Mark Johnston, MD

Gastroenterology · Psychiatry

19+ years in practiceNPI: 1659404226Licensed in UT

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Credentials & Recognition

Specialties

GastroenterologyPsychiatry

NPI sub-specialties

Psychiatry & Neurology, Psychiatry2084P0800X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

19+ years

Estimated from NPI enumeration date

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Frequently Asked Questions about Dr. Mark Johnston, MD

Where does Dr. Mark Johnston, MD practice?+
Dr. Mark Johnston, MD practices in Pennsylvania, PA. 419 WAKARA WAY #200 SALT LAKE CITY, UT 841081257.
What is Dr. Mark Johnston, MD's phone number?+
Dr. Mark Johnston, MD's practice phone is 801-583-1781. Office contact information is verified on the PBCMMG profile.
What does Dr. Mark Johnston, MD specialize in?+
Dr. Mark Johnston, MD's primary specialty is Psychiatry, with additional focus on Gastroenterology.
Is Dr. Mark Johnston, MD board certified?+
Board certification status for Dr. Mark Johnston, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Mark Johnston, MD been practicing?+
Dr. Mark Johnston, MD has been in active practice for 19+ years, based on NPI enumeration and state licensing records.
What is Dr. Mark Johnston, MD's NPI number?+
Dr. Mark Johnston, MD's National Provider Identifier (NPI) is 1659404226, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

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