MARYELLEN JOHNSON FNP
NPI 1710860432
Nurse Practitioner - Family in Greeneville, TN
About Maryellen Johnson Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARYELLEN JOHNSON FNP (NPI 1710860432) is an individual family provider in Greeneville, Tennessee, licensed in Tennessee (39345) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS, is affiliated with Greeneville Community Hospital, and is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses
Accepted 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
Maryellen Johnson Fnp 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.
Medicare Billing Reassignment
Medicare enrollment records show Maryellen Johnson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Morristown, TN 37813
- Reassigned Medicare billing, Tennessee enrollment
- Medicare enrollment name: Healthstar Physicians PC
- 85 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Greeneville Community Hospital
Acute Care Hospitals · Greeneville, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37745 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Maryellen Johnson's NPI number?
The NPI number for Maryellen Johnson is 1710860432. It was assigned to this individual provider in the NPPES registry on July 29, 2025.
Where is Maryellen Johnson located?
Maryellen Johnson practices at 3225 East Aj Hwy, Greeneville, TN 37745. The listed phone number is (423) 922-9224.
What is Maryellen Johnson's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Maryellen Johnson enrolled in Medicare?
Yes. Maryellen Johnson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Maryellen Johnson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maryellen Johnson reassigns Medicare benefits to Healthstar Physicians, P.C. (Morristown, TN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Maryellen Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maryellen Johnson accept?
Health plans from BlueCross BlueShield of Tennessee and UnitedHealthcare list Maryellen Johnson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Maryellen Johnson affiliated with any hospitals?
According to CMS data, Maryellen Johnson is affiliated with Greeneville Community Hospital.
When was this NPI record last updated?
The NPPES record for Maryellen Johnson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Maryellen Johnson, FNP · NPI 1710860432
Family physician in Greeneville, Tennessee. Individual provider, active in the CMS NPPES registry since July 29, 2025.
## Identity
- **NPI:** 1710860432 (Entity type: Individual)
- **Enumerated:** July 29, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 39345 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 3225 EAST AJ HWY, Greeneville, TN 37745-4066
- **Phone:** (423) 922-9224 · **Fax:** (423) 525-5708
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Healthstar Physicians, P.C. (NPI 1184610248, Morristown, TN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1710860432) · Data from the CMS NPPES public registry.