Quick answers
- Does Brittany N. Willis accept Medicare assignment?
- Yes. Medicare's clinician data says Brittany N. Willis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Brittany N. Willis see?
- In 2024, CMS data shows 288 Original Medicare patients and 613 services for Brittany N. Willis. This counts Original Medicare only and measures volume, not quality.
- What is Brittany N. Willis's NPI number?
- 1457992513. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Brittany N. Willis, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 288 |
|---|---|
| Services billed to Medicare | 613 |
| Different services or procedures | 3 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Comprehensive hearing and speech recognition test (92557)307 services
- Test to assess middle ear function (92567)189 services
- Test for eardrum and muscle function (92550)117 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes35%
- Ischemic heart disease33%
- Anxiety21%
Practice locations
Addresses where Brittany N. Willis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1700 W Walnut Ave, Suite AVisalia, CA 93277 (559) 409‑4720
Group practices
Medicare enrollment lists Brittany N. Willis as a member of this group (CMS data updated October 2, 2026).
- Jason Roos DO a Professional Medical Corporation10 clinicians in the group
Specialties
- Qualified Audiologistprimary
Other audiologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Jason Roos DO a Professional Medical Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | AU |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457992513 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians