IndividualActive
Mark Thayer, RN
NPI 1861368490 · Registered Nurse · Verona, WI
Mark Thayer, RN is a Registered Nurse provider in Verona, WI (NPI 1861368490).
Provider details
- NPI number
- 1861368490
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- No
- License
- 238504 (WI)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Established profile(54/100 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
1979 Milky Way
Verona, WI 53593-9179
Phone: (608) 271-9000
Street-level locationGet directions
Mailing address
605 Hilltop Dr
Madison, WI 53711-1358
Registry dates
- Enumerated
- 2025-10-13
- Last updated
- 2025-10-13
- Certified
- 2025-10-12
Frequently asked questions
- What is Mark Thayer's NPI number?
- Mark Thayer's National Provider Identifier (NPI) is 1861368490, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Thayer's specialty?
- Mark Thayer is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Mark Thayer located?
- Mark Thayer's practice location on file with NPPES is 1979 Milky Way, Verona, WI 53593-9179.
- What is Mark Thayer's phone number?
- The practice phone number listed in the NPPES registry for Mark Thayer is (608) 271-9000.
- Is Mark Thayer's NPI active?
- Yes — Mark Thayer's NPI (1861368490) is active in the NPPES registry as of the last update on 2025-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.