Quick answers
- Does Kannan Natarajan accept Medicare assignment?
- Yes. Medicare's clinician data says Kannan Natarajan 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 Kannan Natarajan see?
- In 2024, CMS data shows 260 Original Medicare patients and 810 services for Kannan Natarajan. This counts Original Medicare only and measures volume, not quality.
- What is Kannan Natarajan's NPI number?
- 1861427031. 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 Kannan Natarajan, 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 | 260 |
|---|---|
| Services billed to Medicare | 810 |
| Different services or procedures | 90 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Ultrasonic guidance for blood vessel access (76937)126 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)108 services
- Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)90 services
- Review by radiologist of arm or leg artery image (75710)51 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)37 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 disease54%
- Arthritis51%
- Diabetes48%
- Chronic kidney disease48%
Hospitals where Kannan Natarajan works
Medicare's Facility Affiliation Data lists Kannan Natarajan 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.
- Ascension St Vincent AndersonAnderson, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150088
- Ascension St Vincent HospitalIndianapolis, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150084
- Ascension St Vincent KokomoKokomo, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150010
- Hendricks Regional HealthDanville, IN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 150005
- Riverview HealthNoblesville, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150059
Practice locations
Addresses where Kannan Natarajan is enrolled with Medicare (CMS data updated October 2, 2026).
- 10580 N Meridian StCarmel, IN 46290 (317) 583‑5000
- 10590 N Meridian StCarmel, IN 46290
- 2001 W 86th StIndianapolis, IN 46260 (317) 338‑2345
- 250 W 96th St, Suite 520Indianapolis, IN 46260
- 8433 Harcourt Rd, Suite 100Indianapolis, IN 46260 (317) 583‑7600
Group practices
Medicare enrollment lists Kannan Natarajan as a member of this group (CMS data updated October 2, 2026).
- St Vincent Medical Group Inc736 clinicians in the group
Specialties
- Interventional Radiologyprimary
Other interventional radiologists in Carmel
Clinicians with the same Medicare primary specialty in Carmel, IN — not a recommendation.
Other clinicians in St Vincent Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1861427031 |
| 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