Katherine Siembab
NPI 1598485377 · Clinical Social Worker · Peru, IL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Siembab is a Clinical Social Worker provider in Peru, IL (NPI 1598485377).
Provider details
- NPI number
- 1598485377
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 149024180 (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
3 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
- 2022-08-31
- Last updated
- 2022-08-31
- Certified
- 2022-08-31
Frequently asked questions
- What is Katherine Siembab's NPI number?
- Katherine Siembab's National Provider Identifier (NPI) is 1598485377, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Siembab's specialty?
- Katherine Siembab is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Katherine Siembab located?
- Katherine Siembab's practice location on file with NPPES is 926 Grant St, Peru, IL 61354-2656.
- What is Katherine Siembab's phone number?
- The practice phone number listed in the NPPES registry for Katherine Siembab is (815) 883-1383.
- Does Katherine Siembab accept Medicare?
- Katherine Siembab is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Siembab's NPI active?
- Yes — Katherine Siembab's NPI (1598485377) is active in the NPPES registry as of the last update on 2022-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.