Stephanie O'Brien, CPNP
NPI 1801824487 · Pediatric Nurse Practitioner · Chicago, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie O'Brien, CPNP is a Pediatric Nurse Practitioner provider in Chicago, IL (NPI 1801824487).
Provider details
- NPI number
- 1801824487
- Entity type
- Individual
- Primary specialty
- Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CPNP
- Sex
- Female
- Sole proprietor
- No
- License
- 209004699 (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
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
- 2006-06-30
- Last updated
- 2023-09-07
- Certified
- 2021-07-26
Frequently asked questions
- What is Stephanie O'Brien's NPI number?
- Stephanie O'Brien's National Provider Identifier (NPI) is 1801824487, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie O'Brien's specialty?
- Stephanie O'Brien is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stephanie O'Brien located?
- Stephanie O'Brien's practice location on file with NPPES is 255 E. Chicago Avenue, Chicago, IL 60611.
- What is Stephanie O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Stephanie O'Brien is (312) 227-4795.
- Does Stephanie O'Brien accept Medicare?
- Stephanie O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie O'Brien's NPI active?
- Yes — Stephanie O'Brien's NPI (1801824487) is active in the NPPES registry as of the last update on 2023-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.