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Dr. Jonathan Deassis, MD
Emergency Medicine* Age 33
Dr. Jonathan Deassis, MD
5.0 (1 Ratings)
Dr. Jonathan Deassis, MD is an Emergency Medicine Specialist in Stony Brook, NY.
Dr. Jonathan Deassis, MD
5.0 (1 Ratings)

Dr. Jonathan Deassis, MD

Emergency Medicine* Age 33
Stony Brook, NY
Accepting new patients
Dr. Jonathan Deassis, MD is an Emergency Medicine Specialist in Stony Brook, NY.

About Dr. Jonathan Deassis, MD

Dr. Jonathan Deassis, MD is an Emergency Medicine Specialist in Stony Brook, NY. Dr. Deassis has experience treating conditions like Alcohol Withdrawal among other conditions at varying frequencies. Dr. Deassis's office accepts new patients. Dr. Deassis is board certified in Emergency Medicine and accepts multiple insurance plans.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Low Wait Times

Patients are usually seen in 10 minutes or less.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

Experience Check

Enter a condition or procedure
Alcohol Withdrawal
Broken Nose
Facial Fracture
Alcohol Withdrawal
Broken Nose
Facial Fracture
Shortness of Breath
Heart Attack (Acute Myocardial Infarction)
Chest Pain
Respiratory Failure
Dehydration
Stroke
  • View other providers who treat Stroke
Pleural Effusion
Anaphylactic Fish Allergy
Anaphylactic Food Allergies
Anaphylactic Tree Nut Allergy
Anaphylaxis
Burn Injuries
Cerebral Embolism
Collapsed Lung (Pneumothorax)
Diabetic Ketoacidosis
Drug Withdrawal
Embolism
  • View other providers who treat Embolism
Heart Attack (NSTEMI)
Heart Attack (STEMI)
Humerus Fracture
Impairments of Consciousness
Maxillary and Malar Fractures
Opioid Withdrawal
Orbital Fracture
Priapism
  • View other providers who treat Priapism
Rhabdomyolysis
Ventricular Fibrillation
Ventricular Tachycardia (VT)
Thoracentesis

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • First Health (Coventry Health Care) PPO
  • MagnaCare PPO
  • Liberty Mutual Insurance Company
  • National EPO
  • Oscar Circle EPO
  • Curative EPO
    Curative PPO
    Curative PPO Plus
  • Freedom

Where Dr. Jonathan Deassis, MD Sees Patients

  1. 1 Stony Brook University Hospital
    101 Nicolls Rd, Stony Brook, NY 11794
  2. 2 Jay R Begun MD PC
    1 Gustave L Levy Pl Fl 12, New York, NY 10029
  3. 3 St Lukes Hospital
    1111 Amsterdam Ave, New York, NY 10025

What Patients Say

Likelihood to recommend Dr. Deassis
5.0
Based on 1 Reviews
5 Stars (1)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Feb 14, 2025
Visited Dr. Deassis at the Mount Sinai Morningside location. He was exemplary and incredibly personable even given a complex case with even more complex insurance issues. Thanks again!
Fantastic Provider — Feb 14, 2025
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Meet Dr. Jonathan Deassis, MD

Specialties*
Emergency Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Deassis communicate via email?
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Does Dr. Deassis specialize in working with children or adolescents?
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Does Dr. Deassis specialize in couples therapy?
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FAQs About Dr. Deassis's Practice

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Jonathan Deassis, MD. To arrange an appointment, call the number on Dr. Deassis's profile.

Dr. Jonathan Deassis, MD is affiliated with Mount Sinai West.

Yes, Dr. Jonathan Deassis, MD holds board certification in Emergency Medicine.

Training & Medical Education
Board Certifications
  • Emergency Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Hospitals Where Dr. Jonathan Deassis, MD Practices

  • Mount Sinai West

    1000 10th Ave, New York, NY

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