Karen Cosby, M.D.
NPI 1285718023 · Emergency Medicine Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Cosby, M.D. is a Emergency Medicine Physician provider in Chicago, IL (NPI 1285718023).
Provider details
- NPI number
- 1285718023
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 336072666 (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
19 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
- 2006-10-25
- Last updated
- 2021-04-22
- Certified
- 2021-04-22
Frequently asked questions
- What is Karen Cosby's NPI number?
- Karen Cosby's National Provider Identifier (NPI) is 1285718023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Cosby's specialty?
- Karen Cosby is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Cosby located?
- Karen Cosby's practice location on file with NPPES is 1900 W Polk St, Chicago, IL 60612-3723.
- What is Karen Cosby's phone number?
- The practice phone number listed in the NPPES registry for Karen Cosby is (312) 864-0060.
- Does Karen Cosby accept Medicare?
- Karen Cosby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Cosby's NPI active?
- Yes — Karen Cosby's NPI (1285718023) is active in the NPPES registry as of the last update on 2021-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.