Donald Nadar, MD
NPI 1427165851 · Family Medicine Physician · Waukesha, WI
Donald Nadar, MD is a Family Medicine Physician provider in Waukesha, WI (NPI 1427165851).
Provider details
- NPI number
- 1427165851
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 37151 (WI)
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
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
- 2006-08-23
- Last updated
- 2012-04-25
Frequently asked questions
- What is Donald Nadar's NPI number?
- Donald Nadar's National Provider Identifier (NPI) is 1427165851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donald Nadar's specialty?
- Donald Nadar is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Donald Nadar located?
- Donald Nadar's practice location on file with NPPES is 2130 Big Bend Rd, Waukesha, WI 53189-7624.
- What is Donald Nadar's phone number?
- The practice phone number listed in the NPPES registry for Donald Nadar is (262) 928-7555.
- Is Donald Nadar's NPI active?
- Yes — Donald Nadar's NPI (1427165851) is active in the NPPES registry as of the last update on 2012-04-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.