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16390 N 59th AveSte 200Glendale, AZ 85306
Phone+1 623-334-4000
Fax+1 623-334-4400
Dr. Johnston is on Doximity
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Education & Training
University of Toronto Faculty of MedicineClass of 1993
Certifications & Licensure
AZ State Medical License 1995 - 2027
FL State Medical License 2017 - 2027
MI State Medical License 2017 - 2027
TX State Medical License 2024 - 2026
OH State Medical License 2017 - 2026
NM State Medical License 2016 - 2026
NE State Medical License 2017 - 2026
American Board of Family Medicine Family Medicine- Join now to see all
Awards, Honors, & Recognition
- Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2011
- Physician Practice Connections Recognition Program National Committee for Quality Assurance, 2011-2014
- Patient-Centered Medical Home Recognition Program National Committee for Quality Assurance, 2011-2014
Clinical Trials
- Dose-Ranging Study to Evaluate the Glycemic Effects, Safety, and Tolerability of Metformin Delayed Release in Subjects With T2DM Start of enrollment: 2015 Sep 01
Press Mentions
Doctors in the Valley Anticipate Another Week of High COVID CasesJanuary 9th, 2022- How to Safely Plan a Holiday Gathering During the Omicron WaveDecember 14th, 2021
- Back-to-School Health, Safety Tips Amid Rise in COVID-19 CasesJuly 29th, 2021
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