Marcia Ellen Tyler Evans, MSN PHD RN FNP-BC
NPI 1427117845ActiveIndividual· Nurse Practitioner, Family· Paso Robles, CA
Nurse Practitioner, Family (MSN PHD RN FNP-BC) with David B. Hammer, practicing in Paso Robles, California. Their prescriptions cost Medicare Part D more than their services did: $376,498 for 4,263 claims, against $43,924 paid for services in 2024. Astellas Pharma US Inc was the largest of 6 companies reporting payments in 2025, $417.88 in all, mostly food and beverage. Lists French Hospital Medical Center as a hospital affiliation.
Overview
| NPI | 1427117845 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MSN PHD RN FNP-BC |
| Sole proprietor | No |
| NPI issued | Dec 8, 2006 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 16600 | CA |
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 - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 229 |
|---|---|
| Services billed | 823 across 39 procedure codes |
| Paid by Medicare | $43,924 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,263 · 10,500 30-day fills |
|---|---|
| Patients | 335 |
| Total drug cost | $376,498 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- David B. HammerTempleton, CA · 123 clinicians
Hospital affiliation
- French Hospital Medical CenterSan Luis Obispo, CA
Other facilities
- Central Coast Home Health IncHome health agency · San Luis Obispo, CA
Industry payments (Open Payments)
- 2025$417.88 · 16 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $128.17 | 2 |
| Glaxosmithkline, LLC. | $114.72 | 5 |
| Abbvie Inc. | $63.02 | 3 |
| Novo Nordisk Inc | $45.31 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $43.94 | 3 |
What the 2025 payments were for
- Food and Beverage$318.88 · 15 payments
- Education$99.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 18 family nurse practitioners in Paso Robles · All family nurse practitioners in California