Summary

Dr. Jassey graduated from the New York Institute of Technology College of Osteopathic Medicine in 2004. He works in Roslyn, NY and 3 other locations and specializes in Adolescent Medicine and Pediatrics. Dr. Jassey is affiliated with Mount Sinai South Nassau and SYOSSET HOSPITAL.

Quick Facts

  • accepting new patients
  • 4.1
  • 22 years of experience
  • speaks English, Spanish
  • Winthrop University Hospital
  • 10 written reviews
  • 2 specialties
  • 6 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Jonathan Brett Jassey has 4 locations

Concierge Pediatrics

1520 Old Northern BlvdRoslyn, NY 11576
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 3:00 pm
Sat9:00 am - 12:00 pm
SunClosed

Mount Sinai South Nassau

1 Healthy WayOceanside, NY 11572

Syosset Hospital

221 Jericho TpkeSyosset, NY 11791

Concierge Pediatrics

7952 Jericho TpkeWoodbury, NY 11797
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 3:00 pm
Sat9:00 am - 12:00 pm
SunClosed

Compare with Similar Doctors

Dr. Jonathan Brett Jassey, DO
New York Comprehensive Medical Care
Dr. Alwyn T Cohall, MD
Dr. Gail D Gutman, MD
Dr. Jonathan Brett Jassey, DONew York Comprehensive Medical CareDr. Alwyn T Cohall, MDDr. Gail D Gutman, MD
Adolescent MedicineAdolescent MedicineAdolescent MedicineAdolescent Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
4.1 
4.5 
22 Years of Experience 46 Years of Experience 8 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks English, Spanish
Roslyn , NYSmithtown , NYNew York , NYNew York , NY
Med School: New York Institute Of Technology College Of Osteopathic Medicine Med School: Rutgers New Jersey Medical School Med School: Sackler School Of Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Jonathan Brett Jassey

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Jonathan Brett Jassey has the following 2 specialties

Specialty Expertise

Dr. Jonathan Brett Jassey has the following 6 areas of expertise

  • Acne
  • Birth Control
  • Eating Disorders
  • Pediatrics
  • Sexually Transmitted Diseases
  • Substance Abuse

Certifications, License, & Education

22 Years Experience

Dr. Jonathan Brett Jassey holds an active medical license in the state of New York.

Medical License

Doctor Of Osteopathy with an active medical license in the state of New York that expires in 2026.

Education & Training

Residency

Completed their residency at Winthrop University Hospital.

Medical School

Graduated from New York Institute Of Technology College Of Osteopathic Medicine in 2004.

NPI Number

Dr. Jassey's NPI number is 1689887705.

Similar doctors

Frequently Asked Questions

Is Dr. Jonathan Jassey accepting new patients?
Dr. Jonathan Jassey is accepting new patients on Vitals. View Dr. Jonathan Jassey's profile on Vitals to make an appointment.
Does Dr. Jonathan Jassey accept my insurance?
You can see the insurance plans that Dr. Jonathan Jassey accepts on their Vitals profile.
Which hospitals is Dr. Jonathan Jassey affiliated with?
Dr. Jonathan Jassey is affiliated with Mount Sinai South Nassau and SYOSSET HOSPITAL.
Where is Dr. Jonathan Jassey's office located?
Dr. Jonathan Jassey's office is located at 1520 Old Northern Blvd, Roslyn, NY, 11576.
Does Dr. Jonathan Jassey accept virtual/telehealth appointments?
Dr. Jonathan Jassey has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.