William Lewis, M.S., CCC-SLP
NPI 1457684391 · Speech-Language Pathologist · Washington, DC
William Lewis, M.S., CCC-SLP is a Speech-Language Pathologist provider in Washington, DC (NPI 1457684391).
Provider details
- NPI number
- 1457684391
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- M.S., CCC-SLP
- Sex
- Male
- Sole proprietor
- No
- License
- 2202005857 (VA)
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
16 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
- 2009-09-10
- Last updated
- 2009-11-20
Frequently asked questions
- What is William Lewis's NPI number?
- William Lewis's National Provider Identifier (NPI) is 1457684391, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Lewis's specialty?
- William Lewis is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is William Lewis located?
- William Lewis's practice location on file with NPPES is 6900 Georgia Ave Nw, Washington, DC 20307-0003.
- What is William Lewis's phone number?
- The practice phone number listed in the NPPES registry for William Lewis is (843) 509-3443.
- Is William Lewis's NPI active?
- Yes — William Lewis's NPI (1457684391) is active in the NPPES registry as of the last update on 2009-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.