Ryan Scott Mack, MD
NPI 1447516174ActiveIndividual· Internal Medicine, Cardiovascular Disease· Georgetown, TX
Internal Medicine, Cardiovascular Disease (MD) in Georgetown, Texas, trained at University of Texas Medical School at San Antonio (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $1,314,739 for 6,884 claims, against $229,711 paid for services in 2024. Pfizer Inc. was the largest of 10 companies reporting payments in 2025, $468.38 in all, mostly food and beverage.
Overview
| NPI | 1447516174 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 6, 2012 |
| Last updated in NPPES | Feb 9, 2022 |
| Certified by provider | Oct 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | Q3284 | TX |
| Internal Medicine | 207R00000X | BP10043155 | TX |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,611 |
|---|---|
| Services billed | 4,516 across 42 procedure codes |
| Paid by Medicare | $229,711 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,884 · 18,239 30-day fills |
|---|---|
| Patients | 1,005 |
| Total drug cost | $1,314,739 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at San Antonio |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Internal Medicine |
Medical group
- St Davids Heart and Vascular PLLCCedar Park, TX · 203 clinicians
Hospital affiliations
- Baylor Scott & White Medical Center - Round RockRound Rock, TX
- Round Rock Medical CenterRound Rock, TX
- St David's Medical CenterAustin, TX
Industry payments (Open Payments)
- 2025$468.38 · 20 payments from 10 companies
- 2024$340.19 · 19 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $111.14 | 4 |
| Bayer Healthcare Pharmaceuticals Inc. | $70.13 | 3 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $55.72 | 3 |
| Merck Sharp & Dohme LLC | $42.80 | 2 |
| Amgen Inc. | $39.42 | 2 |
What the 2025 payments were for
- Food and Beverage$448.16 · 19 payments
- Education$20.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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