Erin O'Brien, APN
NPI 1780988782 · Critical Care Neonatal Nurse Practitioner · Chicago, IL
Erin O'Brien, APN is a Critical Care Neonatal Nurse Practitioner provider in Chicago, IL (NPI 1780988782).
Provider details
- NPI number
- 1780988782
- Entity type
- Individual
- Primary specialty
- Critical Care Neonatal Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- No
- License
- 209008574 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2011-01-05
- Last updated
- 2011-01-05
Frequently asked questions
- What is Erin O'Brien's NPI number?
- Erin O'Brien's National Provider Identifier (NPI) is 1780988782, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin O'Brien's specialty?
- Erin O'Brien is listed in the NPPES registry with a primary specialty of Critical Care Neonatal Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Erin O'Brien located?
- Erin O'Brien's practice location on file with NPPES is 250 E Superior St, Chicago, IL 60611-2914.
- What is Erin O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Erin O'Brien is (312) 472-1000.
- Is Erin O'Brien's NPI active?
- Yes — Erin O'Brien's NPI (1780988782) is active in the NPPES registry as of the last update on 2011-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.