Kathleen Siess
NPI 1831444660 · Speech-Language Pathologist · Gardena, CA
Kathleen Siess is a Speech-Language Pathologist provider in Gardena, CA (NPI 1831444660).
Provider details
- NPI number
- 1831444660
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 17954 (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
13 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
- 2012-07-18
- Last updated
- 2012-07-18
Frequently asked questions
- What is Kathleen Siess's NPI number?
- Kathleen Siess's National Provider Identifier (NPI) is 1831444660, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen Siess's specialty?
- Kathleen Siess is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Kathleen Siess located?
- Kathleen Siess's practice location on file with NPPES is 18726 S Western Ave, Gardena, CA 90248-3813.
- What is Kathleen Siess's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Siess is (310) 352-6405.
- Is Kathleen Siess's NPI active?
- Yes — Kathleen Siess's NPI (1831444660) is active in the NPPES registry as of the last update on 2012-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.