Grace Johnston, CCC-SLP
NPI 1427840982 · Speech-Language Pathologist · Santa Monica, CA
Grace Johnston, CCC-SLP is a Speech-Language Pathologist provider in Santa Monica, CA (NPI 1427840982).
Provider details
- NPI number
- 1427840982
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- CCC-SLP
- Sex
- Female
- Sole proprietor
- No
- License
- 28767 (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
1 yr 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
- 2025-05-20
- Last updated
- 2025-05-20
- Certified
- 2025-05-20
Frequently asked questions
- What is Grace Johnston's NPI number?
- Grace Johnston's National Provider Identifier (NPI) is 1427840982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Johnston's specialty?
- Grace Johnston is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Grace Johnston located?
- Grace Johnston's practice location on file with NPPES is 425 Washington Ave Apt 5, Santa Monica, CA 90403-3856.
- What is Grace Johnston's phone number?
- The practice phone number listed in the NPPES registry for Grace Johnston is (202) 412-7644.
- Is Grace Johnston's NPI active?
- Yes — Grace Johnston's NPI (1427840982) is active in the NPPES registry as of the last update on 2025-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.