Quick answers
- Does Siva K. Chockalingam accept Medicare assignment?
- Yes. Medicare's clinician data says Siva K. Chockalingam 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 Siva K. Chockalingam see?
- In 2024, CMS data shows 425 Original Medicare patients and 1,771 services for Siva K. Chockalingam. This counts Original Medicare only and measures volume, not quality.
- What is Siva K. Chockalingam's NPI number?
- 1356300792. 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 Siva K. Chockalingam, 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 | 425 |
|---|---|
| Services billed to Medicare | 1,771 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)1,055 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)126 services
- Biopsy of large bowel using a flexible endoscope (45380)123 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)109 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)79 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%
- Diabetes45%
- Ischemic heart disease27%
- Chronic kidney disease27%
Hospitals where Siva K. Chockalingam works
Medicare's Facility Affiliation Data lists Siva K. Chockalingam 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.
- KershawhealthCamden, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420048
- Lexington Medical CenterWest Columbia, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420073
- MUSC Health Columbia Medical Center DowntownColumbia, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420026
- Prisma Health BaptistColumbia, SC · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 420086
- Prisma Health Richland HospitalColumbia, SC · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 420018
Practice locations
Addresses where Siva K. Chockalingam is enrolled with Medicare (CMS data updated October 2, 2026).
- 1070 Wildewood Centre DrColumbia, SC 29229 (803) 788‑1100
Group practices
Medicare enrollment lists Siva K. Chockalingam as a member of this group (CMS data updated October 2, 2026).
- Associates in Gastroenterology PA2 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Columbia
Clinicians with the same Medicare primary specialty in Columbia, SC — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356300792 |
| 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