Quick answers
- Does Raul N. Del Rosario accept Medicare assignment?
- Yes. Medicare's clinician data says Raul N. Del Rosario accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Raul N. Del Rosario see?
- In 2024, CMS data shows 2,154 Original Medicare patients and 3,698 services for Raul N. Del Rosario. This counts Original Medicare only and measures volume, not quality.
- What is Raul N. Del Rosario's NPI number?
- 1548367402. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Raul N. Del Rosario, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 2,154 |
|---|---|
| Services billed to Medicare | 3,698 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Pathology examination of tissue using a microscope, intermediate complexity (88305)2,985 services
- Surgical pathology consultation and report on referred slides prepared elsewhere (88321)170 services
- Special stained specimen slides to examine tissue, initial procedure (88342)139 services
- Special stained specimen slides to examine tissue, each additional procedure (88341)112 services
- Microscopic genetic analysis of tumor, manual (88360)94 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure67%
- Arthritis47%
- Ischemic heart disease27%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)21%
- Chronic kidney disease20%
Practice locations
Addresses where Raul N. Del Rosario is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Hoag DrNewport Beach, CA 92663 (949) 891‑1297
Group practices
Medicare enrollment lists Raul N. Del Rosario as a member of this group (CMS data updated October 2, 2026).
- Newport Harbor Pathology Medical Group Inc27 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Newport Beach
Clinicians with the same Medicare primary specialty in Newport Beach, CA — not a recommendation.
Other clinicians in Newport Harbor Pathology Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548367402 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians