Quick answers
- Does Shana M. Landau accept Medicare assignment?
- Yes. Medicare's clinician data says Shana M. Landau 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 Shana M. Landau see?
- In 2024, CMS data shows 1,210 Original Medicare patients and 1,994 services for Shana M. Landau. This counts Original Medicare only and measures volume, not quality.
- What is Shana M. Landau's NPI number?
- 1437190915. 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 Shana M. Landau, 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 | 1,210 |
|---|---|
| Services billed to Medicare | 1,994 |
| Different services or procedures | 74 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Ct scan of chest with contrast (71260)323 services
- Ct scan of abdomen and pelvis before and after contrast (74178)277 services
- Mri scan of abdomen before and after contrast (74183)155 services
- X-ray of chest, 1 view (71045)138 services
- Ct scan of abdomen and pelvis with contrast (74177)129 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 cholesterol71%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)51%
- Arthritis42%
- Diabetes41%
- Ischemic heart disease34%
Practice locations
Addresses where Shana M. Landau is enrolled with Medicare (CMS data updated October 2, 2026).
- 1000 FivepointIrvine, CA 92618 (949) 671‑4673
- 1500 Duarte RdDuarte, CA 91010 (626) 256‑4673
- 1500 E Duarte RdDuarte, CA 91010
- 209 Fair Oaks AveSouth Pasadena, CA 91030 (626) 396‑2900
- 44151 15th St W, Suite 101Lancaster, CA 93534 (661) 902‑5600
Group practices
Medicare enrollment lists Shana M. Landau as a member of this group (CMS data updated October 2, 2026).
- City of Hope Medical Foundation982 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Irvine
Clinicians with the same Medicare primary specialty in Irvine, CA — not a recommendation.
Other clinicians in City of Hope Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1437190915 |
| 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