Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Interventional Cardiology

Gautam K. Visveswaran, MD

Works at hospitals in Livingston, NJ · Newark, NJ · Rahway, NJ … · New Jersey

Summary

Dr. Gautam K. Visveswaran, MD is an interventional cardiologist at 201 Lyons Ave, Newark, NJ 07112. Accepts Medicare assignment. In 2024, Gautam K. Visveswaran had 158 Original Medicare patients and 562 services. NPI 1528293354. 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 Gautam K. Visveswaran, 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 Gautam K. Visveswaran accept Medicare assignment?
Yes. Medicare's clinician data says Gautam K. Visveswaran 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 Gautam K. Visveswaran see?
In 2024, CMS data shows 158 Original Medicare patients and 562 services for Gautam K. Visveswaran. This counts Original Medicare only and measures volume, not quality.
What is Gautam K. Visveswaran's NPI number?
1528293354. 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 Gautam K. Visveswaran, 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 patients158
Services billed to Medicare562
Different services or procedures46
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)107 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)91 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)83 services
  4. Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)30 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)30 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 disease68%
  • Diabetes61%
  • Heart failure56%
  • Arthritis41%

Hospitals where Gautam K. Visveswaran works

Medicare's Facility Affiliation Data lists Gautam K. Visveswaran 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 Gautam K. Visveswaran is enrolled with Medicare (CMS data updated October 2, 2026).

  • 201 Lyons AveNewark, NJ 07112
  • 94 Old Short Hills RdLivingston, NJ 07039

Group practices

Medicare enrollment lists Gautam K. Visveswaran as a member of this group (CMS data updated October 2, 2026).

  • Barnabas Health Medical Group PC1,070 clinicians in the group

Specialties

Find other Interventional Cardiology doctors in New Jersey →

Other interventional cardiologists in Newark

Clinicians with the same Medicare primary specialty in Newark, NJ — not a recommendation.

All interventional cardiologists in Newark →

Other clinicians in Barnabas Health Medical Group PC

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

Clinician information

CredentialMD
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1528293354
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