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Infectious Disease

Usharani Natarajan, MD

Works at hospitals in Morristown, NJ · Summit, NJ · New Jersey

Summary

Dr. Usharani Natarajan, MD is an infectious disease doctor at 25 Lindsley Dr, Suite 110, Morristown, NJ 07960. Phone: (908) 442-7011. Accepts Medicare assignment. In 2024, Usharani Natarajan had 128 Original Medicare patients and 737 services. NPI 1487620456. 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 Usharani Natarajan, 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 Usharani Natarajan accept Medicare assignment?
Yes. Medicare's clinician data says Usharani 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 Usharani Natarajan see?
In 2024, CMS data shows 128 Original Medicare patients and 737 services for Usharani Natarajan. This counts Original Medicare only and measures volume, not quality.
What is Usharani Natarajan's NPI number?
1487620456. 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 Usharani 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 patients128
Services billed to Medicare737
Different services or procedures8
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)512 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)109 services
  3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)42 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)28 services
  5. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)24 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%
  • Arthritis60%
  • Diabetes52%
  • Chronic kidney disease52%
  • Heart failure45%

Hospitals where Usharani Natarajan works

Medicare's Facility Affiliation Data lists Usharani 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.

  • Morristown Medical CenterMorristown, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310015
  • Overlook Medical CenterSummit, NJ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 310051

Practice locations

Addresses where Usharani Natarajan is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Infectious Disease doctors in New Jersey →

Other infectious disease doctors in Morristown

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

All infectious disease doctors in Morristown →

Clinician information

CredentialMD
Graduation year1991 (35 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1487620456
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