John Farnen, MD
NPI 1467457432 · Hematology & Oncology Physician · La Crosse, WI
John Farnen, MD is a Hematology & Oncology Physician provider in La Crosse, WI (NPI 1467457432).
Provider details
- NPI number
- 1467457432
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 32099 (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
21 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
- 2005-06-16
- Last updated
- 2015-06-02
Frequently asked questions
- What is John Farnen's NPI number?
- John Farnen's National Provider Identifier (NPI) is 1467457432, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Farnen's specialty?
- John Farnen is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is John Farnen located?
- John Farnen's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.
- What is John Farnen's phone number?
- The practice phone number listed in the NPPES registry for John Farnen is (608) 782-7300.
- Is John Farnen's NPI active?
- Yes — John Farnen's NPI (1467457432) is active in the NPPES registry as of the last update on 2015-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.