Marissa Jefferson, APNP
NPI 1548941537 · Acute Care Nurse Practitioner · Milwaukee, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Jefferson, APNP is a Acute Care Nurse Practitioner provider in Milwaukee, WI (NPI 1548941537).
Provider details
- NPI number
- 1548941537
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Female
- Sole proprietor
- No
- License
- 14298 (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
2 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
- 2023-07-31
- Last updated
- 2023-07-31
- Certified
- 2023-07-31
Frequently asked questions
- What is Marissa Jefferson's NPI number?
- Marissa Jefferson's National Provider Identifier (NPI) is 1548941537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Jefferson's specialty?
- Marissa Jefferson is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Jefferson located?
- Marissa Jefferson's practice location on file with NPPES is 2301 N Lake Dr, Milwaukee, WI 53211-4508.
- What is Marissa Jefferson's phone number?
- The practice phone number listed in the NPPES registry for Marissa Jefferson is (414) 585-1000.
- Does Marissa Jefferson accept Medicare?
- Marissa Jefferson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Jefferson's NPI active?
- Yes — Marissa Jefferson's NPI (1548941537) is active in the NPPES registry as of the last update on 2023-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.