Quick answers
- Does Claude Laurent R. Sader accept Medicare assignment?
- Yes. Medicare's clinician data says Claude Laurent R. Sader 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 Laurent R. Sader see?
- In 2024, CMS data shows 1,918 Original Medicare patients and 7,180 services for Claude Laurent R. Sader. This counts Original Medicare only and measures volume, not quality.
- What is Claude Laurent R. Sader's NPI number?
- 1578510392. 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 Laurent R. Sader, 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 | 1,918 |
|---|---|
| Services billed to Medicare | 7,180 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)2,130 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,869 services
- Anticoagulant management of patient taking warfarin (93793)1,435 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)752 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)283 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%
- Arthritis49%
- Ischemic heart disease45%
- Atrial fibrillation36%
- Diabetes25%
Hospitals where Claude Laurent R. Sader works
Medicare's Facility Affiliation Data lists Claude Laurent R. Sader 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.
- Cape Cod HospitalHyannis, MA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 220012
- Falmouth HospitalFalmouth, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220135
- Nantucket Cottage HospitalNantucket, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220177
Practice locations
Addresses where Claude Laurent R. Sader is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 100 Ter Heun DrFalmouth, MA 02540 (508) 862‑7874
- 25 Main StHyannis, MA 02601 (508) 778‑1829
- 27 Park StHyannis, MA 02601 (508) 771‑1800
- 35 Wilkens LnHyannis, MA 02601
- 35 Wilkens Ln, Cuda Women'S Health CenterHyannis, MA 02601 (508) 957‑1700
Group practices
Medicare enrollment lists Claude Laurent R. Sader as a member of these groups (CMS data updated October 2, 2026).
- Physicians of Cape Cod Hospital334 clinicians in the group
- Medical Affiliates of Cape Cod Inc229 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Massachusetts →
Other cardiologists in Falmouth
Clinicians with the same Medicare primary specialty in Falmouth, MA — not a recommendation.
Other clinicians in Physicians of Cape Cod Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1995 (31 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578510392 |
| 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