JAMES S. MASON D.O.
NPI 1902870934
Orthopaedic Surgery in Lowville, NY
About James S. Mason D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES S. MASON D.O. (NPI 1902870934) is an individual orthopaedic surgery provider in Lowville, New York, licensed in New York (309442) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Lewis County General Hospital, and maintains a secondary practice location in Albany.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 4
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
James S. Mason D.o. 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.
Lowville, NY 13367
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Lewis County
- 50 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 6
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lewis County General Hospital
Critical Access Hospitals · Lowville, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 13367 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 7
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 James Mason's NPI number?
The NPI number for James Mason is 1902870934. It was assigned to this individual provider in the NPPES registry on February 15, 2006.
Where is James Mason located?
James Mason practices at 7785 N State St Ste 120, Lowville, NY 13367. The listed phone number is (315) 376-4505.
What is James Mason's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
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 Lewis County General Hospital (Lowville, NY). 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.
Is James Mason affiliated with any hospitals?
According to CMS data, James Mason is affiliated with Lewis County General Hospital.
When was this NPI record last updated?
The NPPES record for James Mason was last updated on April 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.