Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Richard Leake Johnston, MD

Individual provider Internal Medicine Physician · NPI 1790717478

Mr. Richard Leake Johnston, MD is an Emergency Medicine in Columbus, Mississippi. Graduated from University of Mississippi School of Medicine in 2002, 24 years ago. Practices with Gastroenterology Associates of Columbus, PA, a 10-clinician group and accepts Medicare assignment. Licensed in Florida and Mississippi.

Years since qualifying
24
Trained at
University of Mississippi School of Medicine
Licensed in
FL, MS
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

600 Leigh Dr
Columbus, MS 39705
Phone: (662) 327-7525
Fax: (662) 243-2252
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 18377 (MS)
Internal Medicine Physician Taxonomy 207R00000X · Licence 18377 (MS)
Gastroenterology Physician Taxonomy 207RG0100X · Licence TRN-10588 (FL)

Record details

NPI number1790717478
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 6, 2006
Last updated in NPPESJanuary 10, 2012

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Also practisesGASTROENTEROLOGY, INTERNAL MEDICINE
Medical schoolUNIVERSITY OF MISSISSIPPI SCHOOL OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Gastroenterology Associates Of Columbus, Pa — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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