Ioannis S. Chatzizisis, MD, PHD
NPI 1528406097ActiveIndividual· Internal Medicine, Cardiovascular Disease· Coral Gables, FL
Internal Medicine, Cardiovascular Disease (MD, PHD) with University of Miami, practicing in Coral Gables, Florida. Their prescriptions cost Medicare Part D more than their services did: $151,502 for 683 claims, against $43,252 paid for services in 2024. Heartflow, Inc. was the largest of 9 companies reporting payments in 2025, $3,692 in all, mostly food and beverage.
Overview
| NPI | 1528406097 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | Yes |
| NPI issued | Jun 6, 2013 |
| Last updated in NPPES | Dec 18, 2024 |
| Certified by provider | Dec 18, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | ME159593 | FL |
| Internal Medicine, Interventional Cardiology | 207RI0011X | ME159593 | FL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (FL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 228 |
|---|---|
| Services billed | 438 across 42 procedure codes |
| Paid by Medicare | $43,252 |
Part D prescriptions in 2024
| Prescriptions (claims) | 683 · 1,624 30-day fills |
|---|---|
| Patients | 117 |
| Total drug cost | $151,502 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Interventional Cardiology |
| Telehealth | Offers telehealth |
Medical group
- University of MiamiMiami, FL · 2,377 clinicians
Industry payments (Open Payments)
- 2025$3,692 · 35 payments from 9 companies
- 2024$3,753 · 33 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Heartflow, Inc. | $1,784 | 7 |
| Teleflex LLC | $639.43 | 5 |
| Medtronic, Inc. | $593.44 | 13 |
| Boston Scientific Corporation | $306.06 | 4 |
| Abbott Laboratories | $145.67 | 1 |
What the 2025 payments were for
- Food and Beverage$2,220 · 31 payments
- Travel and Lodging$891.76 · 3 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$579.54 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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