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Edit this profileWhere to find Julia A. Ondarza, PA-C
- Walnut Creek location main office
2637 Shadelands Dr, Walnut Creek, CA 94598 - Henderson location
10120 S Eastern Ave Ste 120, Henderson, NV 89052 - Stanford location
300 Pasteur Dr, Stanford, CA 94305
About Julia Ondarza
Julia A. Ondarza, PA-C is a physician assistant practicing in Walnut Creek, CA. Julia is also listed as specializing in physician assistant — medical. According to Medicare claims data, the services billed most often include critical care, first 30-74 minutes. This provider record is associated with NPI 1013537794.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (925) 430-5335
- Email not available
Practice Locations
2637 SHADELANDS DR
Walnut Creek, CA 94598
10120 S Eastern Ave Ste 120
Henderson, NV 89052
300 Pasteur Dr
Stanford, CA 94305
Procedures Most Often Billed to Medicare
13 services · 13 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Critical care, first 30-74 minutes | Office visit | 99291 |
13 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 7
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other physician assistants in Walnut Creek 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2019 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Julia A. Ondarza specialize in?
Julia A. Ondarza is a physician assistant in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Julia A. Ondarza located?
Julia A. Ondarza is listed at 2637 Shadelands Dr, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Julia A. Ondarza's phone number?
The number on file is (925) 430-5335. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Julia A. Ondarza's NPI number?
Julia A. Ondarza's National Provider Identifier is 1013537794. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Julia A. Ondarza train?
Julia A. Ondarza attended Other, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How long has Julia A. Ondarza been practicing?
Julia A. Ondarza has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What does Julia A. Ondarza do most often?
According to Medicare billing data, Julia A. Ondarza the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Julia A. Ondarza confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Julia A. Ondarza. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.