Karen Louie, MD
NPI 1831170356 · Hematology & Oncology Physician · Oak Brook, IL
Enrolled with Medicare as Order and Referring Only - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Louie, MD is a Hematology & Oncology Physician provider in Oak Brook, IL (NPI 1831170356).
Provider details
- NPI number
- 1831170356
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036061154 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-11-10
- Last updated
- 2019-10-16
Frequently asked questions
- What is Karen Louie's NPI number?
- Karen Louie's National Provider Identifier (NPI) is 1831170356, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Louie's specialty?
- Karen Louie is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Louie located?
- Karen Louie's practice location on file with NPPES is 107 Midwest Club Pkwy, Oak Brook, IL 60523-2507.
- What is Karen Louie's phone number?
- The practice phone number listed in the NPPES registry for Karen Louie is (630) 212-1554.
- Does Karen Louie accept Medicare?
- Karen Louie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Louie's NPI active?
- Yes — Karen Louie's NPI (1831170356) is active in the NPPES registry as of the last update on 2019-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.