Claire Harrington
NPI 1770042806 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claire Harrington is a Internal Medicine Physician provider in Chicago, IL (NPI 1770042806).
Provider details
- NPI number
- 1770042806
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 125.073566 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
7 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)
- 251 E Huron StChicago, IL 60611-2908Phone: (312) 926-2000
Registry dates
- Enumerated
- 2019-03-18
- Last updated
- 2022-08-19
- Certified
- 2022-08-19
Frequently asked questions
- What is Claire Harrington's NPI number?
- Claire Harrington's National Provider Identifier (NPI) is 1770042806, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claire Harrington's specialty?
- Claire Harrington is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Claire Harrington located?
- Claire Harrington's practice location on file with NPPES is 675 N Saint Clair St Ste 18-200, Chicago, IL 60611-5929.
- What is Claire Harrington's phone number?
- The practice phone number listed in the NPPES registry for Claire Harrington is (312) 695-8630.
- Does Claire Harrington accept Medicare?
- Claire Harrington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claire Harrington's NPI active?
- Yes — Claire Harrington's NPI (1770042806) is active in the NPPES registry as of the last update on 2022-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.