Stephen C. Machnicki
Expertise in
9
conditions

Dr. Stephen C. Machnicki

Radiology
75 North Country Road, 
Port Jefferson, NY 
Accepting New Patients
Referral may be required
Before you request
Expertise in
9
conditions
75 North Country Road, 
Port Jefferson, NY 

Overview

I am a radiologist who specializes in the interpretation of CT scans, MRI's and sonograms. I enjoy reviewing these radiology studies and then discussing the results with the referring doctors in order to ensure the best care for my patients. With special training in cancer imaging, I have been a member of the hospital's Thoracic and GI Tumor Boards for many years and work very closely with the other cancer doctors to treat our patients. Lung Cancer Screening is a program that I am intimately involved with and feel very strongly about.

Dr. Machnicki is highly rated in 9 conditions, according to our data. His clinical expertise encompasses Bronchiectasis, Emphysema, Pleurisy, and Lymphofollicular Hyperplasia.

Dr. Machnicki is board certified in American Board Of Radiology/Diagnostic Radiology. He is actively involved in clinical research, co-authoring 35 peer reviewed articles. Dr. Machnicki is currently accepting new patients.

Specialties

Radiology

Licenses

Diagnostic Radiology in NY

Board Certifications

American Board Of Radiology/Diagnostic Radiology

Fellowships

Memorial Sloan-Kettering Cancer Center

Hospital Affiliations

Long Island Jewish Medical Center
North Shore University Hospital Syosset
Long Island Jewish Valley Stream
Lenox Hill Hospital
Glen Cove Hospital
Huntington Hospital
South Shore University Hospital
Plainview Hospital
Staten Island University Hospital
Long Island Jewish Forest Hills
Peconic Bay Medical Center
Phelps Hospital
Mather Hospital
Northern Westchester Hospital
Hofstra/Northwell School Of Medicine/Nursing
North Shore University Hospital
Cancer Institute
Lenox Hill Hospital
Phelps Hospital
Nyu Langone Hospitals

Languages Spoken

English

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Northwell Health
  • INSURANCE PLAN
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D

Locations

75 North Country Road, Port Jefferson, NY 11777

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

35 Total Publications

Radiological Approach to Severe Respiratory Infections and Pulmonary Complications in Immunocompromised Patients.
Radiological Approach to Severe Respiratory Infections and Pulmonary Complications in Immunocompromised Patients.
Journal: Seminars in respiratory and critical care medicine
Published: April 07, 2026
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Frequently Asked Questions about Dr. Stephen C. Machnicki

How do I make an appointment with Dr. Stephen C. Machnicki?

You can book an appointment with Dr. Stephen C. Machnicki by calling their office at 631-473-1320. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Stephen C. Machnicki a top-rated expert for Bronchiectasis?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Stephen C. Machnicki is classified as an Advanced expert for Bronchiectasis, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Stephen C. Machnicki specialize in?

While Dr. Stephen C. Machnicki is a Radiology, they have specific expertise in Bronchiectasis, Emphysema, and Pleurisy. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Radiology.

Does Dr. Stephen C. Machnicki participate in research or clinical trials?

Yes. Dr. Stephen C. Machnicki has published 35 articles and abstracts on conditions like Bronchiectasis. You can view a list of Dr. Stephen C. Machnicki's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Stephen C. Machnicki accept my insurance?

Dr. Stephen C. Machnicki accepts most major insurance plans, including Blue Cross Blue Shield and Northwell Health. We recommend calling the office directly at 631-473-1320 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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