Quick answers
- Does Kathleen L. Ruchalski accept Medicare assignment?
- Yes. Medicare's clinician data says Kathleen L. Ruchalski 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 Kathleen L. Ruchalski see?
- In 2024, CMS data shows 591 Original Medicare patients and 33,464 services for Kathleen L. Ruchalski. This counts Original Medicare only and measures volume, not quality.
- What is Kathleen L. Ruchalski's NPI number?
- 1235306077. 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 Kathleen L. Ruchalski, 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 | 591 |
|---|---|
| Services billed to Medicare | 33,464 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)30,576 services
- Ct scan of chest with contrast (71260)555 services
- Ct scan of abdomen and pelvis with contrast (74177)531 services
- Piflufolastat f-18, diagnostic, 1 millicurie (A9595)363 services
- Nuclear medicine study from skull base to mid-thigh with ct scan (78815)291 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 pressure74%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)65%
- Arthritis48%
- Ischemic heart disease38%
- Diabetes31%
Hospitals where Kathleen L. Ruchalski works
Medicare's Facility Affiliation Data lists Kathleen L. Ruchalski 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.
- Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050262
- Santa Monica - UCLA Medical Center & Orthopaedic HospitalSanta Monica, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050112
Practice locations
Addresses where Kathleen L. Ruchalski is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 12; the Medicare profile lists all.
- 100 Medical PlazaLos Angeles, CA 90095 (310) 301‑6800
- 100 Medical Plaza, Suite 170Los Angeles, CA 90095 (310) 319‑1234
- 1250 16th StSanta Monica, CA 90404 (424) 259‑6000
- 1250 16th St, Suite 2340Santa Monica, CA 90404 (424) 259‑6000
- 200 Medical PlazaLos Angeles, CA 90095 (310) 301‑6800
Group practices
Medicare enrollment lists Kathleen L. Ruchalski as a member of this group (CMS data updated October 2, 2026).
- UCLA Radiology Medical Group202 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Other clinicians in UCLA Radiology Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235306077 |
| 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