Quick answers
- Does Roland D. Demarco accept Medicare assignment?
- Yes. Medicare's clinician data says Roland D. Demarco 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 Roland D. Demarco see?
- In 2024, CMS data shows 1,460 Original Medicare patients and 6,335 services for Roland D. Demarco. This counts Original Medicare only and measures volume, not quality.
- What is Roland D. Demarco's NPI number?
- 1821020017. 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 Roland D. Demarco, 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 | 1,460 |
|---|---|
| Services billed to Medicare | 6,335 |
| Different services or procedures | 77 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, gadobutrol, 0.1 ml (A9585)2,478 services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)1,130 services
- Screening 3d breast mammography (77063)1,012 services
- Screening mammography (77067)1,012 services
- Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)92 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 cholesterol74%
- High blood pressure64%
- Arthritis53%
- Osteoporosis27%
- Anxiety24%
- Depression23%
Hospitals where Roland D. Demarco works
Medicare's Facility Affiliation Data lists Roland D. Demarco at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Sutter Amador HospitalJackson, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050014
- Sutter Auburn Faith HospitalAuburn, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050498
- Sutter Davis HospitalDavis, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050537
- Sutter Medical Center, SacramentoSacramento, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050108
- Sutter Roseville Medical CenterRoseville, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050309
Practice locations
Addresses where Roland D. Demarco is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 19; the Medicare profile lists all.
- 1 Medical Plaza DrRoseville, CA 95661 (916) 454‑6868
- 1640 E Roseville Pkwy, Suite 9Roseville, CA 95661 (916) 784‑2277
- 1651 Exposition BlvdSacramento, CA 95815 (916) 731‑7770
- 1655 Creekside DrFolsom, CA 95630 (916) 984‑0739
- 1661 Creekside DrFolsom, CA 95630 (916) 984‑0739
Group practices
Medicare enrollment lists Roland D. Demarco as a member of this group (CMS data updated October 2, 2026).
- Sutter Valley Medical Foundation2,500 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Roseville
Clinicians with the same Medicare primary specialty in Roseville, CA — not a recommendation.
Other clinicians in Sutter Valley Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821020017 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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