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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 (1)

The overall average patient rating of Dr. Ruben Mesa, Medical Oncologist, Hematologist is Excellent. Dr. Mesa has been reviewed by 7 patients who have provided 1 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.5
Promptness 4.5
Courteous Staff 4.7
Accurate Diagnosis 4.6
Bedside Manner 4.6
Spends Time with Me 4.6
Follows Up After Visit 4.1

Specialties & Research

Dr. Ruben Mesa, MD is board certified in Internal Medicine, Hematology, and Medical Oncology.

  • He has special expertise in 16 areas:
  • Acute Myeloid Leukemia
  • Anemia
  • Bone Marrow and Lymphatic Tissue Cancer (Hematologic Neoplasm)
  • Cancer
  • Chronic B-Cell Lymphocytic Leukemia
  • Chronic BCR-ABL Positive Myelogenous Leukemia
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Leukemia
  • Multiple Myeloma (Cancer of Plasma Cells)
  • Myelodysplastic Syndromes
  • Myeloproliferative Disorders
  • Pathologic Neovascularization
  • Polycythemia Vera

Education & Awards

Dr. Mesa graduated from Mayo Medical School, Rochester. He has 6 awards.

One of America's Leading Experts on:
Myeloproliferative Disorders
Fellow, American College of Physicians, 2006
Castle Connolly America's Top Doctors® (2009, 2013 - 2015)
Castle Connolly America's Top Doctors® for Cancer (2009, 2014 - 2015)
Patients' Choice Award (2010 - 2011)
Compassionate Doctor Recognition (2010)


Dr. Mesa has 5 hospital affiliations:

  • Rochester Methodist Hospital 
  • Mayo Clinic Hospital 

> > > > Dr. Ruben Mesa, MD

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Additional Information
Dr. Ruben A Mesa MD is a male Internist, has 16 years of experience and practices in Internal Medicine, Hematology & Oncology, Hematology, and Medical Oncology.
Where does Dr. Ruben A. Mesa practice?
Dr. Ruben Mesa has 1 office location.
Dr. Ruben Mesa practices Internal Medicine, Hematology & Oncology, Hematology, and Medical Oncology near Scottsdale, AZ.
See Scottsdale Internists, Scottsdale Oncologists, and Scottsdale Hematologists.