Browse Health
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. William Knowler:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Have you visited Dr. Knowler? Share your experience.
Write a Review

Specialties & Research

Dr. William Knowler, MD is board certified in Preventive Medicine.

Education & Awards

Dr. Knowler graduated from Harvard University , Boston.


Dr. Knowler has 1 hospital affiliations:

  • Out of State Hospital 

Similar doctors nearby

Dr. Robert Nelson

Internal Medicine
34 years experience
Phoenix, AZ

Dr. Robert Hanson

Internal Medicine
26 years experience
Phoenix, AZ

Dr. Eric Anders

Preventive Medicine
Phoenix, AZ

Dr. Maria Desouza

Preventive Medicine
27 years experience
Phoenix, AZ

Dr. Mark Speckhard

Obstetrics & Gynecology
Phoenix, AZ

Dr. Romulo Silva

Preventive Medicine
Phoenix, AZ
Search All Similar Doctors
Additional Information
Dr. William C Knowler MD is a male Preventative Medicine Specialist, has 39 years of experience and practices in Preventive Medicine.
Where does Dr. William C. Knowler practice?
Dr. William Knowler has 1 office location.
Dr. William Knowler practices Preventive Medicine near Phoenix, AZ.
See Phoenix Preventive Medicine Specialists.