MARY J JOHNSON BARTON PMHNP-BC
NPI 1821543463
Nurse Practitioner - Psychiatric/Mental Health in Greeneville, TN

Q: What is Mary Johnson Barton's NPI number?

The NPI number for Mary Johnson Barton is 1821543463. It was assigned to this individual provider in the NPPES registry on August 24, 2016.

Q: What is Mary Johnson Barton's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Active since August 24, 2016PECOS EnrolledAccepts Medicare Assignment

401 HOLSTON DR, GREENEVILLE, TN 37743(423) 639-1104(423) 467-3644 Get Directions Write a Review

NPPES record last updated: February 13, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 13, 2025, Jan 10, 2025, Jan 18, 2019 and 1 more (4 updates tracked since 2016).

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About Mary J Johnson Barton Pmhnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY J JOHNSON BARTON PMHNP-BC (NPI 1821543463) is an individual psychiatric/mental health provider in Greeneville, Tennessee, licensed in Tennessee (APN0000021324) and active in the NPI registry since August 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Johnson City, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1821543463

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameMARY J JOHNSON BARTONCredential: PMHNP-BC

Location Address401 HOLSTON DRGreeneville, TN 37743-3127

Mailing Address1167 Spratlin Park DrGray, TN 37615-6205 · (423) 467-3600 · Fax (423) 467-3644

Phone(423) 639-1104

Fax(423) 467-3644

Sole ProprietorYes

Medical School CMSOtherGraduated 2018

Enumeration DateAugust 24, 2016

Last NPPES UpdateFebruary 13, 20254 updates tracked since enumeration

NPPES CertifiedFebruary 13, 2025

✔ NPI 1821543463 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in TN · APN0000021324

401 HOLSTON DR, Greeneville, TN 37743

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Secondary Practice Location 1

Location 1109 W Watauga AveJohnson City, TN 37604-5621 · Phone (423) 232-2600 · Fax (423) 467-3644

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee, Cigna Healthcare, Oscar Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary J Johnson Barton Pmhnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9032406418

PECOS Enrollment IDI20160928002468, I20250326001470

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Mary Johnson Barton reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Frontier Health

0.1 mi

Mental Health (Including Community Mental Health Center)

401 HOLSTON DR
Greeneville, TN 37743

Reassigned Medicare billing, Tennessee and Virginia enrollments
Also billed through NPI 1720147408 (Virginia)
126 clinicians in this Medicare group

NPI 1760547004 (423) 639-1104

Blue Ridge Medical Management Corporation

1.0 mi

Cardiovascular Disease

1021 COOLIDGE ST
Greeneville, TN 37743

Reassigned Medicare billing, Tennessee enrollment
496 clinicians in this Medicare group

NPI 1346279486 (423) 636-2339

Wellmont Medical Associates, Inc.

19 mi

Internal Medicine

405 SCENIC DR, SUITE A
Rogersville, TN 37857

Reassigned Medicare billing, Tennessee enrollment
861 clinicians in this Medicare group

NPI 1689032575 (423) 921-3490

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

54 services48 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37743 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$81.53 typical visit price

range $52.64 – $160.89

Typical copayment $20.38 (range $13.16 – $40.22)

Most-billed visit code 99203

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AMY TAIS CARRIER MA

Counselor