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Gemmalyn Mashak
NPI 1962343798 · Registered Nurse · Tomah, WI
Gemmalyn Mashak is a Registered Nurse provider in Tomah, WI (NPI 1962343798).
Provider details
- NPI number
- 1962343798
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1104765-30 (WI)
Specialties & taxonomies
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
500 E Veterans St
Tomah, WI 54660-3105
Phone: (608) 372-3971
Street-level locationGet directions
Mailing address
11923 State Highway 27
Sparta, WI 54656-4759
Registry dates
- Enumerated
- 2026-04-04
- Last updated
- 2026-04-04
- Certified
- 2026-04-03
Frequently asked questions
- What is Gemmalyn Mashak's NPI number?
- Gemmalyn Mashak's National Provider Identifier (NPI) is 1962343798, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gemmalyn Mashak's specialty?
- Gemmalyn Mashak is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Gemmalyn Mashak located?
- Gemmalyn Mashak's practice location on file with NPPES is 500 E Veterans St, Tomah, WI 54660-3105.
- What is Gemmalyn Mashak's phone number?
- The practice phone number listed in the NPPES registry for Gemmalyn Mashak is (608) 372-3971.
- Is Gemmalyn Mashak's NPI active?
- Yes — Gemmalyn Mashak's NPI (1962343798) is active in the NPPES registry as of the last update on 2026-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.