Dr. Timothy James Koll, D.D.S.

Dr. Timothy James Koll is a Oral and Maxillofacial Pathology Dentistry provider (Dentist) practicing in Appleton, WI, registered in the NPPES registry with NPI 1154403194 since 2006. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum

NPI	1154403194
Entity type	Individual (Type 1)
Name	Dr. Timothy James Koll
Credential	D.D.S.
Sex	Male
Practice address	2410 E. EVERGREEN DR., Appleton, WI, 54913
Phone	9208329500
Fax	9208329490
Enumeration date	2006-10-19
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223P0106X	Oral and Maxillofacial Pathology Dentistry	Primary	4243	WI

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

Copy-ready billing details

Provider: Timothy Koll, D.D.S.
NPI: 1154403194
Taxonomy: 1223P0106X (Oral and Maxillofacial Pathology Dentistry)
Address: 2410 E. EVERGREEN DR., Appleton, WI, 54913

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1376637579	Henry Plautz	Individual	Oral and Maxillofacial Surgery (Dentist)	Appleton, WI
1932735214	Mark Norland	Individual	Oral and Maxillofacial Surgery (Dentist)	Appleton, WI

Verify this record

Cross-check NPI 1154403194 against the authoritative CMS record: view Dr. Timothy James Koll 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 Timothy Koll?

Timothy Koll is registered in NPPES with the primary taxonomy of Oral and Maxillofacial Pathology Dentistry. 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 2007-07-08.