Stefanie O'Sullivan, RN
NPI 1457812059 · Family Nurse Practitioner · Waupaca, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stefanie O'Sullivan, RN is a Family Nurse Practitioner provider in Waupaca, WI (NPI 1457812059).
Provider details
- NPI number
- 1457812059
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 242332 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
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
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
- 2019-03-27
- Last updated
- 2025-06-19
- Certified
- 2025-06-19
Frequently asked questions
- What is Stefanie O'Sullivan's NPI number?
- Stefanie O'Sullivan's National Provider Identifier (NPI) is 1457812059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stefanie O'Sullivan's specialty?
- Stefanie O'Sullivan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stefanie O'Sullivan located?
- Stefanie O'Sullivan's practice location on file with NPPES is 710 Riverside Dr, Waupaca, WI 54981-1941.
- What is Stefanie O'Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Stefanie O'Sullivan is (920) 850-1205.
- Does Stefanie O'Sullivan accept Medicare?
- Stefanie O'Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stefanie O'Sullivan's NPI active?
- Yes — Stefanie O'Sullivan's NPI (1457812059) is active in the NPPES registry as of the last update on 2025-06-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.