DR. MICHAEL ALLEN SHEFFIELD MD
NPI 1801867379
Hospitalist in Great Falls, MT
About Dr. Michael Allen Sheffield Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL ALLEN SHEFFIELD MD (NPI 1801867379) is an individual hospitalist provider in Great Falls, Montana, licensed in Montana (104463) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Benefis Hospitals Inc, and maintains a secondary practice location in Great Falls.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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. Michael Allen Sheffield 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 Michael Sheffield reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Great Falls, MT 59405
- Reassigned Medicare billing, Montana enrollment
- 637 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 7
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.
Benefis Hospitals Inc
Acute Care Hospitals · Great Falls, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59405 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
GREAT FALLS, MT 59405
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 Michael Sheffield's NPI number?
The NPI number for Michael Sheffield is 1801867379. It was assigned to this individual provider in the NPPES registry on January 31, 2006.
Where is Michael Sheffield located?
Michael Sheffield practices at 1101 26th St S, Great Falls, MT 59405. The listed phone number is (406) 455-5000.
What is Michael Sheffield's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Michael Sheffield enrolled in Medicare?
Yes. Michael Sheffield 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 Michael Sheffield's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Sheffield reassigns Medicare benefits to Benefis Hospitals, Inc. (Great Falls, MT). 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 Michael Sheffield's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Sheffield accept?
Health plans from Blue Cross and Blue Shield of Montana, Cigna Healthcare and Imperial Insurance Companies, Inc. list Michael Sheffield 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 Michael Sheffield affiliated with any hospitals?
According to CMS data, Michael Sheffield is affiliated with Benefis Hospitals Inc.
When was this NPI record last updated?
The NPPES record for Michael Sheffield was last updated on February 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.