Quick answers
- Does Ashley M. Chwastyk accept Medicare assignment?
- Medicare's clinician data says Ashley M. Chwastyk may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Ashley M. Chwastyk see?
- In 2024, CMS data shows 55 Original Medicare patients and 147 services for Ashley M. Chwastyk. This counts Original Medicare only and measures volume, not quality.
- What is Ashley M. Chwastyk's NPI number?
- 1013441583. 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 Ashley M. Chwastyk, 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 | 55 |
|---|---|
| Services billed to Medicare | 147 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Comprehensive hearing and speech recognition test (92557)53 services
- Placement of ear probe for computerized measurement of repeated sounds with interpretation and report (92588)37 services
- Test for eardrum and muscle function (92550)27 services
- Test to assess middle ear function (92567)27 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 cholesterol67%
- High blood pressure55%
- Arthritis36%
- Osteoporosis33%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)24%
Practice locations
Addresses where Ashley M. Chwastyk is enrolled with Medicare (CMS data updated October 2, 2026).
- 3555 Alameda De Las Pulgas, Suite 100Menlo Park, CA 94025 (650) 854‑0413
- 496 1st St, Suite 120Los Altos, CA 94022 (650) 941‑0664
Group practices
Medicare enrollment lists Ashley M. Chwastyk as a member of this group (CMS data updated October 2, 2026).
- Pacific Hearing Clinic Inc8 clinicians in the group
Specialties
- Qualified Audiologistprimary
Other audiologists in Menlo Park
Clinicians with the same Medicare primary specialty in Menlo Park, CA — not a recommendation.
Other clinicians in Pacific Hearing Clinic Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | AU |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1013441583 |
| 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