Nathan Reuven Stein, MD
NPI 1073044970ActiveIndividual· Internal Medicine, Cardiovascular Disease· San Diego, CA
Internal Medicine, Cardiovascular Disease (MD) in San Diego, California, trained at University of California, San Diego School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $303,430 for 1,962 claims, against $3,563 paid for services in 2024. Boston Scientific Corporation reported $135.93 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1073044970 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 22, 2017 |
| Last updated in NPPES | Aug 19, 2025 |
| Certified by provider | Aug 19, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A159770 | CA |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 53 |
|---|---|
| Services billed | 78 across 19 procedure codes |
| Paid by Medicare | $3,563 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,962 · 5,346 30-day fills |
|---|---|
| Patients | 507 |
| Total drug cost | $303,430 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Internal Medicine |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliations
- Kaiser Foundation Hospital - San DiegoSan Diego, CA
- Kaiser Foundation Hospital - San MarcosSan Marcos, CA
Industry payments (Open Payments)
- 2025$135.93 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $135.93 | 3 |
What the 2025 payments were for
- Food and Beverage$135.93 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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