DR. MARCO DIAZ MD
NPI 1104015577
Emergency Medicine in El Paso, TX
About Dr. Marco Diaz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARCO DIAZ MD (NPI 1104015577) is an individual emergency medicine provider in El Paso, Texas, licensed in Texas (N0730) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS, is affiliated with Las Palmas Medical Center A Campus Of Lpds Healthc, and is a graduate of University Of New Mexico School Of Medicine (2006).
NPPES Registry Identity
Specialties & Licenses 2
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. Marco Diaz 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
6Medicare enrollment records show Marco Diaz reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
El Paso, TX 79911
- Reassigned Medicare billing, Texas enrollment
- 4 clinicians in this Medicare group
El Paso, TX 79936
- Reassigned Medicare billing, Texas enrollment
- 172 clinicians in this Medicare group
Horizon City, TX 79928
- Reassigned Medicare billing, Texas enrollment
- 125 clinicians in this Medicare group
Plainview, TX 79072
- Reassigned Medicare billing, Texas enrollment
- 217 clinicians in this Medicare group
Arlington, TX 76015
- Reassigned Medicare billing, Texas enrollment
- 454 clinicians in this Medicare group
Orange, TX 77630
- Reassigned Medicare billing, Texas enrollment
- 205 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 5
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Las Palmas Medical Center A Campus Of Lpds Healthc
Acute Care Hospitals · El Paso, TXSierra Medical Center
Acute Care Hospitals · El Paso, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 79912 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
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 Marco Diaz's NPI number?
The NPI number for Marco Diaz is 1104015577. It was assigned to this individual provider in the NPPES registry on October 22, 2007.
Where is Marco Diaz located?
Marco Diaz practices at 6283 Franklin Point Dr, El Paso, TX 79912. The listed phone number is (915) 929-1069.
What is Marco Diaz's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Marco Diaz enrolled in Medicare?
Yes. Marco Diaz 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 Marco Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marco Diaz reassigns Medicare benefits to 6 organizations: Fmuc, PLLC (El Paso, TX), Bluff Creek Emergency Medicine Associates, PA (El Paso, TX), Pearsall Emergency Medicine Associates, PA (Horizon City, TX), Hospitalist Medicine Physicians Of Texas - Houston, PLLC (Plainview, TX), Questcare Medical Services, PLLC (Arlington, TX) and 1 more organization, listed in the Medicare section above. 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 Marco Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marco Diaz accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 9 other insurers list Marco Diaz 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 Marco Diaz affiliated with any hospitals?
According to CMS data, Marco Diaz is affiliated with Las Palmas Medical Center A Campus Of Lpds Healthc and Sierra Medical Center.
When was this NPI record last updated?
The NPPES record for Marco Diaz was last updated on January 23, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.