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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).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Jeffrey Halaas is Good. Dr. Halaas has been reviewed by 10 patients who have provided 2 comments. The rating is 4 out of 5 stars.

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

Specialties & Research

Dr. Jeffrey Halaas, MD, PHD is board certified in Medical Oncology.

  • He has special expertise in 8 areas:
  • Anemia
  • Cancer
  • Chronic B-Cell Lymphocytic Leukemia
  • Leukemia
  • Lymphoma
  • Multiple Myeloma (Cancer of Plasma Cells)
  • Myelodysplastic Syndromes
  • Myeloproliferative Disorders

Education & Awards

Dr. Halaas graduated from Cornell University, New York. He has 1 awards.

Castle Connolly Top Doctors: New York Metro Area™ (2011 - 2015)


Dr. Halaas has 6 hospital affiliations:

  • Putnam Hospital Center 
  • New York Presbyterian Hospital / Columbia 


  • Spanish
  • Mandarin
  • Russian
  • Chinese

> > > > Dr. Jeffrey Halaas, MD, PHD

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Additional Information
Dr. Jeffrey L Halaas MD and PHD is a male Oncologist , has 12 years of experience and practices in Medical Oncology.
Where does Dr. Jeffrey L. Halaas practice?
Dr. Jeffrey Halaas has 9 office locations.
Dr. Jeffrey Halaas practices Medical Oncology near Mount Kisco, NY.
Additional practice locations include: Yorktown Heights, NY and Brewster, NY.
See Mount Kisco Oncologists.