Marissa Tenneson
NPI 1285252981 · Physician Assistant · Milwaukee, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Tenneson is a Physician Assistant provider in Milwaukee, WI (NPI 1285252981).
Provider details
- NPI number
- 1285252981
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 7100 (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
5 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
- 2020-07-09
- Last updated
- 2023-01-24
- Certified
- 2023-01-24
Frequently asked questions
- What is Marissa Tenneson's NPI number?
- Marissa Tenneson's National Provider Identifier (NPI) is 1285252981, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Tenneson's specialty?
- Marissa Tenneson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Tenneson located?
- Marissa Tenneson's practice location on file with NPPES is 9000 W Wisconsin Ave, Milwaukee, WI 53226-4874.
- What is Marissa Tenneson's phone number?
- The practice phone number listed in the NPPES registry for Marissa Tenneson is (414) 266-2625.
- Does Marissa Tenneson accept Medicare?
- Marissa Tenneson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Tenneson's NPI active?
- Yes — Marissa Tenneson's NPI (1285252981) is active in the NPPES registry as of the last update on 2023-01-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.