DR. D TYLER GREENFIELD MD
NPI 1710942545
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Kingsport, TN
About Dr. D Tyler Greenfield Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. D TYLER GREENFIELD MD (NPI 1710942545) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Kingsport, Tennessee, licensed in Tennessee (29195) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Wellmont Holston Valley Medical Center, and is a graduate of Other (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Dr. D Tyler Greenfield Md 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 D Greenfield reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Kingsport, TN 37660
- Reassigned Medicare billing, Tennessee enrollment
- 861 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.
Wellmont Holston Valley Medical Center
Acute Care Hospitals · Kingsport, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37660 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KINGSPORT, TN 37660
KINGSPORT, TN 37660
KINGSPORT, TN 37660
KINGSPORT, TN 37660
KINGSPORT, TN 37660
KINGSPORT, TN 37660
KINGSPORT, TN 37660
KINGSPORT, TN 37660
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 D Greenfield's NPI number?
The NPI number for D Greenfield is 1710942545. It was assigned to this individual provider in the NPPES registry on April 17, 2006.
Where is D Greenfield located?
D Greenfield practices at 2050 Meadowview Parkway, Kingsport, TN 37660. The listed phone number is (423) 230-5000.
What is D Greenfield's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is D Greenfield enrolled in Medicare?
Yes. D Greenfield 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 D Greenfield's services?
According to the CMS Revalidation Reassignment List (October 2026 release), D Greenfield reassigns Medicare benefits to Wellmont Medical Associates, Inc. (Kingsport, 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 D Greenfield's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does D Greenfield accept?
Health plans from BlueCross BlueShield of Tennessee list D Greenfield 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 D Greenfield affiliated with any hospitals?
According to CMS data, D Greenfield is affiliated with Wellmont Holston Valley Medical Center.
When was this NPI record last updated?
The NPPES record for D Greenfield was last updated on April 13, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.