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Lois Grootwassink, MD
NPI 1629073283 · Anesthesiology Physician · La Crosse, WI
Lois Grootwassink, MD is a Anesthesiology Physician provider in La Crosse, WI (NPI 1629073283).
Provider details
- NPI number
- 1629073283
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 22691 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
1836 South Ave
La Crosse, WI 54601-5429
Phone: (608) 782-7300
Street-level locationGet directions
Mailing address
1836 South Ave
La Crosse, WI 54601-5429
Registry dates
- Enumerated
- 2005-06-20
- Last updated
- 2016-02-10
Frequently asked questions
- What is Lois Grootwassink's NPI number?
- Lois Grootwassink's National Provider Identifier (NPI) is 1629073283, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lois Grootwassink's specialty?
- Lois Grootwassink is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Lois Grootwassink located?
- Lois Grootwassink's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.
- What is Lois Grootwassink's phone number?
- The practice phone number listed in the NPPES registry for Lois Grootwassink is (608) 782-7300.
- Is Lois Grootwassink's NPI active?
- Yes — Lois Grootwassink's NPI (1629073283) is active in the NPPES registry as of the last update on 2016-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.