MATTHEW J COX MD
NPI 1144319369
Pediatrics in Dallas, TX
About Matthew J Cox Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MATTHEW J COX MD (NPI 1144319369) is an individual pediatrics provider in Dallas, Texas, licensed in Texas (L9156) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
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 (PECOS)
Matthew J Cox Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Matthew Cox reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mountain Home, ID 83647
- Reassigned Medicare billing, Idaho enrollment
- 1,312 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 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.
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.
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
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 Matthew Cox's NPI number?
The NPI number for Matthew Cox is 1144319369. It was assigned to this individual provider in the NPPES registry on October 12, 2006.
Where is Matthew Cox located?
Matthew Cox practices at 5323 Harry Hines Blvd, Dallas, TX 75390. The listed phone number is (214) 730-5437.
What is Matthew Cox's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Matthew Cox enrolled in Medicare?
Yes. Matthew Cox is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Matthew Cox's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Cox reassigns Medicare benefits to St Lukes Clinic-Treasure Valley LLC (Mountain Home, ID). 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 Matthew Cox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Matthew Cox accept?
Health plans from Moda Health Plan, Inc., Providence Health Plan and Select Health list Matthew Cox 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 Matthew Cox was last updated on April 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Matthew J Cox, MD · NPI 1144319369
Pediatrics physician in Dallas, Texas. Individual provider, active in the CMS NPPES registry since October 12, 2006.
## Identity
- **NPI:** 1144319369 (Entity type: Individual)
- **Enumerated:** October 12, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** L9156 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 5323 HARRY HINES BLVD, Dallas, TX 75390-7208
- **Phone:** (214) 730-5437
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** St Lukes Clinic-Treasure Valley LLC (NPI 1417297821, Mountain Home, ID), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 11, 2008
- **Other identifiers:** Medicare UPIN H84354; Medicare ID-Type Unspecified 8B9954
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Source: [NPI Profile](https://npiprofile.com/npi/1144319369) · Data from the CMS NPPES public registry.