Quick answers
- Does Leonard L. Sandler accept Medicare assignment?
- Yes. Medicare's clinician data says Leonard L. Sandler 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 Leonard L. Sandler see?
- In 2024, CMS data shows 2,306 Original Medicare patients and 10,573 services for Leonard L. Sandler. This counts Original Medicare only and measures volume, not quality.
- What is Leonard L. Sandler's NPI number?
- 1184603227. 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 Leonard L. Sandler, 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 | 2,306 |
|---|---|
| Services billed to Medicare | 10,573 |
| Different services or procedures | 66 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,942 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)1,706 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)1,364 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,086 services
- Injection, regadenoson, 0.1 mg (J2785)697 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%
- Arthritis61%
- Ischemic heart disease57%
- Diabetes45%
- Atrial fibrillation40%
Hospitals where Leonard L. Sandler works
Medicare's Facility Affiliation Data lists Leonard L. Sandler 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.
- Centrastate Medical CenterFreehold, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310111
- Community Medical CenterToms River, NJ · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 310041
- Jersey Shore University Medical CenterNeptune, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310073
- JFK University Medical CenterEdison, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310108
- Ocean Medical CenterBrick, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310052
Practice locations
Addresses where Leonard L. Sandler is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.
- 1 Hwy 35Keyport, NJ 07735 (732) 360‑6333
- 115 E Bay AveManahawkin, NJ 08050 (609) 971‑3300
- 1820 State Route 33, Suite 4bNeptune, NJ 07753 (732) 776‑8500
- 1945 Route 33Neptune, NJ 07754 (732) 776‑4300
- 21 N Gilbert StTinton Falls, NJ 07701 (732) 542‑7600
Group practices
Medicare enrollment lists Leonard L. Sandler as a member of these groups (CMS data updated October 2, 2026).
- Cardiovascular Associates of the Delaware Valley, P A98 clinicians in the group
- Meridian Cardiovascular Interpretive Services PC58 clinicians in the group
- Ea Health - New Jersey LLC38 clinicians in the group
- Shore Heart Group, PA3 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New Jersey →
Other cardiologists in Keyport
Clinicians with the same Medicare primary specialty in Keyport, NJ — not a recommendation.
Other clinicians in Cardiovascular Associates of the Delaware Valley, P A
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1184603227 |
| 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