Karen Nelson, M.D.
NPI 1225097405 · Family Medicine Physician · Waukesha, WI
Karen Nelson, M.D. is a Family Medicine Physician provider in Waukesha, WI (NPI 1225097405).
Provider details
- NPI number
- 1225097405
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 015291 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-03-17
- Last updated
- 2014-03-31
Frequently asked questions
- What is Karen Nelson's NPI number?
- Karen Nelson's National Provider Identifier (NPI) is 1225097405, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Nelson's specialty?
- Karen Nelson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Nelson located?
- Karen Nelson's practice location on file with NPPES is 210 Nw Barstow St, Waukesha, WI 53188-3771.
- What is Karen Nelson's phone number?
- The practice phone number listed in the NPPES registry for Karen Nelson is (262) 548-6903.
- Is Karen Nelson's NPI active?
- Yes — Karen Nelson's NPI (1225097405) is active in the NPPES registry as of the last update on 2014-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.