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

Dr. John Thomas Harris, MD

Individual provider Psychiatry Physician · NPI 1710189709

Dr. John Thomas Harris, MD is a Psychiatry Physician in Helena, Montana. Licensed in Montana. Registered with an NPI since 2007.

Licensed in
MT
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

900 Jackson St Center For Mental Health
Helena, MT 59601-3428
Phone: (406) 443-7151
Fax: (406) 443-3420
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 11371 (MT)

Record details

NPI number1710189709
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 3, 2007
Last updated in NPPESMarch 7, 2023
Mailing addressPo Box 3089, Center For Mental Health, Great Falls, MT 59403-3089

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