Nathaniel James Myall, MD
NPI 1285992230ActiveIndividual· Internal Medicine, Medical Oncology· Stanford, CA
Internal Medicine, Medical Oncology (MD) in Stanford, California, trained at Stanford University School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $827,980 for 218 claims, against $103,407 paid for services in 2024. Janssen Scientific Affairs, LLC reported $26.21 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1285992230 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 27, 2012 |
| Last updated in NPPES | Apr 15, 2024 |
| Certified by provider | Apr 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | A126573 | CA |
| Internal Medicine | 207R00000X | A126573 | CA |
| Internal Medicine, Hematology | 207RH0000X | A126573 | 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 | 204 |
|---|---|
| Services billed | 926 across 13 procedure codes |
| Paid by Medicare | $103,407 |
Part D prescriptions in 2024
| Prescriptions (claims) | 218 · 248 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $827,980 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Stanford Health CareStanford, CA
- Stanford Health Care Tri-ValleyPleasanton, CA
Industry payments (Open Payments)
- 2025$26.21 · 1 payment from 1 company
- 2024$242.55 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Scientific Affairs, LLC | $26.21 | 1 |
What the 2025 payments were for
- Food and Beverage$26.21 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 85 medical oncologists in Stanford · All medical oncologists in California