Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mary J Johnson Barton, PMHNP-BC

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1821543463

Mary J Johnson Barton, PMHNP-BC is a Nurse Practitioner in Greeneville, Tennessee. Qualified in 2018, 8 years ago. Practices with Frontier Health, a 69-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Tennessee.

Years since qualifying
8
Licensed in
TN
In the registry since
2016
What do these letters mean?
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.

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Practice location Address checks out

401 Holston Dr
Greeneville, TN 37743-3127
Phone: (423) 639-1104
Fax: (423) 467-3644
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 109 W Watauga Ave, Johnson City, TN 37604-5621 — (423) 232-2600

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence APN0000021324 (TN)

Record details

NPI number1821543463
Entity typeIndividual (Type 1)
GenderFemale
Credentials PMHNP-BC
Sole proprietorYes
NPI enumeratedAugust 24, 2016
Last updated in NPPESFebruary 13, 2025
Certification dateFebruary 13, 2025

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Frontier Health — 69 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations6 on file with Medicare

Other providers in Greeneville