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License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Mark Jagust:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (49)

The overall average patient rating of Dr. Mark Jagust is Good. Dr. Jagust has been reviewed by 85 patients who have provided 49 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.4
Promptness 4.0
Courteous Staff 4.5
Accurate Diagnosis 4.4
Bedside Manner 4.3
Spends Time with Me 4.4
Follows Up After Visit 4.3

Specialties & Research

Dr. Mark Jagust, MD is board certified in Family Medicine.

Education & Awards

Dr. Jagust graduated from St. George's University, Bay Shore.


Dr. Jagust has 8 hospital affiliations:

  • Stony Brook University Hospital 
  • St Charles Hospital 


  • Spanish

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Additional Information
Dr. Mark Julian Jagust MD is a male Family Practitioner, has 26 years of experience and practices in Family Medicine.
Where does Dr. Mark J. Jagust practice?
Dr. Mark Jagust has 1 office location.
Dr. Mark Jagust practices Family Medicine near Lake Grove, NY.
See Lake Grove Family Physicians.