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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. Gregory Shimizu:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Gregory Shimizu is Poor. Dr. Shimizu has been reviewed by 2 patients who have provided 1 comments. The rating is 1 out of 5 stars.

Patient Ratings
Ease of Appointment 2.3
Promptness 2.3
Courteous Staff 1.0
Accurate Diagnosis 1.7
Bedside Manner 1.0
Spends Time with Me 1.0
Follows Up After Visit 1.0

Specialties & Research

Dr. Gregory Shimizu, MD is board certified in Internal Medicine.

  • He has special expertise in 5 areas:
  • Diabetes
  • Diabetes Complications
  • Heart Diseases
  • Heart Failure
  • Stroke

Education & Awards

Dr. Shimizu graduated from George Washington University. He has 4 awards.

Bridges to Excellence Recognition
Bridges to Excellence Medical Home Recognition (2013 - 2016)
Level III
NCQA Diabetes Physician Recognition Program (2013 - 2016)
NCQA Heart/Stroke Recognition Program (2013 - 2016)
NCQA Physician Practice Connections - Patient Centered Medical Home (2013 - 2016)


Dr. Shimizu has 2 hospital affiliations:

  • Kaiser Permanente Fontana Medical Center 
  • Fontana Medical Center 

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Additional Information
Dr. Gregory Hisashi Shimizu MD is a male Internist, has 23 years of experience and practices in Internal Medicine.
Where does Dr. Gregory H. Shimizu practice?
Dr. Gregory Shimizu has 1 office location.
Dr. Gregory Shimizu practices Internal Medicine near Fontana, CA.
See Fontana Internists.