Jill Day, M.S.
NPI 1508991837 · Speech-Language Pathologist · Saint Louis, MO
Jill Day, M.S. is a Speech-Language Pathologist provider in Saint Louis, MO (NPI 1508991837).
Provider details
- NPI number
- 1508991837
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- M.S.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 102373 (MO)
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
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
Registry dates
- Enumerated
- 2007-02-23
- Last updated
- 2007-07-09
Frequently asked questions
- What is Jill Day's NPI number?
- Jill Day's National Provider Identifier (NPI) is 1508991837, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jill Day's specialty?
- Jill Day is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Jill Day located?
- Jill Day's practice location on file with NPPES is 12430 Tesson Ferry Rd, Saint Louis, MO 63128-2702.
- What is Jill Day's phone number?
- The practice phone number listed in the NPPES registry for Jill Day is (314) 374-0184.
- Is Jill Day's NPI active?
- Yes — Jill Day's NPI (1508991837) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.