Tamuyen Nguyen, M.D.
Dermatology Physician · Upland, CA
Tamuyen Nguyen, M.D. is a dermatology physician with a practice address in Upland, California, and NPI 1710041686, issued on Dec 21, 2006. Check the license (California A80098, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Tamuyen Nguyen
- Credential
- M.D.
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- A80098 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1310 San Bernardino RD, Upland, CA 91786
- Phone
- (909) 946-8600
- Enumerated
- Dec 21, 2006
- Record last updated
- Aug 8, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (909) 946-8604
- Medicare enrollment
- Enrolled (PECOS I20040412001411); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Kansas City, School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 2,083 in California → Look up another NPI →
Also registered at 1310 San Bernardino RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Basim Abdelkarim, MDGastroenterology Physician1932217544
- Mouhanad Alwan, MDObstetrics & Gynecology Physician1760595029
- Lorraine Dominick, WHNPObstetrics & Gynecology Nurse Practitioner1205265931
- Ian Donahue, PA-CPhysician Assistant1023406725
- Noralyne Eini, FNPFamily Nurse Practitioner1811395221
- Amanda Ingalls, PA-CPhysician Assistant1134522501
Verify Tamuyen Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A80098Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average dermatology physician in 2024
283 Medicare Part D claims for 79 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Ketoconazole82 claims
- Triamcinolone Acetonide21 claims
- Fluocinolone Acetonide20 claims
- Montelukast Sodium15 claims
- Erythromycin-Benzoyl Peroxide13 claims
- Humira(Cf) Pen13 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: $1,308.27
63 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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 one group practice
- Advanced Skin Clinic And Surgery PCUpland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tamuyen Nguyen among 2,083 dermatology physician records in California
Tamuyen Nguyen, M.D. 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 56% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1997 · median 2006 among the 1,450 with a school on file
- Record last updated2011 · 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 Upland → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Steven Chow, MDUpland, CA 917861720131741
- Jeffrey Rebish, MDUpland, CA 917861558452425
- Sandra Rebish, MDUpland, CA 917861235252289
- Arthur Zimmermann, M.D.Upland, CA 917861447273040
- Richard Chu, MDWest Covina, CA 917901952405102
- Sid Danesh, M.D.San Gabriel, CA 917761063447134
- Lawrence Schall, MDAlhambra, CA 918011376651125
- Christopher Harper, M.D.Pomona, CA 917671013150630
Common questions
What is Tamuyen Nguyen, M.D.'s NPI number?
Tamuyen Nguyen, M.D.'s National Provider Identifier (NPI) is 1710041686, issued on Dec 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tamuyen Nguyen, M.D. located?
The NPPES record lists a practice address at 1310 San Bernardino RD, Upland, CA, 91786. Phone: (909) 946-8600. Providers update this record themselves, so call before visiting.
How can I verify Tamuyen Nguyen, M.D.'s license?
NPPES lists California license number A80098, 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 Tamuyen Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Tamuyen Nguyen, M.D. had 283 Medicare Part D claims for 79 beneficiaries; the average among dermatology physician prescribers was 797. 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.