Tien Quang Nguyen, MD
Dermatology Physician · Fountain Valley, CA
Tien Quang Nguyen, MD is a dermatology physician with a practice address in Fountain Valley, California, and NPI 1396741351, issued on Jun 24, 2005. Check the license (California G50454, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tien Quang Nguyen
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License numbers
- G50454 CA
20979 NV
Self-reported in NPPES; status is on the state search - Practice location
- 17271 Brookhurst St, Fountain Valley, CA 92708
- Phone
- (714) 531-2966
- Enumerated
- Jun 24, 2005
- Record last updated
- Apr 1, 2025
- Fax
- (714) 531-3495
- Medicare enrollment
- Enrolled (PECOS I20060914000663); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 17271 Brookhurst St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melanie Anderson, PA-CPhysician Assistant1639540123
- Stephanie Ashqar, PAPhysician Assistant1922877133
- Kellie HoyPhysician Assistant1669820221
- Julie LeFamily Nurse Practitioner1235745563
- Jasmine Li, PA-CMedical Physician Assistant1033880646
- Joanne Mejia, FNP-CFamily Nurse Practitioner1114590056
Verify Tien Quang Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G50454Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.2 times the Medicare Part D claims of the average dermatology physician in 2024
4,181 Medicare Part D claims for 1,216 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Mupirocin608 claims
- Triamcinolone Acetonide537 claims
- Cephalexin453 claims
- Dupixent Pen298 claims
- Taltz Autoinjector234 claims
- Ketoconazole228 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $258,979.65
475 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 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 2 group practices
- Tien Q Nguyen IncFountain Valley, CA
- Tien Q Nguyen MD Dermatology Prof CorpHenderson, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tien Quang Nguyen among 2,083 dermatology physician records in California
Tien Quang Nguyen, MD is one of 2,083 dermatology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1982 · median 2006 among the 1,450 with a school on file
- Record last updated2025 · 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 207N00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in California
There are 2,083 dermatology physician records in California.
All 2,083 in California → Every provider in Fountain Valley → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Andrew Ceavatta, M.D.Fountain Valley, CA 927081164486965
- Brendan Lloyd, M.D.Santa Ana, CA 927051437354289
- Tony Nakhla, D.O.Santa Ana, CA 927051619052248
- Marvous Saunders, MDSanta Ana, CA 927041831147024
- Jacklyn Stotts Joyo, MDSanta Ana, CA 927041477541415
- Elaine Zoberman-Saltiel, M.D.Santa Ana, CA 927041083614986
- Jonathan Baron, MDSanta Ana, CA 927011982686333
- Trevor Muirhead, M.D.Santa Ana, CA 927011386819241
Common questions
What is Tien Quang Nguyen, MD's NPI number?
Tien Quang Nguyen, MD's National Provider Identifier (NPI) is 1396741351, issued on Jun 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Tien Quang Nguyen, MD located?
The NPPES record lists a practice address at 17271 Brookhurst St, Fountain Valley, CA, 92708. Phone: (714) 531-2966. Providers update this record themselves, so call before visiting.
How can I verify Tien Quang Nguyen, MD's license?
NPPES lists California license number G50454, 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 Tien Quang Nguyen, MD prescribe under Medicare Part D?
In 2024, Tien Quang Nguyen, MD had 4,181 Medicare Part D claims for 1,216 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Tien Quang Nguyen, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.