Quick answers
- Does Vicki J. Portnoff accept Medicare assignment?
- Yes. Medicare's clinician data says Vicki J. Portnoff 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 Vicki J. Portnoff see?
- In 2024, CMS data shows 235 Original Medicare patients and 723 services for Vicki J. Portnoff. This counts Original Medicare only and measures volume, not quality.
- What is Vicki J. Portnoff's NPI number?
- 1518910264. 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 Vicki J. Portnoff, 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 | 235 |
|---|---|
| Services billed to Medicare | 723 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- X-ray of chest, 2 views (71046)81 services
- X-ray of abdomen, 1 view (74018)21 services
- X-ray of ankle, minimum of 3 views (73610)19 services
- X-ray of foot, minimum of 3 views (73630)15 services
- X-ray of shoulder, minimum of 2 views (73030)12 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 pressure75%
- High cholesterol75%
- Arthritis60%
- Diabetes46%
- Chronic kidney disease33%
- Ischemic heart disease28%
Practice locations
Addresses where Vicki J. Portnoff is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 41; the Medicare profile lists all.
- 1100 N Tustin Ave, Suite ASanta Ana, CA 92705 (714) 835‑6055
- 11525 Brookshire Ave, Suite 111Downey, CA 90241 (562) 904‑1111
- 12370 Hesperia Rd, Suite 15Victorville, CA 92395 (760) 553‑7000
- 16130 Ventura Blvd, Suite 100Encino, CA 91436 (818) 933‑2020
- 1821 W Olive AveBurbank, CA 91506 (818) 841‑8880
Group practices
Medicare enrollment lists Vicki J. Portnoff as a member of these groups (CMS data updated October 2, 2026).
- Beverly Radiology Medical Group III328 clinicians in the group
- Desert Advanced Imaging Medical Center208 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Santa Ana
Clinicians with the same Medicare primary specialty in Santa Ana, CA — not a recommendation.
Other clinicians in Beverly Radiology Medical Group III
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 1971 (55 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518910264 |
| 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