John Alston Riddick, M.D.
NPI 1417131715ActiveIndividual· Internal Medicine, Interventional Cardiology· Nashville, TN
Internal Medicine, Interventional Cardiology (M.D.) in Nashville, Tennessee, trained at Vanderbilt University School of Medicine (class of 2001). In 2024 Medicare paid $162,988 for 2,522 patients, and Part D covered 1,712 of their prescriptions, 85% of them generic. Medtronic, Inc. was the largest of 7 companies reporting payments in 2025, $1,501 in all, mostly travel and lodging.
Overview
| NPI | 1417131715 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 21, 2007 |
| Last updated in NPPES | Feb 9, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 37285 | TN |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 37285 | TN |
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 - Interventional Cardiology (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,522 |
|---|---|
| Services billed | 5,153 across 77 procedure codes |
| Paid by Medicare | $162,988 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,712 · 4,019 30-day fills |
|---|---|
| Patients | 318 |
| Total drug cost | $238,477 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Vanderbilt University School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Interventional Cardiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical group
- Centennial Heart LLCGallatin, TN · 115 clinicians
Hospital affiliations
- Ascension Saint Thomas HospitalNashville, TN
- Tristar Centennial Medical CenterNashville, TN
- Tristar Hendersonville Medical CenterHendersonville, TN
- Tristar Summit Medical CenterHermitage, TN
- Vanderbilt University Medical CenterNashville, TN
Industry payments (Open Payments)
- 2025$1,501 · 22 payments from 7 companies
- 2024$6,656 · 34 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $1,090 | 7 |
| Edwards Lifesciences Corporation | $200.44 | 4 |
| Boston Scientific Corporation | $81.34 | 5 |
| Abbott Laboratories | $71.42 | 3 |
| Cardiac Dimensions, Inc. | $19.81 | 1 |
What the 2025 payments were for
- Travel and Lodging$773.45 · 3 payments
- Food and Beverage$727.10 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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