JAMES R MASON
NPI 1407276991
Radiology - Diagnostic Radiology in Mankato, MN
About James R Mason NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES R MASON (NPI 1407276991) is an individual diagnostic radiology provider in Mankato, Minnesota, licensed in Minnesota (82257) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Baptist Health Medical Center - Jacksonville, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 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 and accepts Medicare assignment
James R Mason 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 Reassignments
10Medicare enrollment records show James Mason reassigns Medicare billing to 10 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mankato, MN 56001
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1740256668 (Minnesota), NPI 1124035282 (Minnesota)
- 1,572 clinicians in this Medicare group
Saint James, MN 56081
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1023177730 (Minnesota)
- 390 clinicians in this Medicare group
Owatonna, MN 55060
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1063435410 (Minnesota)
- 1,571 clinicians in this Medicare group
Fairmont, MN 56031
- Reassigned Medicare billing, Minnesota enrollment
- 806 clinicians in this Medicare group
Lake City, MN 55041
- Reassigned Medicare billing, Minnesota enrollment
- Also billed through NPI 1164463659 (Minnesota)
- 675 clinicians in this Medicare group
Erie, PA 16550
- Reassigned Medicare billing, Pennsylvania enrollment
- 962 clinicians in this Medicare group
East Liverpool, OH 43920
- Reassigned Medicare billing, Pennsylvania enrollment
- 7,114 clinicians in this Medicare group
Atlanta, GA 30342
- Reassigned Medicare billing, Georgia and Pennsylvania enrollments
- 241 clinicians in this Medicare group
Philadelphia, PA 19131
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,205 clinicians in this Medicare group
Tampa, FL 33606
- Reassigned Medicare billing, Pennsylvania enrollment
- 52 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 22
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baptist Health Medical Center - Jacksonville
Acute Care Hospitals · Jacksonville, FLBaptist Medical Center Beaches
Acute Care Hospitals · Jacksonville Beach, FLBaptist Medical Center - Nassau
Acute Care Hospitals · Fernandina Beach, FLMayo Clinic Health System - Mankato
Acute Care Hospitals · Mankato, MNEinstein Medical Center Montgomery
Acute Care Hospitals · East Norriton, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 56001 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.
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 1407276991. It was assigned to this individual provider in the NPPES registry on April 23, 2014.
Where is James Mason located?
James Mason practices at 1025 Marsh St, Mankato, MN 56001. The listed phone number is (507) 625-4031.
What is James Mason's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
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 organizations bill Medicare for James Mason's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Mason reassigns Medicare benefits to 10 organizations: Mayo Clinic Health System-Southwest Minnesota Region (Mankato, MN), Mayo Clinic Health System-St James (Saint James, MN), Mayo Clinic Health System-Southeast Minnesota Region (Owatonna, MN), Mayo Clinic Health System-Fairmont (Fairmont, MN), Mayo Clinic Health System-Lake City (Lake City, MN) and 5 more organizations, 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 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 Cigna HealthCare of Florida, Inc., Cigna Healthcare, Oscar Health, Oscar Health Maintenance Organization of Florida and Oscar Insurance Company and 1 other insurer 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.
Is James Mason affiliated with any hospitals?
According to CMS data, James Mason is affiliated with Baptist Health Medical Center - Jacksonville, Baptist Medical Center Beaches, Baptist Medical Center - Nassau, Mayo Clinic Health System - Mankato and Einstein Medical Center Montgomery.
When was this NPI record last updated?
The NPPES record for James Mason was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.