Karen Schaller, N.P.
NPI 1740559129 · Pediatric Nurse Practitioner · Oak Lawn, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Schaller, N.P. is a Pediatric Nurse Practitioner provider in Oak Lawn, IL (NPI 1740559129).
Provider details
- NPI number
- 1740559129
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 209.009288 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing 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
2 documented practice locations
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
Additional practice locations (1)
- 5841 S Maryland AveChicago, IL 60637-1443Phone: (773) 702-1000
Registry dates
- Enumerated
- 2011-12-14
- Last updated
- 2024-07-10
- Certified
- 2024-07-10
Frequently asked questions
- What is Karen Schaller's NPI number?
- Karen Schaller's National Provider Identifier (NPI) is 1740559129, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Schaller's specialty?
- Karen Schaller is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Schaller located?
- Karen Schaller's practice location on file with NPPES is 4440 W 95th St, Oak Lawn, IL 60453-2600.
- What is Karen Schaller's phone number?
- The practice phone number listed in the NPPES registry for Karen Schaller is (708) 684-5437.
- Does Karen Schaller accept Medicare?
- Karen Schaller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Schaller's NPI active?
- Yes — Karen Schaller's NPI (1740559129) is active in the NPPES registry as of the last update on 2024-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.