Summary

Dr. Katherine Hajjar has practiced hematology and pediatrics for 48 years and is affiliated with Memorial Sloan Kettering Cancer Center, NewYork-Presbyterian Columbia University Irving Medical Center, and NewYork-Presbyterian Alexandra Cohen Hospital for Women and Newborns. She completed her residency at Children's Hospital and earned her medical degree from Johns Hopkins University School of Medicine. She sees patients in New York, NY. Patients on Vitals rate Dr. Hajjar 5 out of 5.

Overview based on verified provider data

Quick Facts

  • 5
  • 48 years of experience
  • Childrens Hospital
  • 2 specialties
  • 7 areas of expertise
  • 4 hospital affiliations
  • 3 office locations
  • Female

Office Locations

Dr. Katherine A Hajjar has 3 locations

Dr. Katherine A Hajjar

1300 York Avenue #A108New York, NY 10065

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Dr. Katherine A Hajjar, MDJeffrey Zwicker, MDDavid L Diuguid, MDDr. Barbara Ting-Wen Ma, MD
HematologyHematologyHematologyHematology
Accepts New Patients Accepts New Patients
5 
0 
4.1 
0 
48 Years of Experience 28 Years of Experience 47 Years of Experience 11 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English, Spanish Speaks English
New York , NYNew York , NYNew York , NYNew York , NY
Med School: Johns Hopkins University School Of Medicine Med School: Harvard Medical School Med School: Weill Cornell Medical College Med School: New York Medical College
Current Profile
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Insurance Plans Accepted by Dr. Katherine A Hajjar

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

Medical Specialties

Dr. Katherine A Hajjar has the following 2 specialties

Specialty Expertise

Dr. Katherine A Hajjar has the following 7 areas of expertise

  • Acute Myeloid Leukemia
  • Acute Promyelocytic Leukemia
  • Cancer
  • Chronic Myeloid Leukemia
  • Leukemia
  • Pediatrics
  • Vascular Disease

Certifications, License, & Education

48 Years Experience

Dr. Katherine A Hajjar holds an inactive medical license in the state of New York.

Medical License

Medical Doctor with an inactive medical license in the state of New York that expired in 2025.

Education & Training

Residency

Completed their residency at Childrens Hospital.

Medical School

Graduated from Johns Hopkins University School Of Medicine in 1978.

NPI Number

Dr. Hajjar's NPI number is 1740377837.

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Frequently Asked Questions

Where is Dr. Katherine Hajjar's office located?
Dr. Katherine Hajjar's office is located at 1300 York Avenue #A108, New York, NY, 10065.
Which hospitals is Dr. Katherine Hajjar affiliated with?
Dr. Katherine Hajjar is affiliated with Memorial Sloan Kettering Cancer Center, Newyork Presbyterian Columbia University Irving Medical Center, Newyork Presbyterian Alexandra Cohen Hospital For Women And Newborns, and Newyork Presbyterian Columbia University Irving Medical Center.
Does Dr. Katherine Hajjar accept my insurance?
You can see the insurance plans that Dr. Katherine Hajjar accepts on their Vitals profile.
Does Dr. Katherine Hajjar accept virtual/telehealth appointments?
Dr. Katherine Hajjar has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Is Dr. Katherine Hajjar accepting new patients?
Dr. Katherine Hajjar has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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