Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. April Lee Farrell, M.D.

Dermatology Physician in Onalaska, WI · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1144386335

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. April Lee Farrell

Credential M.D.

Sex Female

Practice address 3111 Gundersen Dr, Onalaska, WI, 54650

Phone (608) 775-8100

Enumeration date Dec 29, 2006

Last updated in NPPES May 18, 2016

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 47198 (MN) Secondary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 65411 (WI) Primary

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License C56046 (CA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is April Farrell?

April Farrell is registered in NPPES with the primary taxonomy of Dermatology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

James Munn Internal Medicine Physician · Onalaska, WI NPI 1417959735 Karl Noll Dermatology Physician · Onalaska, WI NPI 1972505261 Mark Patterson Internal Medicine Physician · Onalaska, WI NPI 1134121478 Kellie Backman Family Nurse Practitioner · Onalaska, WI NPI 1639171895 James Baumgaertner Dermatology Physician · Onalaska, WI NPI 1942204839 Aleksandra Stuparic-Stancic Family Medicine Physician · Onalaska, WI NPI 1861496655 Stephen Webster Dermatology Physician · Onalaska, WI NPI 1750385498 David Carney Physical Therapist · Onalaska, WI NPI 1174528582

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-05-18.