Mark Dixon, D.O.
NPI 1912980236ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Valparaiso, IN
Internal Medicine, Clinical Cardiac Electrophysiology (D.O.) in Valparaiso, Indiana, trained at At Still University of Health Sciences, College of Osteo Med, Kirksville (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $388,094 for 1,853 claims, against $223,743 paid for services in 2024. Biosense Webster, Inc. was the largest of 4 companies reporting payments in 2025, $141.69 in all, mostly food and beverage.
Overview
| NPI | 1912980236 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Nov 21, 2005 |
| Last updated in NPPES | Sep 10, 2020 |
| Certified by provider | Sep 10, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | 02001376 | IN |
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 - Cardiac Electrophysiology (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 788 |
|---|---|
| Services billed | 2,838 across 65 procedure codes |
| Paid by Medicare | $223,743 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,853 · 4,345 30-day fills |
|---|---|
| Patients | 454 |
| Total drug cost | $388,094 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | At Still University of Health Sciences, College of Osteo Med, Kirksville |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Cardiac Electrophysiology |
Medical groups
- Porter Physician Services LLCValparaiso, IN · 99 clinicians
- La Porte Clinic Company LLCKnox, IN · 69 clinicians
Hospital affiliations
- Northwest Health - PorterValparaiso, IN
- Northwest Health - StarkeKnox, IN
- Northwest Health-La PorteLa Porte, IN
- St Mary Medical Center IncHobart, IN
Industry payments (Open Payments)
- 2025$141.69 · 4 payments from 4 companies
- 2024$45.50 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biosense Webster, Inc. | $76.63 | 1 |
| Philips North America LLC | $25.82 | 1 |
| Boston Scientific Corporation | $23.00 | 1 |
| Abbott Laboratories | $16.24 | 1 |
What the 2025 payments were for
- Food and Beverage$141.69 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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