Ellie Trefz, M.S. CCC-SLP
NPI 1568691012 · Speech-Language Pathologist · Chicago, IL
Ellie Trefz, M.S. CCC-SLP is a Speech-Language Pathologist provider in Chicago, IL (NPI 1568691012).
Provider details
- NPI number
- 1568691012
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- M.S. CCC-SLP
- Sex
- Female
- Sole proprietor
- No
- License
- 242001217 (IL)
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
2 documented practice locations
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
Additional practice locations (1)
- 10039 La Crosse AveSkokie, IL 60077-1009Phone: (312) 607-4585
Registry dates
- Enumerated
- 2009-07-06
- Last updated
- 2019-01-16
Frequently asked questions
- What is Ellie Trefz's NPI number?
- Ellie Trefz's National Provider Identifier (NPI) is 1568691012, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellie Trefz's specialty?
- Ellie Trefz is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Ellie Trefz located?
- Ellie Trefz's practice location on file with NPPES is 225 E Chicago Ave, Chicago, IL 60611.
- What is Ellie Trefz's phone number?
- The practice phone number listed in the NPPES registry for Ellie Trefz is (800) 543-7362.
- Is Ellie Trefz's NPI active?
- Yes — Ellie Trefz's NPI (1568691012) is active in the NPPES registry as of the last update on 2019-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.