Stephen Vaughan, MD
NPI 1417010869ActiveIndividual· Internal Medicine· Redwood City, CA
Internal Medicine (MD) in Redwood City, California, trained at Js Weill Medical College, Cornell University (class of 1998). 242 Medicare patients in 2024, $53,599 paid; nearly all of their 100 Part D prescriptions were generic (93%). Olympus America Inc. reported $18.01 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1417010869 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Dec 18, 2006 |
| Last updated in NPPES | Jul 29, 2026 |
| Certified by provider | Jul 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | C53520 | CA |
| Internal Medicine | 207R00000X | 224878 | NY |
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 | 242 |
|---|---|
| Services billed | 506 across 8 procedure codes |
| Paid by Medicare | $53,599 |
Part D prescriptions in 2024
| Prescriptions (claims) | 100 · 104 30-day fills |
|---|---|
| Patients | 53 |
| Total drug cost | $3,999 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Js Weill Medical College, Cornell University |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Internal Medicine |
Medical group
- Vituity Hospitalists PCRedwood City, CA · 79 clinicians
Hospital affiliation
- Sequoia HospitalRedwood City, CA
Industry payments (Open Payments)
- 2025$18.01 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Olympus America Inc. | $18.01 | 1 |
What the 2025 payments were for
- Food and Beverage$18.01 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 100 internal medicine physicians in Redwood City · All internal medicine physicians in California