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Cardiovascular Disease (Cardiology)

Niti Aggarwal, MD

Works at hospitals in Nashville, TN · Albert Lea, MN · Fairmont, MN … · Tennessee, Minnesota

Summary

Dr. Niti Aggarwal, MD is a cardiologist at 1025 Marsh St, Mankato, MN 56001. Phone: (507) 625-4031. Accepts Medicare assignment. In 2024, Niti Aggarwal had 675 Original Medicare patients and 3,113 services. NPI 1598962474. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Niti Aggarwal, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Niti Aggarwal accept Medicare assignment?
Yes. Medicare's clinician data says Niti Aggarwal 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 Niti Aggarwal see?
In 2024, CMS data shows 675 Original Medicare patients and 3,113 services for Niti Aggarwal. This counts Original Medicare only and measures volume, not quality.
What is Niti Aggarwal's NPI number?
1598962474. 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 Niti Aggarwal, 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 patients675
Services billed to Medicare3,113
Different services or procedures37
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Injection, gadobutrol, 0.1 ml (A9585)2,000 services
  2. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)428 services
  3. Ultrasound of heart, follow-up (93308)77 services
  4. Ultrasound of heart with color-depicted blood flow, rate and valve function (93325)67 services
  5. Ultrasound of heart blood flow, valves and chambers, follow-up (93321)52 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%
  • Chronic kidney disease50%
  • Heart failure50%
  • Ischemic heart disease48%
  • Arthritis39%

Hospitals where Niti Aggarwal works

Medicare's Facility Affiliation Data lists Niti Aggarwal 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.

Practice locations

Addresses where Niti Aggarwal is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Niti Aggarwal as a member of these groups (CMS data updated October 2, 2026).

  • Mayo Clinic4,956 clinicians in the group
  • Mayo Clinic Health System-Southwest Minnesota Region661 clinicians in the group
  • Saint Thomas Medical Partners590 clinicians in the group
  • Mayo Clinic Health System-Fairmont155 clinicians in the group
  • Mayo Clinic Health System-St James76 clinicians in the group
  • Williamson Professional Practice15 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in Minnesota →

Other cardiologists in Mankato

Clinicians with the same Medicare primary specialty in Mankato, MN — not a recommendation.

All cardiologists in Mankato →

Other clinicians in Mayo Clinic

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1598962474
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians