David Joel Maron, MD
NPI 1538251962ActiveIndividual· Internal Medicine, Cardiovascular Disease· Stanford, CA
Internal Medicine, Cardiovascular Disease (MD) in Stanford, California, trained at University of Southern California Keck School of Medicine (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $188,014 for 965 claims, against $26,873 paid for services in 2024. Heartflow, Inc. was the largest of 5 companies reporting payments in 2025, $13,032 in all, mostly consulting fees.
Overview
| NPI | 1538251962 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 30, 2006 |
| Last updated in NPPES | Apr 23, 2024 |
| Certified by provider | Apr 23, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | G48267 | CA |
| Internal Medicine | 207R00000X | G48267 | CA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | MD24919 | TN |
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) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 279 |
|---|---|
| Services billed | 373 across 17 procedure codes |
| Paid by Medicare | $26,873 |
Part D prescriptions in 2024
| Prescriptions (claims) | 965 · 2,352 30-day fills |
|---|---|
| Patients | 159 |
| Total drug cost | $188,014 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1981 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$13,032 · 9 payments from 5 companies
- 2024$793.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Heartflow, Inc. | $6,600 | 3 |
| Bayer Healthcare LLC | $3,505 | 2 |
| Abiomed | $2,750 | 2 |
| Merck Sharp & Dohme LLC | $125.00 | 1 |
| Idorsia Pharmaceuticals US Inc | $52.48 | 1 |
What the 2025 payments were for
- Consulting Fee$12,707 · 6 payments
- Food and Beverage$272.70 · 2 payments
- Education$52.48 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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