Konstantinos Siontis, MD
NPI 1457615999ActiveIndividual· Internal Medicine, Cardiovascular Disease· Rochester, MN
Internal Medicine, Cardiovascular Disease (MD) with Mayo Clinic and 8 other groups, practicing in Rochester, Minnesota. In 2024 Medicare paid $100,332 for 1,374 patients, and Part D covered 225 of their prescriptions, 59% of them generic. Novartis Pharmaceuticals Corporation was the largest of 7 companies reporting payments in 2025, $18,148 in all, mostly consulting fees. Lists Mayo Clinic Health System - Albert Lea and Austin and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1457615999 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 29, 2012 |
| Last updated in NPPES | Oct 3, 2025 |
| Certified by provider | Oct 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 58218 | MN |
| Internal Medicine, Clinical Cardiac Electrophysiology | 207RC0001X | 58218 | MN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (IA); Practitioner - Cardiovascular Disease (Cardiology) (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,374 |
|---|---|
| Services billed | 2,394 across 54 procedure codes |
| Paid by Medicare | $100,332 |
Part D prescriptions in 2024
| Prescriptions (claims) | 225 · 448 30-day fills |
|---|---|
| Patients | 50 |
| Total drug cost | $76,035 |
| Generic share | 59% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Cardiac Electrophysiology |
| Telehealth | Offers telehealth |
Medical groups
- Mayo ClinicRochester, MN · 4,956 clinicians
- Mayo Clinic Health System-Northwest Wisconsin Region IncEau Claire, WI · 802 clinicians
- Mayo Clinic Health System-Southwest Minnesota RegionMankato, MN · 661 clinicians
- Mayo Clinic Health System-Southeast Minnesota RegionAustin, MN · 551 clinicians
- Mayo Clinic Health System-Southwest Wisconsin Region IncLa Crosse, WI · 534 clinicians
- Mayo Clinic Health System-FairmontFairmont, MN · 155 clinicians
- Winneshiek Medical CenterDecorah, IA · 101 clinicians
- Mayo Clinic Health System-St JamesSaint James, MN · 76 clinicians
- Mayo Clinic Health System-Lake CityLake City, MN · 69 clinicians
Hospital affiliations
- Mayo Clinic Health System - Albert Lea and AustinAlbert Lea, MN
- Mayo Clinic Health System - FairmontFairmont, MN
- Mayo Clinic Health System - MankatoMankato, MN
- Mayo Clinic Health System in Red WingRed Wing, MN
- Mayo Clinic Hospital RochesterRochester, MN
Industry payments (Open Payments)
- 2025$18,148 · 15 payments from 7 companies
- 2024$754.54 · 12 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $11,787 | 7 |
| Biosense Webster, Inc. | $4,340 | 3 |
| Siemens Medical Solutions USA, Inc. | $1,125 | 1 |
| E.R. Squibb & Sons, L.L.C. | $577.50 | 1 |
| Abbott Laboratories | $131.02 | 1 |
What the 2025 payments were for
- Consulting Fee$14,590 · 4 payments
- Travel and Lodging$2,805 · 4 payments
- Food and Beverage$752.54 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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