Mark Bartosz, D.D.S.
Mark Bartosz is a General Practice Dentistry provider (Dentist) practicing in Eau Claire, WI, registered in the NPPES registry with NPI 1669926929 since 2016. The credential DDS stands for Doctor of Dental Surgery.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1669926929 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark Bartosz |
| Credential | D.D.S. |
| Sex | Male |
| Practice address | 615 W CLAIREMONT AVE, Eau Claire, WI, 54701 |
| Phone | 7158336271 |
| Enumeration date | 2016-08-04 |
| Last updated in NPPES | 2016-08-04 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Primary | 1001383-15 | 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: Mark Bartosz, D.D.S. NPI: 1669926929 Taxonomy: 1223G0001X (General Practice Dentistry) Address: 615 W CLAIREMONT AVE, Eau Claire, WI, 54701
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1770750739 | David Hoban | Individual | Addiction (Substance Use Disorder) Counselor | Eau Claire, WI |
| 1629231956 | Terrence Miskulin | Individual | Dentist | Eau Claire, WI |
| 1255786547 | Daniel Gerdes | Individual | General Practice Dentistry | Eau Claire, WI |
| 1487328902 | Samuel Miller | Individual | General Practice Dentistry | Eau Claire, WI |
| 1992471460 | Shannon Burns | Individual | General Practice Dentistry | Eau Claire, WI |
| 1023893567 | Zachary Quam | Individual | Dentist | Eau Claire, WI |
| 1558103382 | Benjamin Gutschow | Individual | Dentist | Eau Claire, WI |
| 1518761584 | Autumn Habas | Individual | General Practice Dentistry | Eau Claire, WI |
Verify this record
Cross-check NPI 1669926929 against the authoritative CMS record: view Mark Bartosz 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
Is this the official NPI registry?
What specialty is Mark Bartosz?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2016-08-04.