STEADMAN A MASON MD
NPI 1306858139
General Practice in Acoma, NM
About Steadman A Mason Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
STEADMAN A MASON MD (NPI 1306858139) is an individual general practice provider in Acoma, New Mexico, licensed in California (C50760) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1982).
NPPES Registry Identity
Specialties & Licenses 2
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 (PECOS)
Steadman A Mason Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
6Medicare enrollment records show Steadman Mason reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dallas, TX 75244
- Reassigned Medicare billing, Kentucky and Virginia enrollments
- 390 clinicians in this Medicare group
Dallas, TX 75244
- Reassigned Medicare billing, Georgia enrollment
- 488 clinicians in this Medicare group
San Francisco, CA 94111
- Reassigned Medicare billing, California enrollment
- 407 clinicians in this Medicare group
Liberty, KY 42539
- Reassigned Medicare billing, Kentucky enrollment
- 29 clinicians in this Medicare group
Culpeper, VA 22701
- Reassigned Medicare billing, Virginia enrollment
- 1,294 clinicians in this Medicare group
Franklin, VA 23851
- Reassigned Medicare billing, Virginia enrollment
- 219 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.
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 Steadman Mason's NPI number?
The NPI number for Steadman Mason is 1306858139. It was assigned to this individual provider in the NPPES registry on August 12, 2006.
Where is Steadman Mason located?
Steadman Mason practices at 80 B Veterans Blvd, Acoma, NM 87034. The listed phone number is (505) 552-5300.
What is Steadman Mason's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Steadman Mason enrolled in Medicare?
Yes. Steadman Mason is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Steadman Mason's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steadman Mason reassigns Medicare benefits to 6 organizations: Signify Health, LLC (Dallas, TX), Signify Health Medical Associates, PLLC (Dallas, TX), Signify Health Medical Associates Of California, PC (San Francisco, CA), Casey County Hospital District (Liberty, KY), Emergency Medicine Associates P.A., P.C. (Culpeper, VA) 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 Steadman Mason's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Steadman Mason accept?
Health plans from CareSource and CareSource (Common Ground Healthcare) list Steadman Mason 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 Steadman Mason was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.
# Steadman A Mason, MD · NPI 1306858139
General Practice physician in Acoma, New Mexico. Individual provider, active in the CMS NPPES registry since August 12, 2006.
## Identity
- **NPI:** 1306858139 (Entity type: Individual)
- **Enumerated:** August 12, 2006
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** C50760 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 80 B VETERANS BLVD, Acoma, NM 87034
- **Phone:** (505) 552-5300 · **Fax:** (505) 552-5490
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Signify Health, LLC (NPI 1689158487, Dallas, TX); Signify Health Medical Associates, PLLC (NPI 1750845863, Dallas, TX); Signify Health Medical Associates Of California, PC (NPI 1124685169, San Francisco, CA); Casey County Hospital District (NPI 1407829567, Liberty, KY); Emergency Medicine Associates P.A., P.C. (NPI 1881559102, Culpeper, VA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1982
## Record status
- **NPPES last updated:** February 2, 2026
- **Other identifiers:** Medicaid H3451 (NM)
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Source: [NPI Profile](https://npiprofile.com/npi/1306858139) · Data from the CMS NPPES public registry.