Quick answers
- Does Subramanian Gnanaguruparan accept Medicare assignment?
- Yes. Medicare's clinician data says Subramanian Gnanaguruparan 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 Subramanian Gnanaguruparan see?
- In 2024, CMS data shows 522 Original Medicare patients and 1,875 services for Subramanian Gnanaguruparan. This counts Original Medicare only and measures volume, not quality.
- What is Subramanian Gnanaguruparan's NPI number?
- 1396058533. 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 Subramanian Gnanaguruparan, 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 | 522 |
|---|---|
| Services billed to Medicare | 1,875 |
| Different services or procedures | 46 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)364 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)173 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)168 services
- Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)155 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)123 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%
- Arthritis52%
- Ischemic heart disease50%
- Diabetes47%
- Heart failure43%
Hospitals where Subramanian Gnanaguruparan works
Medicare's Facility Affiliation Data lists Subramanian Gnanaguruparan 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.
- Christiana HospitalNewark, DE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 080001
- Inspira Medical Center Mullica HillElmer, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310069
Practice locations
Addresses where Subramanian Gnanaguruparan is enrolled with Medicare (CMS data updated October 2, 2026).
- 125 E Ave D, Cchi Cardiology Consultants NjWoodstown, NJ 08098 (856) 769‑3900
- 390 Vineyard Way, Suite 501West Grove, PA 19390 (610) 869‑0953
- 4755 Ogletown Stanton RdNewark, DE 19718
Group practices
Medicare enrollment lists Subramanian Gnanaguruparan as a member of these groups (CMS data updated October 2, 2026).
- Christiana Care Health Services Inc1,483 clinicians in the group
- Christiana Care Pennsylvania Inc177 clinicians in the group
- Christiana Care Health Initiatives32 clinicians in the group
Specialties
Other internal medicine doctors in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Other clinicians in Christiana Care Health Services Inc
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) | 1396058533 |
| 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