Catherine Liu
NPI 1396533311 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Liu is a Internal Medicine Physician provider in Chicago, IL (NPI 1396533311).
Provider details
- NPI number
- 1396533311
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
83% 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
- 2025-04-29
- Last updated
- 2025-07-22
- Certified
- 2025-07-22
Frequently asked questions
- What is Catherine Liu's NPI number?
- Catherine Liu's National Provider Identifier (NPI) is 1396533311, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Liu's specialty?
- Catherine Liu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Liu located?
- Catherine Liu's practice location on file with NPPES is 1620 W Harrison St, Chicago, IL 60612-3801.
- What is Catherine Liu's phone number?
- The practice phone number listed in the NPPES registry for Catherine Liu is (312) 942-5000.
- Does Catherine Liu accept Medicare?
- Catherine Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Liu's NPI active?
- Yes — Catherine Liu's NPI (1396533311) is active in the NPPES registry as of the last update on 2025-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.