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Edit this profileAt a glance
- 24 Hospital Ave, Danbury, CT 06810
About Dr. Chronakos
John Chronakos, M.D. practices pulmonary disease in Danbury, CT. John is a 1998 graduate of New York University School of Medicine. John is also listed as specializing in critical care medicine and sleep medicine. Medicare claims data shows John provided 1,446 services to 1,104 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, critical care, first 30-74 minutes, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes. The provider's National Provider Identifier (NPI) is 1609801273.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (203) 739-7070
- Email not available
Practice Locations
24 HOSPITAL AVE
Danbury, CT 06810
Conditions Commonly Evaluated or Treated
Within Pulmonary Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Airway disorders
Blood vessel disorders
Critical care
Diagnostic findings
Environmental lung diseases
Genetic conditions
Infections
- Community-acquired pneumonia
- Fungal lung infection
- Legionnaires' Disease
- Lung abscess
- NTM lung infection
- Severe Pneumonia
- Tuberculosis
- Valley fever
- Walking Pneumonia in Children
- Whooping Cough
Inflammatory conditions
Lung growths
Occupational & environmental
Pleural disorders
Post-infection conditions
Sleep disorders
- Excessive daytime sleepiness
- Shallow Breathing In Sleep
- Snoring
- Upper Airway Resistance Syndrome
- Waking Up Gasping Or Choking
Structural lung conditions
Symptoms
- Blue Baby Syndrome
- Chest congestion
- Coughing up blood
- Low oxygen levels
- Rapid Breathing
- Severe asthma attack
- Wheezing
Procedures & services
Most searched procedures
Airway care
Airway management
Biopsies
Biopsies & diagnostics
Breathing tests
- 6-minute walk test
- Asthma challenge test
- Cardiopulmonary Exercise Testing (CPET)
- Exhaled nitric oxide test
Cancer diagnostic procedures
Consultations
Counseling & prevention
Critical care
Diagnostic procedures
Drainage care
Imaging
Interventional procedures
Lab tests
Lung tests
Medications
Monitoring
Pleural procedures
- Chest tube insertion
- Draining lung fluid
- Medical thoracoscopy
- Permanent chest drain insertion
- Pleural sealing procedure
Procedures
Rehabilitation
Screening
Sleep equipment
Sleep medicine
Sleep treatments
Specialist evaluations
Specialized testing
Treatments
Procedures Most Often Billed to Medicare
1,446 services · 1,104 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration of fluid from chest cavity using imaging guidance | Procedure | 32555 |
15 | Less often than most peers in Pulmonary Disease |
| Test to examine how well the lungs exchange gases | Treatment | 94729 |
29 | Less often than most peers in Pulmonary Disease |
| Test to determine lung volumes using sensors | Treatment | 94726 |
29 | Less often than most peers in Pulmonary Disease |
| Evaluation of use of breathing device | Treatment | 94664 |
29 | As often as other peers in Pulmonary Disease |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
27 | Less often than most peers in Pulmonary Disease |
| Sleep study including heart rate, breathing, and sleep time | Treatment | 95800 |
24 | Less often than most peers in Pulmonary Disease |
| Test for exercise-induced lung stress | Treatment | 94618 |
12 | Less often than most peers in Pulmonary Disease |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
435 | More often than most peers in Pulmonary Disease |
| Critical care, first 30-74 minutes | Office visit | 99291 |
198 | More often than most peers in Pulmonary Disease |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
149 | More often than most peers in Pulmonary Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other lung specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other lung specialists in Danbury 7
Same specialty, same city.
More connections — 22 related providers in 3 groups
Trained at New York University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at New York University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration of fluid from chest cavity using imaging guidance 6
Providers in CT who bill this service to Medicare most often.
Common questions
What does John Chronakos specialize in?
John Chronakos is a lung specialist in Danbury, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Pulmonary Disease”.
NPI registry
Where is John Chronakos located?
John Chronakos is listed at 24 Hospital Ave, Danbury, CT 06810. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is John Chronakos's phone number?
The number on file is (203) 739-7070. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for John Chronakos?
John Chronakos's National Provider Identifier is 1609801273. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did John Chronakos train?
John Chronakos attended New York University School of Medicine, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How much experience does John Chronakos have?
John Chronakos has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What does John Chronakos do most often?
According to Medicare billing data, John Chronakos performs procedures including aspiration of fluid from chest cavity using imaging guidance; provides treatments such as test to examine how well the lungs exchange gases and test to determine lung volumes using sensors, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is John Chronakos's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John Chronakos. If this is you, claiming it is free.
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