DR. MASON MARCUS MD
NPI 1003300617
Internal Medicine - Clinical Cardiac Electrophysiology in Dallas, TX
About Dr. Mason Marcus Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MASON MARCUS MD (NPI 1003300617) is an individual clinical cardiac electrophysiology provider in Dallas, Texas, licensed in New Mexico (MD2026-0339) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mason Marcus Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75390 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DALLAS, TX 75390
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 Mason Marcus's NPI number?
The NPI number for Mason Marcus is 1003300617. It was assigned to this individual provider in the NPPES registry on June 18, 2018.
Where is Mason Marcus located?
Mason Marcus practices at 5323 Harry Hines Blvd, Dallas, TX 75390. The listed phone number is (214) 645-8000.
What is Mason Marcus's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Clinical Cardiac Electrophysiology, with taxonomy code 207RC0001X.
Is Mason Marcus enrolled in Medicare?
Yes. Mason Marcus is registered in the Medicare PECOS enrollment system.
What insurance does Mason Marcus accept?
Health plans from Blue Cross and Blue Shield of Texas list Mason Marcus 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.
When was this NPI record last updated?
The NPPES record for Mason Marcus was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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.
