JASON T HATJIOANNOU MD
NPI 1740285923
Internal Medicine in Johnson City, TN
About Jason T Hatjioannou Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JASON T HATJIOANNOU MD (NPI 1740285923) is an individual internal medicine provider in Johnson City, Tennessee, licensed in Tennessee (18504) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Jason T Hatjioannou Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Jason Hatjioannou reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Johnson City, TN 37615
- Reassigned Medicare billing, Tennessee enrollment
- 357 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37615 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 21
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Jason Hatjioannou's NPI number?
The NPI number for Jason Hatjioannou is 1740285923. It was assigned to this individual provider in the NPPES registry on June 15, 2005.
Where is Jason Hatjioannou located?
Jason Hatjioannou practices at 1930 Villa Ct, Johnson City, TN 37615. The listed phone number is (423) 913-1423.
What is Jason Hatjioannou's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jason Hatjioannou enrolled in Medicare?
Yes. Jason Hatjioannou is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Jason Hatjioannou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jason Hatjioannou reassigns Medicare benefits to State Of Franklin Healthcare Associates PLLC (Johnson City, 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 Jason Hatjioannou's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Jason Hatjioannou was last updated on January 19, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.