James Wishau, M.D.
NPI 1962414938 · Internal Medicine Physician · Lake Mills, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Wishau, M.D. is a Internal Medicine Physician provider in Lake Mills, WI (NPI 1962414938).
Provider details
- NPI number
- 1962414938
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 24282 (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
19 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
- 2006-08-11
- Last updated
- 2023-03-07
Frequently asked questions
- What is James Wishau's NPI number?
- James Wishau's National Provider Identifier (NPI) is 1962414938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Wishau's specialty?
- James Wishau is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Wishau located?
- James Wishau's practice location on file with NPPES is 200 E Tyranena Park Rd, Lake Mills, WI 53551-9678.
- What is James Wishau's phone number?
- The practice phone number listed in the NPPES registry for James Wishau is (920) 648-8393.
- Does James Wishau accept Medicare?
- James Wishau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Wishau's NPI active?
- Yes — James Wishau's NPI (1962414938) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.