MAZEN K KHALIL MD
NPI 1679725808
Internal Medicine - Interventional Cardiology in Nashville, TN
About Mazen K Khalil Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAZEN K KHALIL MD (NPI 1679725808) is an individual interventional cardiology provider in Nashville, Tennessee, licensed in Tennessee (65874) and active in the NPI registry since October 2008. He is enrolled in Medicare PECOS, is affiliated with Memorial University Medical Center, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 3
Other Identifiers 1
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
Mazen K Khalil 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 Reassignments
2Medicare enrollment records show Mazen Khalil reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sumter, SC 29150
- Reassigned Medicare billing, South Carolina enrollment
- 99 clinicians in this Medicare group
Savannah, GA 31404
- Reassigned Medicare billing, Georgia enrollment
- 105 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.
Areas of Expertise CMS Part B claims 24
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial University Medical Center
Acute Care Hospitals · Savannah, GAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37232 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
NASHVILLE, TN 37232
NASHVILLE, TN 37232
NASHVILLE, TN 37232
NASHVILLE, TN 37232
NASHVILLE, TN 37232
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 Mazen Khalil's NPI number?
The NPI number for Mazen Khalil is 1679725808. It was assigned to this individual provider in the NPPES registry on October 21, 2008.
Where is Mazen Khalil located?
Mazen Khalil practices at 3601 The Vanderbilt Clinic, Nashville, TN 37232. The listed phone number is (615) 936-2000.
What is Mazen Khalil's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Mazen Khalil enrolled in Medicare?
Yes. Mazen Khalil 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 organizations bill Medicare for Mazen Khalil's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mazen Khalil reassigns Medicare benefits to 2 organizations: Prisma Health Tuomey (Sumter, SC) and Savannah Multispecialty Associates, LLC (Savannah, GA). Each 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 Mazen Khalil's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mazen Khalil accept?
Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama and Ambetter of North Carolina and 2 other insurers list Mazen Khalil 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 Mazen Khalil affiliated with any hospitals?
According to CMS data, Mazen Khalil is affiliated with Memorial University Medical Center.
When was this NPI record last updated?
The NPPES record for Mazen Khalil was last updated on November 9, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.