Quick answers
- Does Ramin M. Naeini accept Medicare assignment?
- Yes. Medicare's clinician data says Ramin M. Naeini 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 Ramin M. Naeini see?
- In 2024, CMS data shows 135 Original Medicare patients and 1,282 services for Ramin M. Naeini. This counts Original Medicare only and measures volume, not quality.
- What is Ramin M. Naeini's NPI number?
- 1932430865. 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 Ramin M. Naeini, 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 | 135 |
|---|---|
| Services billed to Medicare | 1,282 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Mri scan of brain without contrast (70551)47 services
- Ct scan of blood vessels of head with contrast (70496)15 services
- Ct scan of blood vessels of neck with contrast (70498)15 services
- X-ray of chest, 1 view (71045)13 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 blood pressure74%
- High cholesterol54%
- Arthritis42%
- Diabetes39%
- Stroke or mini-stroke39%
- Depression30%
Hospitals where Ramin M. Naeini works
Medicare's Facility Affiliation Data lists Ramin M. Naeini 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.
- Kaiser Foundation Hospital - RosevilleRoseville, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050772
- Kaiser Foundation Hospital - SacramentoSacramento, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050425
- Kaiser Foundation Hospital - San FranciscoSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050076
- Kaiser Foundation Hospital So SacramentoSacramento, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050674
- Kaiser Foundation Hospital-Santa RosaSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050690
Practice locations
Addresses where Ramin M. Naeini is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 18; the Medicare profile lists all.
- 1100 Veterans BlvdRedwood City, CA 94063 (650) 299‑2000
- 1150 Veterans BlvdRedwood City, CA 94063 (650) 299‑2000
- 1190 Veterans BlvdRedwood City, CA 94063 (650) 299‑2000
- 1600 Eureka RdRoseville, CA 95661 (916) 784‑4000
- 1643 Eureka RdRoseville, CA 95661 (916) 973‑5300
Group practices
Medicare enrollment lists Ramin M. Naeini as a member of this group (CMS data updated October 2, 2026).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Redwood City
Clinicians with the same Medicare primary specialty in Redwood City, CA — not a recommendation.
Other clinicians in Permanente Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932430865 |
| 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