Dr. Tamuyen G. Nguyen, MD
- Medicare services, 2024
- 562
- Medicare patients, 2024
- 174
- Part D claims, 2024
- 283
- Hospital affiliations
- 1
- Industry payments
- $11,704
- Practice address
- 1310 San Bernardino Rd Suite 207 Suite 207, Upland, CA 91786-4985
- Practice phone
- Call (909) 946-8600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Advanced Skin Clinic & Surgery
Multi-specialty group site · Upland, California
Find Dr. Nguyen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Tamuyen G. Nguyen is a dermatologist in Upland, California
Dr. Nguyen practices at Advanced Skin Clinic & Surgery in Upland, California.
Dr. Nguyen's NPI, 1710041686, was assigned on December 21, 2006. Dr. Nguyen graduated from UMKC School of Medicine in 1997. Dr. Nguyen holds California license A80098.
- NPI
- 1710041686NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214921311
- NPI enumeration date
- December 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 946-8600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Tamuyen G. Nguyen practices at Advanced Skin Clinic & Surgery in Upland, California
Dr. Nguyen's primary practice is Advanced Skin Clinic & Surgery, at 1310 San Bernardino Rd Suite 207 Suite 207, Upland, CA 91786-4985. The practice phone is (909) 946-8600.
- Advanced Skin Clinic & Surgery1310 San Bernardino Rd Suite 207 Suite 207, Upland, CA 91786-4985Phone(909) 946-8600
Source: Dmand AI Affiliation Data
Dr. Tamuyen G. Nguyen is affiliated with 2 sites of care and 1 medical group
Dr. Nguyen's primary practice is Advanced Skin Clinic & Surgery in Upland, California. Dr. Nguyen is also affiliated with San Antonio Regional Hospital. The medical group on file is Advanced Skin Clinic & Surgery.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Tamuyen G. Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Advanced Skin Clinic & Surgery | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Tamuyen G. Nguyen is one of 1,910 dermatologists in California
Dermatology is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dmand AI has Dr. Nguyen's licenses on file in 2 states: California and Florida.
Specialties and state licenses
- Dermatology, CaliforniaPrimary
- Florida license
Clinical focus
Dmand AI lists acne, acute skin infection, benign or precancerous skin growths, cancerous skin growth removal, contact dermatitis, hives, itchy rashes and scalp rash among the conditions Dr. Nguyen treats.
Dermatologists near Dr. Nguyen
Counts of dermatologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Tamuyen G. Nguyen billed Medicare for 562 services in 2024
CMS data shows 562 Medicare services from Dr. Nguyen across 6 procedure codes in 2024, for 174 Medicare patients. Medicare paid $37,565 for them. Every service was in an office.
Dr. Nguyen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3962024: 4268%
- Surgery
- 2023: 732024: 13686%
Dr. Nguyen compared with the California median for dermatologists, 2024
- Dr. Nguyen
- California median
- Medicare services
- 562vs 1,75068% below
- Medicare patients
- 174vs 37754% below
- Part D claims
- 188vs 36749% below
Medians across 1,831 dermatologists in California with Dmand AI profiles that report each measure.
Dr. Nguyen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Nguyen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nguyen and other dermatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tamuyen G. Nguyen treated 174 Medicare patients in 2024, average age 73
CMS counts 174 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 79 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.04, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 52, with 75% women.
Dr. Nguyen's Medicare patients by age, 2024
Dr. Nguyen's Medicare patients by sex, 2024
- Women13678%
- Men3822%
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes29%
- Osteoporosis26%
- Chronic kidney disease24%
- Ischemic heart disease23%
- Anxiety22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nguyen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women75%
- Men25%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tamuyen G. Nguyen wrote 283 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 283 Medicare Part D claims for 79 patients. 88% of them were for generic drugs. CMS names the drug for 188 of them, across 8 drugs with 11 or more claims each, at $130,469 in total drug cost. In 2023, CMS named 169 claims across 6 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic248 claims88%
- Brand-name35 claims12%
Dr. Nguyen's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1692024: 18811%
Drugs named by CMS: 8 in 2024, 6 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Tamuyen G. Nguyen ranks in the 76th percentile for removal of skin lesions in Medicare
Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 109 procedures of removal of skin lesions by Dr. Nguyen, more than 76% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Nguyen ranks in Medicare procedure volume
- Removal of skin lesions
- 76th percentile109 procedures
- Skin biopsy
- 70th percentile56 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Tamuyen G. Nguyen received $11,704 in industry payments from 2016 to 2025
CMS Open Payments shows 579 general payments to Dr. Nguyen from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. LEO Pharma Inc. paid the most, $2,399.
General payments to Dr. Nguyen by program year, 2016 to 2025
General payments to Dr. Nguyen by kind, 2016 to 2025
- Food and beverage$10,86793%
- Education$8377%
Companies that paid Dr. Nguyen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Tamuyen G. Nguyen graduated from UMKC School of Medicine
Dr. Nguyen graduated from UMKC School of Medicine in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. Tamuyen G. Nguyen accepts plans from 14 insurance carriers
Dr. Nguyen is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Humana
- Regence Health Plans
- +6 more carriersWith a free account
Plan types Dr. Nguyen accepts, by number of carriers
- PPO10
- Medicare9
- HMO6
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Tamuyen G. Nguyen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Tamuyen G. Nguyen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Tamuyen G. Nguyen's NPI number?
Dr. Tamuyen G. Nguyen's NPI number is 1710041686. It was assigned on December 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Tamuyen G. Nguyen?
Dr. Tamuyen G. Nguyen is a dermatologist in Upland, California. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Tamuyen G. Nguyen practice?
Dr. Nguyen practices at 1310 San Bernardino Rd Suite 207 Suite 207, Upland, CA 91786-4985. Dr. Nguyen's primary practice is Advanced Skin Clinic & Surgery in Upland, California.
What is Dr. Tamuyen G. Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (909) 946-8600.
What is Dr. Tamuyen G. Nguyen's medical license number?
Dr. Nguyen holds California license A80098, one of the licenses on file in 2 states.
Which states has Dr. Tamuyen G. Nguyen been licensed in?
Dmand AI has state licenses on file for Dr. Nguyen in California (2002 to 2026) and Florida (2003 to 2012).
Which hospitals is Dr. Tamuyen G. Nguyen affiliated with?
Dr. Nguyen is affiliated with San Antonio Regional Hospital.
What medical group is Dr. Tamuyen G. Nguyen part of?
Dr. Nguyen is linked to Advanced Skin Clinic & Surgery.
Does Dr. Tamuyen G. Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 562 services in 2024, and Dr. Nguyen accepts Medicare assignment.
How many Medicare patients does Dr. Tamuyen G. Nguyen see?
CMS counts 174 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 73.
Show 6 more questionsShow fewer questions
What services does Dr. Tamuyen G. Nguyen bill to Medicare?
In 2024, Dr. Nguyen's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and surgery: skin and soft tissue (11102).
Where did Dr. Tamuyen G. Nguyen go to medical school?
Dr. Nguyen graduated from UMKC School of Medicine in 1997.
What drugs does Dr. Tamuyen G. Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Ketoconazole, Triamcinolone Acetonide and Fluocinolone Acetonide.
Has Dr. Tamuyen G. Nguyen received payments from drug or device companies?
CMS Open Payments shows $11,704 in general payments to Dr. Nguyen from 28 companies from 2016 to 2025. The largest total came from LEO Pharma Inc.
How long has Dr. Tamuyen G. Nguyen been practicing?
Dr. Nguyen graduated from medical school in 1997, 29 years ago.
What insurance does Dr. Tamuyen G. Nguyen accept?
Dr. Nguyen is in network with 14 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
Selling to dermatology practices?
See dermatologists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card