What is Mark Sauer's NPI number?

Mark Sauer's National Provider Identifier (NPI) is 1689518573, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mark Sauer's specialty?

Mark Sauer is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).

Where is Mark Sauer located?

Mark Sauer's practice location on file with NPPES is 2500 Overlook Ter, Madison, WI 53705-2254.

What is Mark Sauer's phone number?

The practice phone number listed in the NPPES registry for Mark Sauer is (608) 250-1901.

Is Mark Sauer's NPI active?

Yes — Mark Sauer's NPI (1689518573) is active in the NPPES registry as of the last update on 2026-04-20.

IndividualActive

Mark Sauer

NPI 1689518573 · Registered Nurse · Madison, WI

Mark Sauer is a Registered Nurse provider in Madison, WI (NPI 1689518573).

Provider details

NPI number: 1689518573
Entity type: Individual
Primary specialty: Registered NurseNursing Service Providers
Sex: Male
Sole proprietor: No
License: 177952-30 (WI)

Specialties & taxonomies

Registered NursePrimary163W00000XLicense 177952-30 (WI)
Nursing Service Providers

Profile Score

Established profile(53/100 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
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

2500 Overlook Ter

Madison, WI 53705-2254

Phone: (608) 250-1901

Street-level locationGet directions

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Mailing address