Fallon Madeline Theis, DDS

Fallon Madeline Theis is a Dentist provider (Dentist) practicing in Litchfield, MN, registered in the NPPES registry with NPI 1407340524 since 2018. The credential DDS stands for Doctor of Dental Surgery. Practices at Sibley Dental Suite, Pllc (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI	1407340524
Entity type	Individual (Type 1)
Name	Fallon Madeline Theis
Credential	DDS
Sex	Female
Practice address	623 S SIBLEY AVE, Litchfield, MN, 55355
Phone	3206938131
Enumeration date	2018-06-21
Last updated in NPPES	2018-06-21

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
122300000X	Dentist	Primary	D14054	MN

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Fallon Theis, DDS
NPI: 1407340524
Taxonomy: 122300000X (Dentist)
Address: 623 S SIBLEY AVE, Litchfield, MN, 55355

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1275697559	Michael Cziok	Individual	Dentist	Litchfield, MN
1881741643	Amber Cziok	Individual	General Practice Dentistry	Litchfield, MN
1780738179	Sibley Dental Suite, Pllc	Organization	General Practice Dentistry	Litchfield, MN

Verify this record

Cross-check NPI 1407340524 against the authoritative CMS record: view Fallon Madeline Theis on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Fallon Theis?

Fallon Theis 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2018-06-21.