Sang Kyun Ahn, DMD
NPI 1780849018ActiveIndividual· Dentist· Santa Clara, CA
Dentist (DMD) in Santa Clara, California, licensed in CA, with an NPI issued in July 2008. Part D covered 324 prescriptions written in 2024, 100% of them generic. Straumann USA LLC was the largest of 2 companies reporting payments in 2025, $504.89 in all, mostly food and beverage. A record with the same name and state is on the OIG exclusion list; it carries no NPI, so check it before acting.
Overview
| NPI | 1780849018 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DMD |
| Sole proprietor | Yes |
| NPI issued | Jul 25, 2008 |
| Last updated in NPPES | Jul 25, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dentist Primary | 122300000X | 42795 | CA |
Exclusion screening
Possible match: verify before acting. The OIG list has a record with the same name in California, but that record carries no NPI, so it may be a different person or business.
| Matched by | Name on OIG list | Exclusion type | Excluded since | Location |
|---|---|---|---|---|
| Name + state | Sang Whan Ahn · Home Health Agency | 1128a1 | Dec 18, 2014 | Los Angeles, CA |
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | Possible (name) | See above |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 324 · 326 30-day fills |
|---|---|
| Patients | 158 |
| Total drug cost | $1,938 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$504.89 · 21 payments from 2 companies
- 2024$523.49 · 18 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Straumann USA LLC | $467.55 | 20 |
| Septodont Inc. | $37.34 | 1 |
What the 2025 payments were for
- Food and Beverage$467.55 · 20 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$37.34 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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