Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Dennis Carl Loeffler, D.D.S.
Dentist in La Crosse, WI · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811986938
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Registry record
Entity type Individual (Type 1)
Name Dr. Dennis Carl Loeffler
Credential D.D.S.
Sex Male
Practice address 1300 Badger St, La Crosse, WI, 54601
Phone (608) 782-2840
Enumeration date Oct 20, 2005
Last updated in NPPES Mar 20, 2013
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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.
Frequently asked questions
What specialty is Dennis Loeffler?
Dennis Loeffler is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all → Brian Allen Pediatrics Physician · La Crosse, WI NPI 1780684118 Gundersen Clinic, Ltd. Clinical Medical Laboratory · La Crosse, WI NPI 1619183993 Kristin Swanson Family Medicine Physician · La Crosse, WI NPI 1730382094 Sylvia Vanatta Family Medicine Physician · La Crosse, WI NPI 1700080199 University of Wisconsin System Non Payroll Clinic/Center · La Crosse, WI NPI 1063682938 Western Wisconsin Oral Health Initiative Dental Clinic/Center · La Crosse, WI NPI 1265605265 La Crosse Community Dental Dental Clinic/Center · La Crosse, WI NPI 1306098397
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-20.