Steven Thellmann, M.S., CCC-SLP
NPI 1639956311 · Speech-Language Pathologist · Westlake, OH
Steven Thellmann, M.S., CCC-SLP is a Speech-Language Pathologist provider in Westlake, OH (NPI 1639956311).
Provider details
- NPI number
- 1639956311
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- M.S., CCC-SLP
- Sex
- Male
- Sole proprietor
- No
- License
- SP.15425 (OH)
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
2 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
- 2023-09-14
- Last updated
- 2023-09-14
- Certified
- 2023-09-14
Frequently asked questions
- What is Steven Thellmann's NPI number?
- Steven Thellmann's National Provider Identifier (NPI) is 1639956311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Thellmann's specialty?
- Steven Thellmann is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Steven Thellmann located?
- Steven Thellmann's practice location on file with NPPES is 23550 Center Ridge Rd Ste 105, Westlake, OH 44145-3655.
- What is Steven Thellmann's phone number?
- The practice phone number listed in the NPPES registry for Steven Thellmann is (440) 895-9970.
- Is Steven Thellmann's NPI active?
- Yes — Steven Thellmann's NPI (1639956311) is active in the NPPES registry as of the last update on 2023-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.