Quick answers
- Does Jagpreet Grewal accept Medicare assignment?
- Yes. Medicare's clinician data says Jagpreet Grewal 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 Jagpreet Grewal see?
- In 2024, CMS data shows 192 Original Medicare patients and 492 services for Jagpreet Grewal. This counts Original Medicare only and measures volume, not quality.
- What is Jagpreet Grewal's NPI number?
- 1578911939. 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 Jagpreet Grewal, 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 | 192 |
|---|---|
| Services billed to Medicare | 492 |
| Different services or procedures | 23 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)91 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)85 services
- Critical care, first 30-74 minutes (99291)64 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)40 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)34 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%
- Ischemic heart disease75%
- Heart failure75%
- Chronic kidney disease68%
- Diabetes65%
Hospitals where Jagpreet Grewal works
Medicare's Facility Affiliation Data lists Jagpreet Grewal 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
- Robert Wood Johnson University HospitalNew Brunswick, NJ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 310038
Practice locations
Addresses where Jagpreet Grewal is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Robert Wood Johnson PlNew Brunswick, NJ 08901
- 1 Robert Wood Johnson Place, Robert Wood Johnson HospitalNew Brunswick, NJ 08901 (732) 828‑3000
- 125 Paterson StNew Brunswick, NJ 08901
- 3100 Quakerbridge Rd, Suite 28Trenton, NJ 08619 (609) 689‑7031
Group practices
Medicare enrollment lists Jagpreet Grewal as a member of these groups (CMS data updated October 2, 2026).
- Barnabas Health Medical Group PC1,070 clinicians in the group
- Rutgers Health-Rwj Scleroderma Program391 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New Jersey →
Other cardiologists in New Brunswick
Clinicians with the same Medicare primary specialty in New Brunswick, NJ — not a recommendation.
Other clinicians in Barnabas Health Medical Group PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578911939 |
| 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