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Internist, Hematology Specialist, Oncology Specialist (cancer)
42 years of experience
Accepting new patients
Video profile
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 (4)

The overall average patient rating of Dr. David Harrison is Good. Dr. Harrison has been reviewed by 6 patients who have provided 4 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.0
Promptness 4.0
Courteous Staff 4.0
Accurate Diagnosis 4.0
Bedside Manner 3.3
Spends Time with Me 3.3
Follows Up After Visit 4.1

Specialties & Research

Dr. David Harrison, MD is board certified in Internal Medicine, Hematology, and Medical Oncology.

  • He has special expertise in 13 areas:
  • Acute Myeloid Leukemia
  • Adult T-Cell Leukemia-Lymphoma
  • Breast Cancer
  • Cancer
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Gastrointestinal Cancer
  • Hepatitis C
  • Leukemia
  • Lung Cancer
  • Lymphoma
  • Metastatic Breast Cancer

Education & Awards

Dr. Harrison graduated from Johns Hopkins University, Baltimore. He has 1 awards.

Honors, English, 1966


Dr. Harrison has 11 hospital affiliations:

  • Mercy General Hospital 
  • University of California Davis Medical Center 


  • English
  • Spanish
  • French

> > > > Dr. David Harrison, MD

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Additional Information
Dr. David T Harrison MD is a male Internist, has 42 years of experience and practices in Internal Medicine, Hematology, and Medical Oncology.
Where does Dr. David T. Harrison practice?
Dr. David Harrison has 2 office locations.
Dr. David Harrison practices Internal Medicine, Hematology, and Medical Oncology near Marysville, CA.
Additional practice locations include: Rocklin, CA.
See Marysville Internists, Marysville Hematologists, and Marysville Oncologists.