IndividualActive
William Nicholson, MD
NPI 1003830142 · Family Medicine Physician · West Allis, WI
William Nicholson, MD is a Family Medicine Physician provider in West Allis, WI (NPI 1003830142).
Provider details
- NPI number
- 1003830142
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 37383 (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
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
2514 S 102nd St Ste 160
West Allis, WI 53227-2142
Phone: (414) 255-0300
Fax: (414) 543-9601
Street-level locationGet directions
Mailing address
3807 Spring St
Racine, WI 53405-1667
Registry dates
- Enumerated
- 2006-07-26
- Last updated
- 2022-07-21
Frequently asked questions
- What is William Nicholson's NPI number?
- William Nicholson's National Provider Identifier (NPI) is 1003830142, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Nicholson's specialty?
- William Nicholson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Nicholson located?
- William Nicholson's practice location on file with NPPES is 2514 S 102nd St Ste 160, West Allis, WI 53227-2142.
- What is William Nicholson's phone number?
- The practice phone number listed in the NPPES registry for William Nicholson is (414) 255-0300.
- Is William Nicholson's NPI active?
- Yes — William Nicholson's NPI (1003830142) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.