Dr. Brett Michael Dempsey, MD
Dr. Brett Michael Dempsey is a Surgery Physician provider (Surgery) practicing in Herrin, IL, registered in the NPPES registry with NPI 1659599538 since 2007. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1659599538 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Brett Michael Dempsey |
| Credential | MD |
| Sex | Male |
| Practice address | 220 S PARK AVE FL 3, Herrin, IL, 62948 |
| Phone | 6189422002 |
| Fax | 6183516497 |
| Enumeration date | 2007-04-23 |
| Last updated in NPPES | 2021-01-29 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Secondary | 50805 | MN |
| 208600000X | Surgery Physician | Primary | 036130706 | IL |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Brett Dempsey, MD NPI: 1659599538 Taxonomy: 208600000X (Surgery Physician) Address: 220 S PARK AVE FL 3, Herrin, IL, 62948
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1134393267 | Kristina Potanos | Individual | Surgery Physician | Herrin, IL |
| 1093157315 | Ellie Bentley | Individual | Surgery Physician | Herrin, IL |
Verify this record
Cross-check NPI 1659599538 against the authoritative CMS record: view Dr. Brett Michael Dempsey 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-01-29.