Dr. Maximilian Diehn, MD, PhD

Dr. Diehn practices at Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University.

Dr. Diehn's NPI, 1174719850, was assigned on September 17, 2007. Dr. Diehn graduated from Stanford University School Of Medicine in 2004. Dr. Diehn's California license number on file is A92153.

Dr. Diehn's primary practice is Stanford Hospital at 300 Pasteur Drive, at 300 Pasteur Drive, Stanford, CA 94305 in Santa Clara County. The practice phone is (650) 723-4000.

Dr. Diehn's primary practice is Stanford Hospital at 300 Pasteur Drive in Stanford, California, part of Stanford University. The medical group on file is Stanford Health Care. Dmand AI also links Dr. Diehn to 1 more hospital and 1 group practice or clinic, each named with a free account. Dr. Diehn's employer is on file too: a hospital.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diehn practices, 3 sites in all. Vendor and product names are available with a free account.

Radiation oncology is Dr. Diehn's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Diehn is board certified in radiation oncology by the American Board of Radiology. Dr. Diehn has a license on file in California.

Dmand AI lists lung cancer radiation and lymphoma radiation among the conditions Dr. Diehn treats.

CMS data shows 20 Medicare services from Dr. Diehn across 1 procedure code in 2024, for 54 Medicare patients. Medicare paid $829 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 54 Medicare patients who saw Dr. Diehn in 2024. The largest group is 65 to 74, with 31 patients. 74% of them have high cholesterol, and 72% have cancer. Their average risk score is 1.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Diehn's median patient age at 65, with 38% women.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Diehn for performance year 2024, reported as part of a group. Dr. Diehn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Diehn as offering telehealth.

Dmand AI links 220 papers to Dr. Diehn, published from 2002 to 2025. 2020 was the busiest year, with 23. The most frequent topics are Lung Neoplasms, Carcinoma, Non-Small-Cell Lung and Radiosurgery. Dr. Diehn has published most often in Int J Radiat Oncol Biol Phys. Dr. Diehn's most frequent co-authors are Billy W. Loo, MD, PhD, Arash Ash Alizadeh, MD, PhD and Heather Ann Wakelee, MD.

Dmand AI links Dr. Diehn to 3 clinical trials. 1 is still active or recruiting. Conditions studied include Carcinoma, Non-Small-Cell Lung and Carcinoma, Bronchogenic. Stanford University sponsors the most, 2.

CMS Open Payments shows 75 general payments to Dr. Diehn from 10 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 80% of the total. AstraZeneca Pharmaceuticals LP paid the most, $47,496.

Dmand AI lists 1 award for Dr. Diehn, most recently CMS Stage 1 EHR in 2013.

Dr. Diehn graduated from Stanford University School Of Medicine in 2004.

Dr. Diehn is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.