Samantha Michelle Chan Buffington, FNP
NPI 1629680087ActiveIndividual· Nurse Practitioner, Family· Yorba Linda, CA
Nurse Practitioner, Family (FNP) with Minuteclinic Diagnostic Medical Group of Orange County Inc, practicing in Yorba Linda, California. Mostly services rather than prescriptions: Medicare paid $6,161 for 43 patients in 2024, with only 14 Part D claims. Novo Nordisk Inc reported $121.81 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1629680087 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Aug 18, 2020 |
| Last updated in NPPES | Nov 24, 2025 |
| Certified by provider | Nov 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 95010633 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 43 |
|---|---|
| Services billed | 91 across 17 procedure codes |
| Paid by Medicare | $6,161 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14 · 14 30-day fills |
|---|---|
| Total drug cost | $1,639 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Minuteclinic Diagnostic Medical Group of Orange County IncIrvine, CA · 29 clinicians
Industry payments (Open Payments)
- 2025$121.81 · 1 payment from 1 company
- 2024$55.50 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $121.81 | 1 |
What the 2025 payments were for
- Food and Beverage$121.81 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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