Kristen Marie Viera, PA-C
NPI 1225566227ActiveIndividual· Physician Assistant, Surgical· Atascadero, CA
Physician Assistant, Surgical (PA-C) with Adventist Health Physicians Network and 1 other group, practicing in Atascadero, California. Their prescriptions cost Medicare Part D more than their services did: $592,671 for 5,224 claims, against $53,115 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 10 companies reporting payments in 2025, $663.73 in all, mostly food and beverage. Lists Adventist Health Sierra Vista and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1225566227 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jun 2, 2017 |
| Last updated in NPPES | Feb 9, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| 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) | Enrolled Practitioner - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 265 |
|---|---|
| Services billed | 862 across 27 procedure codes |
| Paid by Medicare | $53,115 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,224 · 12,325 30-day fills |
|---|---|
| Patients | 465 |
| Total drug cost | $592,671 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical groups
- Adventist Health Physicians NetworkSaint Helena, CA · 628 clinicians
- David B. HammerTempleton, CA · 123 clinicians
Hospital affiliations
- Adventist Health Sierra VistaSan Luis Obispo, CA
- Adventist Health Twin CitiesTempleton, CA
- French Hospital Medical CenterSan Luis Obispo, CA
Industry payments (Open Payments)
- 2025$663.73 · 40 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $182.26 | 18 |
| Novo Nordisk Inc | $103.27 | 5 |
| Bayer Healthcare Pharmaceuticals Inc. | $95.76 | 4 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $66.09 | 3 |
| Lilly USA, LLC | $53.48 | 2 |
What the 2025 payments were for
- Food and Beverage$663.73 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records