Sarah Seo, MS, CCC-SLP
NPI 1720599103 · Speech-Language Pathologist · Downey, CA
Enrolled with Medicare as Practitioner - Qualified Speech Language Pathologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Seo, MS, CCC-SLP is a Speech-Language Pathologist provider in Downey, CA (NPI 1720599103).
Provider details
- NPI number
- 1720599103
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- MS, CCC-SLP
- Sex
- Female
- Sole proprietor
- Yes
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
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2017-10-12
- Last updated
- 2021-12-29
- Certified
- 2021-12-29
Frequently asked questions
- What is Sarah Seo's NPI number?
- Sarah Seo's National Provider Identifier (NPI) is 1720599103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Seo's specialty?
- Sarah Seo is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Sarah Seo located?
- Sarah Seo's practice location on file with NPPES is 9353 Imperial Hwy, Downey, CA 90242-2812.
- What is Sarah Seo's phone number?
- The practice phone number listed in the NPPES registry for Sarah Seo is (800) 823-4040.
- Does Sarah Seo accept Medicare?
- Sarah Seo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Seo's NPI active?
- Yes — Sarah Seo's NPI (1720599103) is active in the NPPES registry as of the last update on 2021-12-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.