Loading Complete
David J. Lomnitz

David J. Lomnitz, MD

Cardiology

Accepting New Patients
Online Booking

Highlights

Age Groups Seen

  • Adult 18-65
  • Older Adult >65

Languages

  • Spanish
  • English

Gender

Male

Hospital Affiliations

  • Nuvance Health - Norwalk Hospital

About David J. Lomnitz

Professional Statement

Dr. David Lomnitz is a cardiologist, board-certified in cardiovascular medicine by the American Board of Internal Medicine. He has specialized expertise in cardiovascular imaging and is a Fellow of the American Society of Echocardiography as well as being board-certified by the National Board of Echocardiography and the Certification Board of Nuclear Cardiology. Following his cardiology training at Weill Cornell Medical Center in 2001, he joined the medical staff at Norwalk Hospital. He has been chief of the cardiology department at Norwalk Hospital since 2018. His goal is to provide state of the art cardiovascular care without sacrificing the personal connection needed for a strong patient-physician relationship. He is bilingual in Spanish.

Expertise

Education

  • Fellowship: New York Hospital, 2001
  • Residency: University of California San Francisco, 1998
  • Internship: University of California San Francisco, 1996
  • Medical School: University of Pennsylvania, 1995

Board Certifications

  • Cardiovascular Disease: American Board of Internal Medicine

Locations

  1. Nuvance Health Medical Practice - Cardiology Norwalk (Stevens St.)
  2. Nuvance Health Medical Practice - Cardiology Wilton
  3. Nuvance Health Medical Practice - Cardiology Westport
  4. Nuvance Health Medical Practice - Cardiology Procedures Norwalk (Cross St.)
  5. Nuvance Health Medical Practice - Cardiology New Canaan
  6. Nuvance Health Medical Practice - Cardiology Darien
Need help scheduling? Call 203-855-3680

Insurance

Note: All providers do not participate with all Insurance Plans, Insurance Plan Products or Employer Groups. Please contact the doctor's office directly to confirm acceptance of your specific insurance plan.
Search plans
  • Aetna
  • Anthem BlueCross Blue Shield Connecticut
  • Centivo
  • Cigna
  • ConnectiCare
  • Consumer Health Network
  • Coventry-Aetna
  • MagnaCare
  • Medicaid Connecticut
  • Medicare Connecticut
  • Medicare Railroad
  • Multiplan Inc
  • Northwell Direct
  • Oxford Health Plans
  • Tricare Humana Military
  • United Healthcare
  • US Family Health Plan
  • Wellcare

Ratings & Reviews

4.9 out of 5

307 ratings, 10 reviews

Provider star ratings are calculated using patient responses to the provider care questions in our patient experience survey. Below you can see the provider’s star rating and the number of his or her patients who have provided feedback. Ratings depicted represent those clinicians that have at least 30 completed surveys on a rolling 12 month basis.

Doctor Explain Recently
Composite
Doctor Spent Enough Time Recently
Search reviews
    5 out of 5 stars
    Reviewed on 12/8/2025

    I appreciate his approach. He was able to address my concerns regarding taking a statin. We're still working through all the tests, but I have high confidence in his expertise.

    5 out of 5 stars
    Reviewed on 12/2/2025

    Very thorough and precise as to what direction we need to take moving forward to ensure proper care

    4 out of 5 stars
    Reviewed on 12/1/2025

    Dr. Lomnitz always looks at my updated chart/ results of any procedures and tests. I feel reluctant to distract him while he's reading. He gives me a summary word or two.... Good ! Would love more explanations from him / knowledgeable guy.

    5 out of 5 stars
    Reviewed on 7/23/2025

    No

    5 out of 5 stars
    Reviewed on 6/19/2025

    An amazing cardiologist doctor!!! Always available when I need an appointment to see him!!! Thank you so much.

    5 out of 5 stars
    Reviewed on 6/11/2025

    An excellent Doctor.

    5 out of 5 stars
    Reviewed on 6/2/2025

    He is a great doctor

    5 out of 5 stars
    Reviewed on 3/29/2025

    Always professional. Explains his concerns. Easy to talk to.

    5 out of 5 stars
    Reviewed on 3/15/2025

    He was thorough & knowledgeable.

    5 out of 5 stars
    Reviewed on 3/5/2025

    Wonderful dr. over the years. Good man.