Libby Wolf, ACNP-BC
NPI 1720467509ActiveIndividual· Nurse Practitioner, Acute Care· Palo Alto, CA
Nurse Practitioner, Acute Care (ACNP-BC) with UCSF Medical Group Business Services and 1 other group, practicing in Palo Alto, California. Their prescriptions cost Medicare Part D more than their services did: $7,384,635 for 2,876 claims, against $30,169 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $90.48 in all, mostly food and beverage. Lists Marinhealth Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1720467509 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ACNP-BC |
| Sole proprietor | No |
| NPI issued | May 26, 2015 |
| Last updated in NPPES | May 26, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Acute Care Primary | 363LA2100X | 95001351 | CA |
| Registered Nurse | 163W00000X | 95030449 | 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 | 145 |
|---|---|
| Services billed | 855 across 16 procedure codes |
| Paid by Medicare | $30,169 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,876 · 4,253 30-day fills |
|---|---|
| Patients | 905 |
| Total drug cost | $7,384,635 |
| Generic share | 69% of claims |
Education and affiliations
| Graduation year | 2014 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
- Regents of the University of CaliforniaSan Francisco, CA · 732 clinicians
Hospital affiliations
- Marinhealth Medical CenterGreenbrae, CA
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$90.48 · 4 payments from 2 companies
- 2024$149.63 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $52.50 | 2 |
| Janssen Biotech, Inc. | $37.98 | 2 |
What the 2025 payments were for
- Food and Beverage$90.48 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 19 acute care nurse practitioners in Palo Alto · All acute care nurse practitioners in California