Denis Tonsfeldt, M.D.
NPI 1588644603 · Emergency Medicine Physician · Waterford, WI
Denis Tonsfeldt, M.D. is a Emergency Medicine Physician provider in Waterford, WI (NPI 1588644603).
Provider details
- NPI number
- 1588644603
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25041-020 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-01-17
- Last updated
- 2012-11-21
Frequently asked questions
- What is Denis Tonsfeldt's NPI number?
- Denis Tonsfeldt's National Provider Identifier (NPI) is 1588644603, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Denis Tonsfeldt's specialty?
- Denis Tonsfeldt is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Denis Tonsfeldt located?
- Denis Tonsfeldt's practice location on file with NPPES is 818 Forest Ln, Waterford, WI 53185-4585.
- What is Denis Tonsfeldt's phone number?
- The practice phone number listed in the NPPES registry for Denis Tonsfeldt is (262) 514-8199.
- Is Denis Tonsfeldt's NPI active?
- Yes — Denis Tonsfeldt's NPI (1588644603) is active in the NPPES registry as of the last update on 2012-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.