Dr. Massimo D'apuzzo, MD PHD
Pathology (Neuropathology Physician)
1500 E Duarte Rd
Duarte, CA 91010
Who else practices at this address →
Los Angeles County includes primary care (7% of residents) and mental health (13% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 33
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 826
Licensed in California since 2004, according to the Medical Board of California. 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
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
-
Neuropathology Physician primary
CA license A88682 (first issued 2004; current) -
Anatomic Pathology Physician
CA license A88682 (first issued 2004; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Cedars-Sinai Medical Center Los Angeles, CA
- Uci Health-Orange Orange, CA
- Hoag Memorial Hospital Presbyterian Newport Beach, CA
Medical groups
- City of Hope Medical Foundation (982 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
- 826
- Services billed
- 4,541
- Patients’ average age
- 72
| Service | Times | Patients |
|---|---|---|
| Pathology examination of tissue using a microscope, intermediate complexity | 1,269 | 421 |
| Special stained specimen slides to examine tissue, each additional procedure | 1,209 | 245 |
| Special stained specimen slides to examine tissue, initial procedure | 608 | 384 |
| Pathology examination of tissue using a microscope, moderately high complexity | 307 | 146 |
| Surgical pathology consultation and report on referred slides prepared elsewhere | 264 | 260 |
| Microscopic genetic analysis of tumor, manual | 157 | 88 |
| Special stained specimen slides to identify organisms including interpretation and report | 152 | 98 |
| Pathology examination of tissue using a microscope, high complexity | 96 | 60 |
| Pathology examination of specimen during surgery, first tissue block | 57 | 36 |
| Special stained specimen slides to examine tissue including interpretation and report | 41 | 25 |
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, 1 companies reported 1 payments worth $10,480 in total to this clinician.
| Uoc USA Inc | $10,480 |
|---|
| Consulting Fee | $10,480 |
|---|
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Uoc USA Inc Oct 27, 2025 | Consulting Fee U-Star II, U2 · Orthopedic Knee and Oncology Implants | $10,480 |
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.