Lisa Sandrik, NP
NPI 1255981668ActiveIndividual· Nurse Practitioner, Acute Care· Walnut Creek, CA
Nurse Practitioner, Acute Care (NP) with John Muir Physician Network, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $2,532,124 for 11,149 claims, against $95,916 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 11 companies reporting payments in 2025, $406.51 in all, mostly food and beverage. Lists John Muir Medical Center - Walnut Creek Campus as a hospital affiliation.
Overview
| NPI | 1255981668 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Sep 17, 2019 |
| Last updated in NPPES | Jan 10, 2023 |
| Certified by provider | Jan 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Acute Care Primary | 363LA2100X | 95012601 | 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 | 500 |
|---|---|
| Services billed | 1,283 across 16 procedure codes |
| Paid by Medicare | $95,916 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,149 · 29,891 30-day fills |
|---|---|
| Patients | 3,862 |
| Total drug cost | $2,532,124 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Hospital affiliation
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$406.51 · 21 payments from 11 companies
- 2024$751.16 · 31 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $65.96 | 4 |
| Esperion Therapeutics, Inc. | $57.94 | 3 |
| Amgen Inc. | $56.00 | 3 |
| Astrazeneca Pharmaceuticals LP | $51.53 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $38.54 | 2 |
What the 2025 payments were for
- Food and Beverage$406.51 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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