alexander Nguyen among 14,729 dentist records in California
Alexander Nguyen, DMD is one of 14,729 dentist records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 86% of them.
- NPI issued2022 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2022 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 dentist records list a practice address in Rancho Santa Margarita
They are 11 of the 479 NPPES records with a practice address in Rancho Santa Margarita, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Rancho Santa Margarita → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Marjan Arman, DDSRancho Santa Margarita, CA 926881801455340
- Paul DayRancho Santa Margarita, CA 926881811393887
- Rinesh Ganatra, DDSRancho Santa Margarita, CA 926881013085802
- Paul Hoppe, DDSRancho Santa Margarita, CA 926881558385575
- Morvarid Madani, D.M.D.Rancho Santa Margarita, CA 926881255608543
- Katayoun Massoudi, DDSRancho Santa Margarita, CA 926881831280288
- Trina Melancon, D.M.D.Rancho Santa Margarita, CA 926881497194005
- Azin Sharif, DDSRancho Santa Margarita, CA 926881023769908
Common questions
What is Alexander Nguyen, DMD's NPI number?
Alexander Nguyen, DMD's National Provider Identifier (NPI) is 1184347643, issued on Sep 20, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Nguyen, DMD located?
The NPPES record lists a practice address at 50 Castletree, Rancho Santa Margarita, CA, 92688. Phone: (949) 350-1562. Providers update this record themselves, so call before visiting.
How can I verify Alexander Nguyen, DMD's license?
NPPES lists California license number 108102, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Alexander Nguyen, DMD prescribe under Medicare Part D?
In 2024, Alexander Nguyen, DMD had 40 Medicare Part D claims for 12 beneficiaries; the average among dentist prescribers was 86. 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.