Quick answers
- Does Ruth H. Kaspar accept Medicare assignment?
- Yes. Medicare's clinician data says Ruth H. Kaspar 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 Ruth H. Kaspar see?
- In 2024, CMS data shows 343 Original Medicare patients and 960 services for Ruth H. Kaspar. This counts Original Medicare only and measures volume, not quality.
- What is Ruth H. Kaspar's NPI number?
- 1871631853. 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 Ruth H. Kaspar, 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 | 343 |
|---|---|
| Services billed to Medicare | 960 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Test to assess middle ear function (92567)345 services
- Comprehensive hearing and speech recognition test (92557)207 services
- Test for hearing various pitches using earphone (92552)141 services
- Test for ability to detect and repeat spoken words with speech recognition (92556)137 services
- Placement of ear probe for computerized measurement of repeated sounds with interpretation and report (92588)108 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 pressure65%
- Arthritis41%
- Diabetes24%
- Osteoporosis20%
- Anxiety19%
Practice locations
Addresses where Ruth H. Kaspar is enrolled with Medicare (CMS data updated October 2, 2026).
- 243 Green Valley Rd, Suite BFreedom, CA 95019 (831) 724‑9449
- 550 Water St, Suite ASanta Cruz, CA 95060 (831) 476‑4414
Group practices
Medicare enrollment lists Ruth H. Kaspar as a member of this group (CMS data updated October 2, 2026).
- Bass Medical Group291 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 Bass Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | AU |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871631853 |
| 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