Ellen Major, M.D.
NPI 1770577520 · Pediatrics Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Major, M.D. is a Pediatrics Physician provider in Chicago, IL (NPI 1770577520).
Provider details
- NPI number
- 1770577520
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- License
- 036-086252 (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
- 2005-09-08
- Last updated
- 2007-07-09
Frequently asked questions
- What is Ellen Major's NPI number?
- Ellen Major's National Provider Identifier (NPI) is 1770577520, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Major's specialty?
- Ellen Major is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Ellen Major located?
- Ellen Major's practice location on file with NPPES is 2300 N Childrens Plz, Chicago, IL 60614-3363.
- What is Ellen Major's phone number?
- The practice phone number listed in the NPPES registry for Ellen Major is (773) 880-6903.
- Does Ellen Major accept Medicare?
- Ellen Major is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Major's NPI active?
- Yes — Ellen Major's NPI (1770577520) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.