Dr. Maximilian Diehn, M.D./PH.D.
What this data tells you about Dr. Diehn
Dr. Maximilian Diehn is a radiology - diagnostic specialist in Stanford, CA, with 18 years of NPI registration. Based on federal Medicare data, Dr. Diehn performed 249 Medicare services across 192 unique beneficiaries.
Between the years covered by Open Payments, Dr. Diehn received a total of $75,786 from 9 pharmaceutical and/or device companies across 64 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in radiology - diagnostic. The majority of payments are for consulting, which typically reflects recognized clinical expertise sought by manufacturers. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Diehn is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
61 | $90 | $461 |
| CT guidance for radiation therapy This procedure uses computed tomography imaging to guide the precise placement of radiation therapy fields. It ensures accurate positioning for targeted treatment delivery. |
33 | $43 | $752 |
| Calculation of radiation therapy dose | 28 | $31 | $347 |
| Stereoscopic X-ray guidance for radiation therapy localization This procedure uses stereoscopic X-ray imaging to precisely locate the target area for radiation therapy delivery. |
23 | $20 | $341 |
| Design and construction of radiation treatment device This code covers the design and construction of a device used for high precision radiation therapy. It does not include the actual administration of radiation treatment. |
20 | $216 | $1,286 |
| High precision radiation therapy planning This procedure involves the detailed planning and setup required for delivering high-precision radiation therapy to a target area of the body. |
19 | $385 | $7,384 |
| Design and construction of complex radiation treatment device This code covers the design and construction of a complex radiation treatment device. It does not specify the clinical purpose or conditions treated. |
19 | $55 | $793 |
| Complex radiation therapy planning | 17 | $159 | $1,327 |
| Respiratory data collection for radiation therapy planning This procedure involves gathering respiratory data to help develop the optimal radiation treatment plan. |
17 | $100 | $998 |
| Fractionated radiation therapy for cranial lesion Treatment using radiation delivered in multiple sessions to manage a lesion in the head. |
12 | $606 | $7,368 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
The majority of payments (97%) are consulting fees, which typically reflect recognized clinical expertise sought by manufacturers. Total industry engagement is in the top 2% for radiology - diagnostic in CA.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Diehn is a clinical cardiology specialist, with moderate Medicare volume, with consulting-driven industry engagement in the top 2% of CA peers, with 18 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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