DR. STEVEN A MASSON MD
NPI 1871723932
Emergency Medicine in Dallas, TX
About Dr. Steven A Masson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN A MASSON MD (NPI 1871723932) is an individual emergency medicine provider in Dallas, Texas, licensed in Texas (P3770) and active in the NPI registry since July 2009. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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)
Dr. Steven A Masson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Steven Masson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dallas, TX 75246
- Reassigned Medicare billing, Texas enrollment
- 1,044 clinicians in this Medicare group
Killeen, TX 76549
- Reassigned Medicare billing, Texas enrollment
- 387 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 75251 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.
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 Steven Masson's NPI number?
The NPI number for Steven Masson is 1871723932. It was assigned to this individual provider in the NPPES registry on July 22, 2009.
Where is Steven Masson located?
Steven Masson practices at 12221 Merit Dr Suite 1610, Dallas, TX 75251. The listed phone number is (214) 217-1911.
What is Steven Masson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Steven Masson enrolled in Medicare?
Yes. Steven Masson is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Steven Masson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Masson reassigns Medicare benefits to 2 organizations: Century Integrated Partners, Inc (Dallas, TX) and Sound Physicians Emergency Medicine Of Texas PLLC (Killeen, TX). 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 Steven Masson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Steven Masson accept?
Health plans from Blue Cross and Blue Shield of Texas, Oscar Health and Oscar Insurance Company list Steven Masson 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 Steven Masson was last updated on March 7, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Steven A Masson, MD · NPI 1871723932
Emergency Medicine physician in Dallas, Texas. Individual provider, active in the CMS NPPES registry since July 22, 2009.
## Identity
- **NPI:** 1871723932 (Entity type: Individual)
- **Enumerated:** July 22, 2009
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** P3770 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 12221 MERIT DR, SUITE 1610, Dallas, TX 75251-2202
- **Phone:** (214) 217-1911 · **Fax:** (214) 217-1912
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Century Integrated Partners, Inc (NPI 1447615711, Dallas, TX); Sound Physicians Emergency Medicine Of Texas PLLC (NPI 1518475557, Killeen, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 7, 2013
- **Other identifiers:** Medicaid 305981802 (TX); Other P01125267 (TX); Medicaid 305981801 (TX); and 2 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1871723932) · Data from the CMS NPPES public registry.