Olivia Walter, FNP-BC
NPI 1538911243 · Family Nurse Practitioner · Phoenix, AZ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Olivia Walter, FNP-BC is a Family Nurse Practitioner provider in Phoenix, AZ (NPI 1538911243).
Provider details
- NPI number
- 1538911243
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 245847 (AZ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
2 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 32 | 17 |
| Amlodipine Besylate | 23 | 13 |
| Bumetanide | 21 | 15 |
| Furosemide | 17 | 12 |
| Nifedipinebrand: Nifedipine Er | 17 | — |
| Carvedilol | 15 | — |
| Atorvastatin Calcium | 13 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,147 across 37 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
- 2024-04-04
- Last updated
- 2026-04-03
- Certified
- 2026-04-03
Frequently asked questions
- What is Olivia Walter's NPI number?
- Olivia Walter's National Provider Identifier (NPI) is 1538911243, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Olivia Walter's specialty?
- Olivia Walter is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Olivia Walter located?
- Olivia Walter's practice location on file with NPPES is 9515 W Camelback Rd Ste 118, Phoenix, AZ 85037-1365.
- What is Olivia Walter's phone number?
- The practice phone number listed in the NPPES registry for Olivia Walter is (623) 322-7856.
- Does Olivia Walter accept Medicare?
- Olivia Walter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Olivia Walter's NPI active?
- Yes — Olivia Walter's NPI (1538911243) is active in the NPPES registry as of the last update on 2026-04-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.