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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. Marshall Block:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (5)

The overall average patient rating of Dr. Marshall Block is Average. Dr. Block has been reviewed by 10 patients who have provided 5 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 3.2
Promptness 3.7
Courteous Staff 3.7
Accurate Diagnosis 3.0
Bedside Manner 2.8
Spends Time with Me 2.8
Follows Up After Visit 3.1

Specialties & Research

Dr. Marshall Block, MD is board certified in Internal Medicine.

  • He has special expertise in 9 areas:
  • Diabetes
  • Diabetes Mellitus
  • Diabetic Ketoacidosis
  • Hypoglycemia
  • Hypothyroidism
  • Metabolic Bone Diseases
  • Pancreatic Tumor (Islet Cell Adenoma)
  • Pituitary Diseases
  • Thyroid Diseases

Education & Awards

Dr. Block graduated from New York Medical College, Valhalla. He has 1 awards.

One of America's Leading Experts on:
Diabetes Mellitus


Dr. Block has 3 hospital affiliations:

  • Banner Good Samaritan Regional Medical Center 
  • Scottsdale Healthcare-Shea 
  • St Joseph's Hospital 


  • Spanish

> > > > Dr. Marshall Block, MD

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Additional Information
Dr. Marshall Burton Block MD is a male Internist, has 43 years of experience and practices in Internal Medicine.
Where does Dr. Marshall B. Block practice?
Dr. Marshall Block has 3 office locations.
Dr. Marshall Block practices Internal Medicine near Phoenix, AZ.
Additional practice locations include: Scottsdale, AZ.
See Phoenix Internists.