Landmark Hearing Services Inc
NPI 1780808477 · Audiologist-Hearing Aid Fitter · Sunnyvale, CA
Landmark Hearing Services Inc is a Audiologist-Hearing Aid Fitter organization in Sunnyvale, CA (NPI 1780808477).
Provider details
- NPI number
- 1780808477
- Entity type
- Organization
- Primary specialty
- Audiologist-Hearing Aid FitterSpeech, Language and Hearing Service Providers
- Organization subpart
- No
- Authorized official
- Sandra Wendschlag, President(408) 773-9933
- License
- AU1103 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
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
19 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
Other names (DBA / former)
- Doing business as
- Landmark Hearing Services
Registry dates
- Enumerated
- 2007-04-12
- Last updated
- 2021-03-03
- Certified
- 2021-03-03
Frequently asked questions
- What is Landmark Hearing Services Inc's NPI number?
- Landmark Hearing Services Inc's National Provider Identifier (NPI) is 1780808477, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Landmark Hearing Services Inc?
- Landmark Hearing Services Inc is classified in the NPPES registry as Audiologist-Hearing Aid Fitter (Speech, Language and Hearing Service Providers).
- Where is Landmark Hearing Services Inc located?
- Landmark Hearing Services Inc's practice location on file with NPPES is 877 W Fremont Ave, Sunnyvale, CA 94087-2315.
- What is Landmark Hearing Services Inc's phone number?
- The practice phone number listed in the NPPES registry for Landmark Hearing Services Inc is (408) 773-9933.
- Who is the authorized official for Landmark Hearing Services Inc?
- The authorized official listed on Landmark Hearing Services Inc's NPPES record is Sandra Wendschlag, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Landmark Hearing Services Inc's NPI active?
- Yes — Landmark Hearing Services Inc's NPI (1780808477) is active in the NPPES registry as of the last update on 2021-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.