ETHEL ANTONIO NP
NPI 1386778967
Nurse Practitioner - Family in Westlake Village, CA
About Ethel Antonio Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ETHEL ANTONIO NP (NPI 1386778967) is an individual family provider in Westlake Village, California, licensed in California (95007507) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ethel Antonio Np is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
11Medicare enrollment records show Ethel Antonio reassigns Medicare billing to 11 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Westlake Village, CA 91362
- Reassigned Medicare billing, California enrollment
- 10 clinicians in this Medicare group
West Hills, CA 91304
- Reassigned Medicare billing, California enrollment
- 205 clinicians in this Medicare group
Woodland Hills, CA 91367
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1396287082 (California)
- 13,921 clinicians in this Medicare group
Northridge, CA 91325
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
Encino, CA 91436
- Reassigned Medicare billing, California enrollment
- 16 clinicians in this Medicare group
North Hills, CA 91343
- Reassigned Medicare billing, California enrollment
- 146 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 clinicians in this Medicare group
Pasadena, CA 91103
- Reassigned Medicare billing, California enrollment
- 3 clinicians in this Medicare group
West Covina, CA 91790
- Reassigned Medicare billing, California enrollment
- 18 clinicians in this Medicare group
Upland, CA 91786
- Reassigned Medicare billing, California enrollment
- 76 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 91362 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WESTLAKE VILLAGE, CA 91362
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ethel Antonio's NPI number?
The NPI number for Ethel Antonio is 1386778967. It was assigned to this individual provider in the NPPES registry on March 15, 2007.
Where is Ethel Antonio located?
Ethel Antonio practices at 31194 La Baya Dr, Westlake Village, CA 91362. The listed phone number is (805) 341-3416.
What is Ethel Antonio's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Ethel Antonio enrolled in Medicare?
Yes. Ethel Antonio is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ethel Antonio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ethel Antonio reassigns Medicare benefits to 11 organizations: Sabira Saifuddin MD A Medical Corp (Westlake Village, CA), Lakeside Medical Organization, A Medical Group Inc. (West Hills, CA), Southern California Permanente Medical Group (Woodland Hills, CA), Psychiatry And Mental Health, A Physician Assistant Corporation (Northridge, CA), Find Your Balance Therapy Center & Family Services A Professional Cor (Encino, CA) and 6 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ethel Antonio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Ethel Antonio was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ethel Antonio, NP · NPI 1386778967
Family physician in Westlake Village, California. Individual provider, active in the CMS NPPES registry since March 15, 2007.
## Identity
- **NPI:** 1386778967 (Entity type: Individual)
- **Enumerated:** March 15, 2007
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95007507 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 31194 LA BAYA DR, Westlake Village, CA 91362-4022
- **Phone:** (805) 341-3416 · **Fax:** (818) 369-0197
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 11 organizations under Medicare reassignment (form CMS-855R): Sabira Saifuddin MD A Medical Corp (NPI 1033683875, Westlake Village, CA); Lakeside Medical Organization, A Medical Group Inc. (NPI 1831426642, West Hills, CA); Southern California Permanente Medical Group (NPI 1952333478, Woodland Hills, CA); Psychiatry And Mental Health, A Physician Assistant Corporation (NPI 1538044565, Northridge, CA); Find Your Balance Therapy Center & Family Services A Professional Cor (NPI 1801405014, Encino, CA); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** August 5, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1386778967) · Data from the CMS NPPES public registry.