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William Clanfield, MD
NPI 1326085648 · Hospitalist Physician · Janesville, WI
William Clanfield, MD is a Hospitalist Physician provider in Janesville, WI (NPI 1326085648).
Provider details
- NPI number
- 1326085648
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 31105-20 (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
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
3400 E Racine St
Janesville, WI 53546-2344
Phone: (608) 373-8000
Street-level locationGet directions
Mailing address
3400 E Racine St
Janesville, WI 53546-2344
Registry dates
- Enumerated
- 2006-06-02
- Last updated
- 2020-11-05
- Certified
- 2020-11-05
Frequently asked questions
- What is William Clanfield's NPI number?
- William Clanfield's National Provider Identifier (NPI) is 1326085648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Clanfield's specialty?
- William Clanfield is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is William Clanfield located?
- William Clanfield's practice location on file with NPPES is 3400 E Racine St, Janesville, WI 53546-2344.
- What is William Clanfield's phone number?
- The practice phone number listed in the NPPES registry for William Clanfield is (608) 373-8000.
- Is William Clanfield's NPI active?
- Yes — William Clanfield's NPI (1326085648) is active in the NPPES registry as of the last update on 2020-11-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.