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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).

Learn more about Dr. Patrick Johnston:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (0)

The overall average patient rating of Dr. Patrick Johnston is Excellent. Dr. Johnston has been reviewed by 4 patients who have provided 0 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
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. Patrick Johnston, MD, PHD is board certified in Hematology.

  • He has special expertise in 14 areas:
  • Acute Myeloid Leukemia
  • Adult T-Cell Leukemia-Lymphoma
  • Bone Marrow and Lymphatic Tissue Cancer (Hematologic Neoplasm)
  • Chronic B-Cell Lymphocytic Leukemia
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Diffuse Large B-Cell Lymphoma
  • Hepatitis C
  • Hodgkin Disease
  • Leukemia
  • Lymphoma
  • Melanoma
  • Non-Hodgkin Lymphoma

Education & Awards

Dr. Johnston graduated from University of Alabama at Birmingham.


Dr. Johnston has 4 hospital affiliations:

  • St Marys Hospital - Rochester 
  • Rochester Methodist Hospital 

> > > > Dr. Patrick Johnston, MD, PHD

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Additional Information
Dr. Patrick B Johnston MD and PHD is a male Internist, has 16 years of experience and practices in Internal Medicine and Hematology.
Where does Dr. Patrick B. Johnston practice?
Dr. Patrick Johnston has 1 office location.
Dr. Patrick Johnston practices Internal Medicine and Hematology near Rochester, MN.
See Rochester Internists and Rochester Hematologists.