Matthew Karnak, LISW
NPI 1255648184 · Clinical Social Worker · Pepper Pike, OH
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Karnak, LISW is a Clinical Social Worker provider in Pepper Pike, OH (NPI 1255648184).
Provider details
- NPI number
- 1255648184
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LISW
- Sex
- Male
- Sole proprietor
- No
- License
- S.0900857 (OH)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2010-09-14
- Last updated
- 2012-06-28
Frequently asked questions
- What is Matthew Karnak's NPI number?
- Matthew Karnak's National Provider Identifier (NPI) is 1255648184, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Karnak's specialty?
- Matthew Karnak is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Matthew Karnak located?
- Matthew Karnak's practice location on file with NPPES is 3737 Lander Rd, Pepper Pike, OH 44124-5712.
- What is Matthew Karnak's phone number?
- The practice phone number listed in the NPPES registry for Matthew Karnak is (216) 831-2255.
- Does Matthew Karnak accept Medicare?
- Matthew Karnak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Karnak's NPI active?
- Yes — Matthew Karnak's NPI (1255648184) is active in the NPPES registry as of the last update on 2012-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.