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Family Practitioner, Primary Care Doctor
37 years of experience
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. Gregorio Calleja:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (4)

The overall average patient rating of Dr. Gregorio Calleja is Excellent. Dr. Calleja has been reviewed by 13 patients who have provided 4 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.7
Promptness 3.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 4.8

Specialties & Research

Dr. Gregorio Calleja, MD is board certified in Family Medicine.

Education & Awards

Dr. Calleja graduated from Universidad Complutense De Madrid. He has 2 awards.

Patients' Choice Award (2011 - 2015)
Compassionate Doctor Recognition (2011 - 2014)


Dr. Calleja has 4 hospital affiliations:

  • St Catherine Of Siena Medical Center 
  • St John's Episcopal Hospital 


  • Spanish

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Additional Information
Dr. Gregorio Alejandro Calleja MD is a male Family Practitioner, has 37 years of experience and practices in Family Medicine.
Where does Dr. Gregorio A. Calleja practice?
Dr. Gregorio Calleja has 1 office location.
Dr. Gregorio Calleja practices Family Medicine near Rockaway Park, NY.
See Rockaway Park Family Physicians.