Quick answers
- Does Claude B. Sirlin accept Medicare assignment?
- Yes. Medicare's clinician data says Claude B. Sirlin 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 Claude B. Sirlin see?
- In 2024, CMS data shows 828 Original Medicare patients and 2,914 services for Claude B. Sirlin. This counts Original Medicare only and measures volume, not quality.
- What is Claude B. Sirlin's NPI number?
- 1730261793. 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 Claude B. Sirlin, 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 | 828 |
|---|---|
| Services billed to Medicare | 2,914 |
| Different services or procedures | 45 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Injection, gadobutrol, 0.1 ml (A9585)1,851 services
- X-ray of abdomen, 1 view (74018)174 services
- Ct scan of abdomen and pelvis with contrast (74177)162 services
- Mri scan of abdomen before and after contrast (74183)147 services
- Mri scan of pelvis before and after contrast (72197)65 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 cholesterol72%
- Arthritis48%
- Diabetes38%
- Chronic kidney disease36%
- Ischemic heart disease33%
Hospitals where Claude B. Sirlin works
Medicare's Facility Affiliation Data lists Claude B. Sirlin 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.
- Imperial Valley Health - El Centro HospitalEl Centro, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050045
- UC San Diego Health Hillcrest - Hillcrest Medical CenterSan Diego, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050025
Practice locations
Addresses where Claude B. Sirlin is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 14; the Medicare profile lists all.
- 1200 Garden View Rd, Suite 210Encinitas, CA 92024 (800) 926‑8273
- 1415 Ross AveEl Centro, CA 92243 (800) 926‑8273
- 16950 Via TazonSan Diego, CA 92127 (800) 926‑8273
- 200 W Arbor DrSan Diego, CA 92103
- 3855 Health Sciences DrLa Jolla, CA 92093 (800) 926‑8273
Group practices
Medicare enrollment lists Claude B. Sirlin as a member of this group (CMS data updated October 2, 2026).
- Regents of the University of California2,089 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Interventional Radiologyalso
Other radiologists in Encinitas
Clinicians with the same Medicare primary specialty in Encinitas, CA — not a recommendation.
Other clinicians in Regents of the University of California
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730261793 |
| 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