Catherine Mahaffie, AU.D.
NPI 1245428911 · Audiologist-Hearing Aid Fitter · Santa Clara, CA
Enrolled with Medicare as Practitioner - Qualified Audiologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Mahaffie, AU.D. is a Audiologist-Hearing Aid Fitter provider in Santa Clara, CA (NPI 1245428911).
Provider details
- NPI number
- 1245428911
- Entity type
- Individual
- Primary specialty
- Audiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
- Credential
- AU.D.
- Sex
- Female
- Sole proprietor
- No
- License
- AU960 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-10-09
- Last updated
- 2021-12-30
Frequently asked questions
- What is Catherine Mahaffie's NPI number?
- Catherine Mahaffie's National Provider Identifier (NPI) is 1245428911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Mahaffie's specialty?
- Catherine Mahaffie is listed in the NPPES registry with a primary specialty of Audiologist-Hearing Aid Fitter (Speech, Language and Hearing Service Providers).
- Where is Catherine Mahaffie located?
- Catherine Mahaffie's practice location on file with NPPES is 710 Lawrence Expy Ste 296, Santa Clara, CA 95051-5173.
- What is Catherine Mahaffie's phone number?
- The practice phone number listed in the NPPES registry for Catherine Mahaffie is (408) 851-1000.
- Does Catherine Mahaffie accept Medicare?
- Catherine Mahaffie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Mahaffie's NPI active?
- Yes — Catherine Mahaffie's NPI (1245428911) is active in the NPPES registry as of the last update on 2021-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.