Dr. Eric P. Xanthopoulos, MD
Dr. Eric P. Xanthopoulos is a Radiation Oncology Physician provider (Radiology) practicing in Beloit, WI, registered in the NPPES registry with NPI 1457693079 since 2013. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1457693079 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Eric P. Xanthopoulos |
| Credential | MD |
| Sex | Male |
| Practice address | BELOIT HEALTH SYSTEM UW CANCER CENTER, 1670 LEE LANE, Beloit, WI, 53511 |
| Phone | 6083645253 |
| Fax | 6083645252 |
| Enumeration date | 2013-03-21 |
| Last updated in NPPES | 2021-03-31 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2085R0001X | Radiation Oncology Physician | Secondary | 036-146949 | IL |
| 390200000X | Student in an Organized Health Care Education/Training Program | Secondary | — | — |
| 2085R0001X | Radiation Oncology Physician | Primary | 68909-20 | WI |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100075966 | Medicaid | WI | — |
Copy-ready billing details
Provider: Eric Xanthopoulos, MD NPI: 1457693079 Taxonomy: 2085R0001X (Radiation Oncology Physician) Address: BELOIT HEALTH SYSTEM UW CANCER CENTER, 1670 LEE LANE, Beloit, WI, 53511
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1508016817 | Angela Besaw | Individual | Nurse Practitioner | Beloit, WI |
Verify this record
Cross-check NPI 1457693079 against the authoritative CMS record: view Dr. Eric P. Xanthopoulos 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 2021-03-31.