Lillian Toshner, FNP-C
NPI 1821935545 · Family Nurse Practitioner · Sussex, WI
Lillian Toshner, FNP-C is a Family Nurse Practitioner provider in Sussex, WI (NPI 1821935545).
Provider details
- NPI number
- 1821935545
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 1834333 (WI)
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
Under 1 yr in 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
- 2026-04-30
- Last updated
- 2026-04-30
- Certified
- 2026-04-17
Frequently asked questions
- What is Lillian Toshner's NPI number?
- Lillian Toshner's National Provider Identifier (NPI) is 1821935545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lillian Toshner's specialty?
- Lillian Toshner is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lillian Toshner located?
- Lillian Toshner's practice location on file with NPPES is N57w24950 N Corporate Cir, Sussex, WI 53089-4383.
- What is Lillian Toshner's phone number?
- The practice phone number listed in the NPPES registry for Lillian Toshner is (262) 820-3093.
- Is Lillian Toshner's NPI active?
- Yes — Lillian Toshner's NPI (1821935545) is active in the NPPES registry as of the last update on 2026-04-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.