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Pulmonary Disease

Ganesh C. Natarajan, MD

Works at hospitals in Danbury, CT · Connecticut

Summary

Dr. Ganesh C. Natarajan, MD is a pulmonologist at 21 Elm St, New Milford, CT 06776. Phone: (860) 210-5390. Accepts Medicare assignment. In 2024, Ganesh C. Natarajan had 166 Original Medicare patients and 2,268 services. NPI 1073506317. 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.

  • Specialty: Pulmonologist (Medicare lists Pulmonary Disease)
  • Address: 21 Elm St, New Milford, CT 06776 · Directions (1 more location)
  • Phone: (860) 210‑5390
  • Medicare: Accepts Medicare assignment
  • Hospital: Danbury Hospital
  • Group practice: Nuvance Health Medical Practice Ct Inc
  • Medical school: Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University · graduated 1995 (31 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Ganesh C. 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 Ganesh C. Natarajan accept Medicare assignment?
Yes. Medicare's clinician data says Ganesh C. 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 Ganesh C. Natarajan see?
In 2024, CMS data shows 166 Original Medicare patients and 2,268 services for Ganesh C. Natarajan. This counts Original Medicare only and measures volume, not quality.
What is Ganesh C. Natarajan's NPI number?
1073506317. 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 Ganesh C. 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 patients166
Services billed to Medicare2,268
Different services or procedures17
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)905 services
  2. Test to measure the level of nitric oxide gas (95012)477 services
  3. Test to measure expiratory airflow and volume changes before and after medication administration (94060)413 services
  4. Test to measure expiratory airflow and volume (94010)274 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)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%
  • Asthma69%
  • Arthritis51%
  • COPD49%
  • Ischemic heart disease42%

Hospitals where Ganesh C. Natarajan works

Medicare's Facility Affiliation Data lists Ganesh C. 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.

  • Danbury HospitalDanbury, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070033

Practice locations

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

Group practices

Medicare enrollment lists Ganesh C. Natarajan as a member of this group (CMS data updated October 2, 2026).

  • Nuvance Health Medical Practice Ct Inc747 clinicians in the group

Specialties

Find other Pulmonary Disease doctors in Connecticut →

Other pulmonologists in Connecticut

Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.

All pulmonologists in Connecticut →

Other clinicians in Nuvance Health Medical Practice Ct Inc

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

Clinician information

CredentialMD
Medical schoolClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1073506317
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