Ronald Pajak, LSW
NPI 1871867044 · Social Worker · Chicago, IL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Pajak, LSW is a Social Worker provider in Chicago, IL (NPI 1871867044).
Provider details
- NPI number
- 1871867044
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LSW
- Sex
- Male
- Sole proprietor
- No
- License
- 150.013219 (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
14 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
- 2012-03-05
- Last updated
- 2012-03-05
Frequently asked questions
- What is Ronald Pajak's NPI number?
- Ronald Pajak's National Provider Identifier (NPI) is 1871867044, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Pajak's specialty?
- Ronald Pajak is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Ronald Pajak located?
- Ronald Pajak's practice location on file with NPPES is 180 N Michigan Ave, Chicago, IL 60601-7401.
- What is Ronald Pajak's phone number?
- The practice phone number listed in the NPPES registry for Ronald Pajak is (312) 925-7800.
- Does Ronald Pajak accept Medicare?
- Ronald Pajak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Pajak's NPI active?
- Yes — Ronald Pajak's NPI (1871867044) is active in the NPPES registry as of the last update on 2012-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.