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

Dr. Leland Mann Johnston Jr., MD

Individual provider Psychiatry Physician · NPI 1992844708

Dr. Leland Mann Johnston Jr., MD is a Psychiatry Physician in Boulder, Colorado. Licensed in Colorado. Registered with an NPI since 2007.

Licensed in
CO
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1740 Sumac Ave
Boulder, CO 80304-0814
Phone: (720) 565-1422
Fax: (866) 849-7805
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 38458 (CO)

Record details

NPI number1992844708
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 6, 2007
Last updated in NPPESJanuary 25, 2008

Other providers in Boulder