DR. JAMES ZACHARY MASON MD
NPI 1205806692
Neurological Surgery in North Little Rock, AR
About Dr. James Zachary Mason Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES ZACHARY MASON MD (NPI 1205806692) is an individual neurological surgery provider in North Little Rock, Arkansas, licensed in Arkansas (C5217) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1977).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. James Zachary Mason 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 Reassignment
Medicare enrollment records show James Mason reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
North Little Rock, AR 72118
- Reassigned Medicare billing, Arkansas enrollment
- 9 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 8
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 72118 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 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NORTH LITTLE ROCK, AR 72118
NORTH LITTLE ROCK, AR 72118
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 James Mason's NPI number?
The NPI number for James Mason is 1205806692. It was assigned to this individual provider in the NPPES registry on January 26, 2006.
Where is James Mason located?
James Mason practices at 5201 Northshore Dr Suite 100, North Little Rock, AR 72118. The listed phone number is (501) 225-0880.
What is James Mason's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is James Mason enrolled in Medicare?
Yes. James Mason 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 organization bills Medicare for James Mason's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Mason reassigns Medicare benefits to Neuroscience Associates PA (North Little Rock, AR). 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 James Mason's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Mason accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list James 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 James Mason was last updated on July 13, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.