Quick answers
- Does Ravishankar V. Kalaga accept Medicare assignment?
- Yes. Medicare's clinician data says Ravishankar V. Kalaga 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 Ravishankar V. Kalaga see?
- In 2024, CMS data shows 558 Original Medicare patients and 1,219 services for Ravishankar V. Kalaga. This counts Original Medicare only and measures volume, not quality.
- What is Ravishankar V. Kalaga's NPI number?
- 1174685515. 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 Ravishankar V. Kalaga, 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 | 558 |
|---|---|
| Services billed to Medicare | 1,219 |
| Different services or procedures | 57 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)248 services
- Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician (93018)168 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)115 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)107 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)93 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 disease52%
- Arthritis37%
- Diabetes36%
- Atrial fibrillation32%
Hospitals where Ravishankar V. Kalaga works
Medicare's Facility Affiliation Data lists Ravishankar V. Kalaga 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.
- Prairie Lakes Healthcare System, IncWatertown, SD · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 430005
- Sanford Hospital Webster - CAHWebster, SD · Critical Access Hospital · Emergency services: listed by Medicare · CCN 431311
- Sanford Usd Medical CenterSioux Falls, SD · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 430027
Practice locations
Addresses where Ravishankar V. Kalaga is enrolled with Medicare (CMS data updated October 2, 2026).
- 401 9th Ave NWWatertown, SD 57201 (605) 882‑7000
Group practices
Medicare enrollment lists Ravishankar V. Kalaga as a member of this group (CMS data updated October 2, 2026).
- Prairie Lakes Health Care System Inc109 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in South Dakota →
Other cardiologists in South Dakota
Clinicians with the same Medicare primary specialty in South Dakota — not a recommendation.
Other clinicians in Prairie Lakes Health Care System Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174685515 |
| 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