What is Marissa Willix's NPI number?

Marissa Willix's National Provider Identifier (NPI) is 1053244632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Marissa Willix's specialty?

Marissa Willix is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).

Where is Marissa Willix located?

Marissa Willix's practice location on file with NPPES is 601 Elmwood Ave, Rochester, NY 14642-0002.

What is Marissa Willix's phone number?

The practice phone number listed in the NPPES registry for Marissa Willix is (585) 275-2100.

Is Marissa Willix's NPI active?

Yes — Marissa Willix's NPI (1053244632) is active in the NPPES registry as of the last update on 2026-06-04.

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Marissa Willix

NPI 1053244632 · Physician Assistant · Rochester, NY

Marissa Willix is a Physician Assistant provider in Rochester, NY (NPI 1053244632).

Provider details

NPI number: 1053244632
Entity type: Individual
Primary specialty: Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Physician AssistantPrimary363A00000X
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Basic profile(46/100 index)

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
83% 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

601 Elmwood Ave

Rochester, NY 14642-0002

Phone: (585) 275-2100

Street-level locationGet directions

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Mailing address