Libby Wolf, ACNP-BC
NPI 1720467509 · Acute Care Nurse Practitioner · Palo Alto, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Libby Wolf, ACNP-BC is a Acute Care Nurse Practitioner provider in Palo Alto, CA (NPI 1720467509).
Provider details
- NPI number
- 1720467509
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ACNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 95001351 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
217 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 126 | $136 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 76 | $93 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 15 | $63 |
Typical Medicare-allowed amounts for these services range $63–$136 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 45 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetron Hcl | 469 | 446 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 359 | 352 |
| Omeprazole | 190 | 74 |
| Ustekinumabbrand: Stelara | 154 | 20 |
| Famotidine | 146 | 43 |
| Pantoprazole Sodium | 126 | 42 |
| Linaclotidebrand: Linzess | 103 | 20 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$150 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-05-26
- Last updated
- 2015-05-26
Frequently asked questions
- What is Libby Wolf's NPI number?
- Libby Wolf's National Provider Identifier (NPI) is 1720467509, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Libby Wolf's specialty?
- Libby Wolf is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Libby Wolf located?
- Libby Wolf's practice location on file with NPPES is 900 Blake Wilbur Dr, Palo Alto, CA 94304-2201.
- What is Libby Wolf's phone number?
- The practice phone number listed in the NPPES registry for Libby Wolf is (650) 736-5555.
- Does Libby Wolf accept Medicare?
- Libby Wolf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Libby Wolf's NPI active?
- Yes — Libby Wolf's NPI (1720467509) is active in the NPPES registry as of the last update on 2015-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.