Nelson T. Yen, DDS, MS
- Part D claims, 2024
- 586
- Industry payments
- $4,260
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 220 Laguna Rd, Fullerton, CA 92835-2523
- Practice phone
- Call (714) 441-0436
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Nelson T. Yen Dds, Ms
Dental practice · Fullerton, California
Find Nelson Yen'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.
Nelson T. Yen is a periodontist in Fullerton, California
Nelson Yen practices at Nelson T. Yen Dds, Ms in Fullerton, California.
Nelson Yen's NPI, 1245330091, was assigned on September 22, 2006. Nelson Yen holds California license 46231.
- NPI
- 1245330091NPI Registry (opens in a new tab)
- NPI enumeration date
- September 22, 2006
- NPI status
- Active
- Practice phone
- (714) 441-0436
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Nelson T. Yen practices at 2 locations in Fullerton, California
Nelson Yen's primary practice is Nelson T. Yen Dds, Ms, at 220 Laguna Rd, Fullerton, CA 92835-2523. The practice phone is (714) 441-0436. The NPI Registry lists Nelson Yen's practice address as 130 Laguna Rd Ste B, Fullerton, CA 92835.
- Nelson T. Yen Dds, MsPrimary220 Laguna Rd, Fullerton, CA 92835-2523Phone(714) 441-0436
- NPI Registry address130 Laguna Rd Ste B, Fullerton, CA 92835Phone(714) 441-0436
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Nelson T. Yen is affiliated with 1 site of care and 1 medical group
Nelson Yen's primary practice is Nelson T. Yen Dds, Ms in Fullerton, California. Dmand AI also links Nelson Yen to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Nelson T. Yen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Nelson Yen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nelson T. Yen Dds, Ms | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Nelson T. Yen is one of 371 periodontists in California
Periodontics is Nelson Yen's primary specialty in the NPI Registry, under taxonomy code 1223P0300X. Nelson Yen is licensed in California.
Specialties and state licenses
- Periodontist, CaliforniaPrimary
Periodontists near Nelson Yen
Counts of periodontists 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
Nelson T. Yen wrote 586 Medicare Part D claims in 2024
In 2024, Nelson Yen wrote 586 Medicare Part D claims for 263 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Nelson Yen's Part D claims, 2024
- Opioids3%20 of 586 claims
- Antibiotics55%322 of 586 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Nelson T. Yen received $4,260 in industry payments in 2025
CMS Open Payments shows 6 general payments to Nelson Yen from 3 drug and device companies in 2025. Speaker and faculty fees make up the largest share, 94% of the total. Henry Schein, Inc. paid the most, $4,000.
General payments to Nelson Yen by kind, 2025 to 2025
- Speaker and faculty fees$4,00094%
- Food and beverage$2606%
Companies that paid Nelson Yen the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Nelson T. Yen'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Nelson T. Yen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Nelson T. Yen's NPI number?
Nelson T. Yen's NPI number is 1245330091. It was assigned on September 22, 2006, and it is active in the NPI Registry.
What does Nelson T. Yen specialize in?
Nelson T. Yen is a periodontist in Fullerton, California. The primary specialty in the NPI Registry is Periodontist (taxonomy code 1223P0300X).
Where does Nelson T. Yen practice?
Nelson Yen practices at 220 Laguna Rd, Fullerton, CA 92835-2523. Nelson Yen also practices at 130 Laguna Rd Ste B, Fullerton, CA 92835. Nelson Yen's primary practice is Nelson T. Yen Dds, Ms in Fullerton, California. Dmand AI also links Nelson Yen to 1 medical group.
What is Nelson T. Yen's office phone number?
The practice phone on file for Nelson Yen is (714) 441-0436.
What is Nelson T. Yen's medical license number?
Nelson Yen holds California license 46231.
Has Nelson T. Yen received payments from drug or device companies?
CMS Open Payments shows $4,260 in general payments to Nelson Yen from 3 companies from 2025 to 2025. The largest total came from Henry Schein, Inc.
How long has Nelson T. Yen been practicing?
Nelson Yen's NPI was assigned in 2006.
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