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Thomas Grau, MD
NPI 1255321758 · Family Medicine Physician · La Crosse, WI
Thomas Grau, MD is a Family Medicine Physician provider in La Crosse, WI (NPI 1255321758).
Provider details
- NPI number
- 1255321758
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 29358 (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
815 10th St S
La Crosse, WI 54601-4764
Phone: (608) 791-6648
Street-level locationGet directions
Mailing address
Po Box 1510
Eau Claire, WI 54702-1510
Registry dates
- Enumerated
- 2005-10-26
- Last updated
- 2018-09-28
Frequently asked questions
- What is Thomas Grau's NPI number?
- Thomas Grau's National Provider Identifier (NPI) is 1255321758, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Grau's specialty?
- Thomas Grau is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Grau located?
- Thomas Grau's practice location on file with NPPES is 815 10th St S, La Crosse, WI 54601-4764.
- What is Thomas Grau's phone number?
- The practice phone number listed in the NPPES registry for Thomas Grau is (608) 791-6648.
- Is Thomas Grau's NPI active?
- Yes — Thomas Grau's NPI (1255321758) is active in the NPPES registry as of the last update on 2018-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.