Mariia Steffeny
NPI 1992319065 · Critical Care Neonatal Nurse Practitioner · Milwaukee, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariia Steffeny is a Critical Care Neonatal Nurse Practitioner provider in Milwaukee, WI (NPI 1992319065).
Provider details
- NPI number
- 1992319065
- Entity type
- Individual
- Primary specialty
- Critical Care Neonatal Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 237189-30 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 9200 W Wisconsin AveMilwaukee, WI 53226-3522Phone: (414) 805-5800Fax: (414) 805-8097
- 8915 W Connell AveMilwaukee, WI 53226-3067Phone: (414) 266-2000
Registry dates
- Enumerated
- 2020-09-04
- Last updated
- 2024-04-08
- Certified
- 2024-04-08
Frequently asked questions
- What is Mariia Steffeny's NPI number?
- Mariia Steffeny's National Provider Identifier (NPI) is 1992319065, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariia Steffeny's specialty?
- Mariia Steffeny is listed in the NPPES registry with a primary specialty of Critical Care Neonatal Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mariia Steffeny located?
- Mariia Steffeny's practice location on file with NPPES is 9000 W Wisconsin Ave, Milwaukee, WI 53226-4874.
- What is Mariia Steffeny's phone number?
- The practice phone number listed in the NPPES registry for Mariia Steffeny is (414) 266-6820.
- Does Mariia Steffeny accept Medicare?
- Mariia Steffeny is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariia Steffeny's NPI active?
- Yes — Mariia Steffeny's NPI (1992319065) is active in the NPPES registry as of the last update on 2024-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.