DR. GANESH C NATARAJAN M.D.
NPI 1073506317
Internal Medicine - Pulmonary Disease in Brookfield, CT

Q: What is Ganesh Natarajan's NPI number?

The NPI number for Ganesh Natarajan is 1073506317. It was assigned to this individual provider in the NPPES registry on August 23, 2005.

Q: What is Ganesh Natarajan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Ganesh Natarajan was last updated on March 14, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 23, 2005PECOS EnrolledAccepts Medicare Assignment

94.24/100

CMS Quality Rating

940 FEDERAL RD, BROOKFIELD, CT 06804(203) 740-2881(203) 740-8653 Get Directions Write a Review

NPPES record last updated: March 14, 2014. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Ganesh C Natarajan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GANESH C NATARAJAN M.D. (NPI 1073506317) is an individual pulmonary disease provider in Brookfield, Connecticut, licensed in Connecticut (039487) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (1995).

NPPES Registry Identity

NPI1073506317

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameDR. GANESH C NATARAJANCredential: M.D.

Location Address940 FEDERAL RDBrookfield, CT 06804-1144

Mailing Address940 Federal RdBrookfield, CT 06804-1144 · (203) 740-2881 · Fax (203) 740-8653

Phone(203) 740-2881

Fax(203) 740-8653

Sole ProprietorYes

Medical School CMSClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv UniversityGraduated 1995

Enumeration DateAugust 23, 2005

Last NPPES UpdateMarch 14, 2014

✔ NPI 1073506317 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in CT · 039487

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 039487 (CT)

Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License 039487 (CT)

940 FEDERAL RD, Brookfield, CT 06804

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Other Identifiers 3

Medicare UPINH12806CT

Medicare ID-Type Unspecified290000392CT

Medicaid001394874CT

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ganesh C Natarajan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1557340890

PECOS Enrollment IDI20040719001247

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Ganesh Natarajan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Nuvance Health Medical Practice Ct, Inc.

6.1 mi

Internal Medicine

24 HOSPITAL AVE
Danbury, CT 06810

Reassigned Medicare billing, Connecticut enrollment
818 clinicians in this Medicare group

NPI 1407898117 (203) 739-7742

Nuvance Health Medical Practice PC

30 mi

Internal Medicine

45 READE PLACE
Poughkeepsie, NY 12601

Reassigned Medicare billing, Connecticut enrollment
88 clinicians in this Medicare group

NPI 1437358033 (845) 475-9661

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

905 services144 patients

Test to measure the level of nitric oxide gas 95012

A test to measure the level of nitric oxide gas helps assess inflammation in the lungs, often linked with asthma. You'll breathe into a device, and it'll provide a reading of nitric oxide levels. This helps monitor and manage respiratory conditions.

477 services95 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

413 services82 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

274 services70 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

37 services31 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

25 services11 patients

Test to determine lung volumes using gas dilution or washout 94727

This test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.

22 services20 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

22 services20 patients

Test for exercise-induced lung stress 94618

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

18 services17 patients

Test to measure oxygen level in blood using ear or finger device continuously overnight 94762

This procedure involves using a small device, placed on your ear or finger, to continuously monitor your blood oxygen level overnight. It's painless, non-invasive, and helps assess your body's oxygen supply during sleep.

16 services14 patients

Evaluation of use of breathing device 94664

The evaluation of a breathing device involves checking how effectively you're using it to manage your respiratory condition. It assesses the device's fit, your comfort, and your technique to ensure optimal results.

15 services15 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06804 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$138.84 typical visit price

range $60.82 – $183.10

Typical copayment $34.71 (range $15.20 – $45.77)

Most-billed visit code 99204

Established Patient

$106.68 typical visit price

range $19.76 – $149.26

Typical copayment $26.67 (range $4.94 – $37.31)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.24/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

78.26

Promoting Interoperability

100

Improvement Activities

Reported Quality Measures

Adult Sinusitis: Antibiotic Prescribed for Acute Viral Sinusitis (Overuse)

Lower rates are better for this measure.

37%191 patients3/55-star benchmark: 100%

Advance Care Plan

0%292 patients1/55-star benchmark: 100%

Closing the Referral Loop: Receipt of Specialist Report

19%37 patients1/55-star benchmark: 87%

Colorectal Cancer Screening

3%270 patients1/55-star benchmark: 88%

Documentation of Current Medications in the Medical Record

83%2,653 patients4/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

6%447 patients1/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

0%2,434 patients1/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients screened: 39% · 414 patients

37%414 patients

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

56%25 patients2/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 2% · 255 patients

Patients totalRate: 9% · 265 patients

9%265 patients4/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 24

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

8 suppliers94 claims94 services$37.53 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

8 suppliers84 claims84 services$84.95 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

5 suppliers82 claims243 services$31.05 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

5 suppliers31 claims172 services$16.37 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

7 suppliers37 claims212 services$15.31 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

9 suppliers74 claims75 services$54.67 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

11 suppliers89 claims89 services$17.75 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

7 suppliers65 claims65 services$11.78 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

11 suppliers139 claims793 services$1.95 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

4 suppliers11 claims11 services$6.72 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

8 suppliers73 claims73 services$10.57 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

3 suppliers35 claims35 services$17.09 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

3 suppliers11 claims11 services$907.11 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470

DME-Other DME · category DE001N

2 suppliers12 claims12 services$73.09 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

4 suppliers13 claims13 services$138.94 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

3 suppliers17 claims17 services$12.01 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

2 suppliers21 claims22 services$7.73 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

8 suppliers127 claims131 services$37.21 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

9 suppliers173 claims173 services$75.23 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

4 suppliers42 claims42 services$35.50 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

6 suppliers24 claims5,173 services$0.03 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

6 suppliers15 claims2,470 services$0.10 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier30 claims30 services$32.91 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

7 suppliers32 claims32 services$25.25 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CANDLEWOOD FAMILY DENTAL LLC

Clinic/Center (Dental)

940 FEDERAL RD
BROOKFIELD, CT 06804

Western Connecticut Planning Region (203) 775-5533

DR. MARK S COHEN D.D.S.

Dentist (General Practice)

940 FEDERAL RD
BROOKFIELD, CT 06804

Western Connecticut Planning Region (203) 775-5533

DR. CHRISTINE ROSANNE WALDRON DDS

Dentist

940 FEDERAL RD, SUITE 4
BROOKFIELD, CT 06804

Western Connecticut Planning Region (203) 775-5533

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ganesh Natarajan's NPI number?

The NPI number for Ganesh Natarajan is 1073506317. It was assigned to this individual provider in the NPPES registry on August 23, 2005.

Where is Ganesh Natarajan located?

Ganesh Natarajan practices at 940 Federal Rd, Brookfield, CT 06804. The listed phone number is (203) 740-2881.

What is Ganesh Natarajan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Ganesh Natarajan enrolled in Medicare?

Yes. Ganesh Natarajan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Ganesh Natarajan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ganesh Natarajan reassigns Medicare benefits to 2 organizations: Nuvance Health Medical Practice Ct, Inc. (Danbury, CT) and Nuvance Health Medical Practice PC (Poughkeepsie, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ganesh Natarajan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ganesh Natarajan accept?

Health plans from Anthem Blue Cross and Blue Shield list Ganesh Natarajan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ganesh Natarajan was last updated on March 14, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.