Mark Pelech, LSW CADC
NPI 1427601871 · Addiction (Substance Use Disorder) Counselor · Oak Lawn, IL
Mark Pelech, LSW CADC is a Addiction (Substance Use Disorder) Counselor provider in Oak Lawn, IL (NPI 1427601871).
Provider details
- NPI number
- 1427601871
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LSW CADC
- Sex
- Male
- Sole proprietor
- Yes
- License
- 29984 (IL)
Specialties & taxonomies
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
7 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
- 2019-07-24
- Last updated
- 2019-07-24
Frequently asked questions
- What is Mark Pelech's NPI number?
- Mark Pelech's National Provider Identifier (NPI) is 1427601871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Pelech's specialty?
- Mark Pelech is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mark Pelech located?
- Mark Pelech's practice location on file with NPPES is 10402 S Cicero Ave, Oak Lawn, IL 60453-4704.
- What is Mark Pelech's phone number?
- The practice phone number listed in the NPPES registry for Mark Pelech is (708) 422-2898.
- Is Mark Pelech's NPI active?
- Yes — Mark Pelech's NPI (1427601871) is active in the NPPES registry as of the last update on 2019-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.