Browse Health
Family Practitioner, Primary Care Doctor
36 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:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (21)

The overall average patient rating of Dr. Gregorio Calleja is Excellent. Dr. Calleja has been reviewed by 92 patients who have provided 21 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.6
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 - 2014)
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 36 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.