Quick answers
- Does Malarvizhi Natarajan accept Medicare assignment?
- Yes. Medicare's clinician data says Malarvizhi 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 Malarvizhi Natarajan see?
- In 2024, CMS data shows 682 Original Medicare patients and 6,118 services for Malarvizhi Natarajan. This counts Original Medicare only and measures volume, not quality.
- What is Malarvizhi Natarajan's NPI number?
- 1306022868. 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 Malarvizhi 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 | 682 |
|---|---|
| Services billed to Medicare | 6,118 |
| Different services or procedures | 22 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)4,200 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)696 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)489 services
- Dxa bone density measurement of hip, pelvis, spine (77080)220 services
- Aspiration and/or injection of fluid from large joint (20610)84 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 pressure73%
- High cholesterol73%
- Arthritis69%
- Osteoporosis30%
- Chronic kidney disease29%
- Anxiety27%
Hospitals where Malarvizhi Natarajan works
Medicare's Facility Affiliation Data lists Malarvizhi 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.
- Franciscan Health Rensselaer, IncRensselaer, IN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 151324
- Indiana University Health Arnett HospitalLafayette, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150173
- Indiana University Health Frankfort IncFrankfort, IN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 151316
- Indiana University Health White Memorial HospitalMonticello, IN · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 151312
- Memorial HospitalLogansport, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150072
Practice locations
Addresses where Malarvizhi Natarajan is enrolled with Medicare (CMS data updated October 2, 2026).
- 1701 N Senate BlvdIndianapolis, IN 46202 (888) 484‑3258
- 2600 Ferry StLafayette, IN 47904 (765) 448‑8000
- 2600 Greenbush StLafayette, IN 47904 (765) 448‑8000
Group practices
Medicare enrollment lists Malarvizhi Natarajan as a member of these groups (CMS data updated October 2, 2026).
- IU Health Medical Group LLC4,462 clinicians in the group
- Arnett Clinic LLC390 clinicians in the group
Specialties
- Rheumatologyprimary
- Internal Medicinealso
Other rheumatologists in Indianapolis
Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.
Other clinicians in IU Health Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1994 (32 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1306022868 |
| 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