Dr. Michael B Karczewski, DDSMS
Dr. Michael B Karczewski is a Prosthodontics provider (Dentist) practicing in Brookfield, WI, registered in the NPPES registry with NPI 1043357775 since 2007. Practices at Greenbrook Dentistry S C (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1043357775 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Michael B Karczewski |
| Credential | DDSMS |
| Sex | Male |
| Practice address | 13780 W GREENFIELD AVE, SUITE 780, Brookfield, WI, 53005 |
| Phone | 2627824860 |
| Fax | 2627827720 |
| Enumeration date | 2007-01-31 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223P0700X | Prosthodontics | Primary | 3691 | WI |
Copy-ready billing details
Provider: Michael Karczewski, DDSMS NPI: 1043357775 Taxonomy: 1223P0700X (Prosthodontics) Address: 13780 W GREENFIELD AVE, SUITE 780, Brookfield, WI, 53005
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1063565273 | Greenbrook Dentistry S C | Organization | General Practice Dentistry | Brookfield, WI |
| 1285771840 | Carter Benson | Individual | General Practice Dentistry | Brookfield, WI |
| 1306983028 | James Hove | Individual | General Practice Dentistry | Brookfield, WI |
| 1871813923 | Steven Koutnik | Individual | General Practice Dentistry | Brookfield, WI |
Verify this record
Cross-check NPI 1043357775 against the authoritative CMS record: view Dr. Michael B Karczewski 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 NPI 1043357775 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.