Leah Oonk, FNP-C
NPI 1871314492 · Family Nurse Practitioner · Marathon, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leah Oonk, FNP-C is a Family Nurse Practitioner provider in Marathon, WI (NPI 1871314492).
Provider details
- NPI number
- 1871314492
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 223206 (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
1 yr 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
- 2024-10-17
- Last updated
- 2024-10-17
- Certified
- 2024-10-02
Frequently asked questions
- What is Leah Oonk's NPI number?
- Leah Oonk's National Provider Identifier (NPI) is 1871314492, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leah Oonk's specialty?
- Leah Oonk is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Leah Oonk located?
- Leah Oonk's practice location on file with NPPES is 670 Community Cir, Marathon, WI 54448-9003.
- What is Leah Oonk's phone number?
- The practice phone number listed in the NPPES registry for Leah Oonk is (715) 443-6767.
- Does Leah Oonk accept Medicare?
- Leah Oonk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leah Oonk's NPI active?
- Yes — Leah Oonk's NPI (1871314492) is active in the NPPES registry as of the last update on 2024-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.