Ethel Antonio, NP
NPI 1386778967 · Family Nurse Practitioner · Westlake Village, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ethel Antonio, NP is a Family Nurse Practitioner provider in Westlake Village, CA (NPI 1386778967).
Provider details
- NPI number
- 1386778967
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95007507 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
19 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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Quetiapine Fumarate | 58 |
| Risperidone | 42 |
| Divalproex Sodium | 31 |
| Olanzapine | 29 |
| Buspirone Hcl | 23 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 20 |
| Escitalopram Oxalate | 15 |
| Risperidonebrand: Risperidone Odt | 15 |
| Aripiprazolebrand: Aripiprazole Odt | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$234 across 2 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
- 2007-03-15
- Last updated
- 2024-12-31
- Certified
- 2024-12-31
Frequently asked questions
- What is Ethel Antonio's NPI number?
- Ethel Antonio's National Provider Identifier (NPI) is 1386778967, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ethel Antonio's specialty?
- Ethel Antonio is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ethel Antonio located?
- Ethel Antonio's practice location on file with NPPES is 31194 La Baya Dr, Westlake Village, CA 91362-4022.
- What is Ethel Antonio's phone number?
- The practice phone number listed in the NPPES registry for Ethel Antonio is (805) 341-3416.
- Does Ethel Antonio accept Medicare?
- Ethel Antonio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ethel Antonio's NPI active?
- Yes — Ethel Antonio's NPI (1386778967) is active in the NPPES registry as of the last update on 2024-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.