Doctor profile · Federal record
Dr. Maximilian Diehn, M.D./PH.D.
Radiation Oncology Physician (CMS: Radiation Oncology) · Stanford, CA
- NPI 1174719850
- Accepts Medicare
- MIPS 75.5 / 100 · 2023
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
875 Blake Wilbur Dr., Dept. of Radiation Oncology (Mc-5847)
Stanford, CA 943055847
(650) 723-6171
Credentials & registration
- NPI registered
- September 2007 — 19 yrs on file
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State license (1)
- California #A92153
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174719850. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
249
Distinct HCPCS
10
Medicare allowed
$41,189
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 61 | 41 | $113 | |
77014 |
Ct guidance for insertion of radiation therapy fields | 33 | 17 | $53 | |
77300 |
Calculation of radiation therapy dose | 28 | 19 | $39 | |
G6002 |
Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 23 | 14 | $24 | |
77338 |
Design and construction of radiation treatment device for high precision radiation therapy | 20 | 19 | $269 | |
77301 |
High precision radiation therapy planning | 19 | 19 | $502 | |
77334 |
Design and construction of complex radiation treatment device | 19 | 17 | $72 | |
77263 |
Complex radiation therapy planning | 17 | 17 | $199 | |
77293 |
Obtaining respiratory data needed to develop the optimal radiation treatment | 17 | 17 | $125 | |
77435 |
Management of cranial lesion surgery using radiation over multiple sessions | 12 | 12 | $758 |
In context: peer comparison
Among 12 peers in Stanford Radiation Oncology Physician, average services per provider: 76. This provider delivers 3.3× the peer median.Open Payments
Industry payments received
All-time total
$1,938
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 2 | $1,937.50 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Maximilian Diehn's medical specialty?
Dr. Maximilian Diehn practices Radiation Oncology Physician in Stanford, CA.
Where does Dr. Maximilian Diehn practice?
Dr. Maximilian Diehn practices at 875 Blake Wilbur Dr., Stanford, CA 943055847. Office phone: 6507236171.
What is Dr. Maximilian Diehn's NPI?
Dr. Maximilian Diehn's National Provider Identifier (NPI) is 1174719850, issued by NPPES.
Does Dr. Maximilian Diehn accept Medicare assignment?
Yes. Dr. Maximilian Diehn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Maximilian Diehn commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Calculation of radiation therapy dose (HCPCS 77300). Source: CMS Medicare Physician & Other Practitioners file.