Dr. Daniel J. Dilorenzo, MD, PHD
Neurosurgery (Neurological Surgery Physician)
25455 Barton Rd Ste 108a
Loma Linda, CA 92354
Who else practices at this address →
San Bernardino County includes primary care (5% of residents) and mental health (26% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Harvard Medical School (1999)
- Years since graduation
- 27
- In the NPI registry since
- 2008
- Medicare patients seen, 2024
- 16
Licensed in Washington since 2014, according to the Washington State Department of Health. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1999Medical school: Harvard Medical School
- 2008Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Neurological Surgery Physician primary
CA license C153466 (first issued 2018; current) · TX license BP10026959 · WA license MD60464676 (first issued 2014; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Loma Linda University Medical Center Loma Linda, CA
Medical groups
- Faculty Physicians and Surgeons of Llusm (1,315 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 16
- Services billed
- 41
- Patients’ average age
- 70
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 5 companies reported 10 payments worth $1,147 in total to this clinician.
| Boston Scientific Corporation | $533 |
|---|---|
| Axogen | $368 |
| Novo Nordisk Inc | $119 |
| Spr Therapeutics, Inc | $103 |
| Si-bone, Inc. | $24.26 |
| Food and Beverage | $746 |
|---|---|
| Travel and Lodging | $401 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Axogen Oct 25, 2025 | Travel and Lodging AXOGUARD; AXOGUARD · travel to LOS ANGELES, CA · in-kind | $208 |
| Boston Scientific Corporation Oct 3, 2025 | Travel and Lodging WaveWriter Alpha Prime 16 · WaveWriter Alpha_NMD · travel to Valencia, CA · in-kind | $188 |
| Boston Scientific Corporation Oct 3, 2025 | Travel and Lodging WaveWriter Alpha Prime 16 · WaveWriter Alpha_NMD · travel to Valencia, CA · in-kind | $5.00 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.