Julia Alexa Ondarza, PA-C
NPI 1013537794ActiveIndividual· Physician Assistant· Walnut Creek, CA
Physician Assistant (PA-C) with Stanford Health Care and 2 other groups, practicing in Walnut Creek, California. Medicare paid $6,507 for services to 35 patients in 2024. Lists John Muir Medical Center - Walnut Creek Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1013537794 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 22, 2020 |
| Last updated in NPPES | Oct 29, 2025 |
| Certified by provider | Oct 29, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 60191 | CA |
| Physician Assistant, Medical | 363AM0700X | 60191 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 35 |
|---|---|
| Services billed | 67 across 22 procedure codes |
| Paid by Medicare | $6,507 |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical groups
- Stanford Health CareStanford, CA · 3,122 clinicians
- Nextgen Rpm LLCSouth Bend, IN · 5 clinicians
- Brandon McCutcheon MD PCWalnut Creek, CA · 5 clinicians
Hospital affiliations
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 95 physician assistants in Walnut Creek · All physician assistants in California