Maximilian Diehn, M.D./PH.D.
NPI 1174719850ActiveIndividual· Radiology, Radiation Oncology· Stanford, CA
Radiology, Radiation Oncology (M.D./PH.D.) in Stanford, California, trained at Stanford University School of Medicine (class of 2004). Medicare paid $9,539 for services to 54 patients in 2024. Chugai Pharmaceutical Co., Ltd. was the largest of 2 companies reporting payments in 2025, $6,465 in all, mostly consulting fees.
Overview
| NPI | 1174719850 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D./PH.D. |
| Sole proprietor | No |
| NPI issued | Sep 17, 2007 |
| Last updated in NPPES | Sep 17, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | A92153 | 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 - Radiation Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 54 |
|---|---|
| Services billed | 88 across 17 procedure codes |
| Paid by Medicare | $9,539 |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliation
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$6,465 · 2 payments from 2 companies
- 2024$1,938 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Chugai Pharmaceutical Co., Ltd. | $3,280 | 1 |
| Astrazeneca Uk Limited | $3,185 | 1 |
What the 2025 payments were for
- Consulting Fee$6,465 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other radiation oncologists in Stanford
- 1295155422
- 1316002116
- 1376084558
- 1417418252
- 1487830741
- 1487943916
- 1568478014
- 1639332687
- 1588291447
- 1093154395
- 1427314855
- 1568500551
All 46 radiation oncologists in Stanford · All radiation oncologists in California