TERRENCE J CAHILL MD
NPI 1528382603
Physical Medicine & Rehabilitation in Billings, MT
About Terrence J Cahill Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TERRENCE J CAHILL MD (NPI 1528382603) is an individual physical medicine & rehabilitation provider in Billings, Montana, licensed in Montana (12375) and active in the NPI registry since March 2010. He is enrolled in Medicare PECOS, is affiliated with Billings Clinic, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2006).
NPPES Registry Identity
Specialties & Licenses
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
Terrence J Cahill 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 Terrence Cahill reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Billings, MT 59101
- Reassigned Medicare billing, Montana enrollment
- 1,264 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 10
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.
Billings Clinic
Acute Care Hospitals · Billings, MTMedicare 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.
Referred Medical Equipment & Supplies CMS DME claims 4
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.
BILLINGS, MT 59101
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 Terrence Cahill's NPI number?
The NPI number for Terrence Cahill is 1528382603. It was assigned to this individual provider in the NPPES registry on March 18, 2010.
Where is Terrence Cahill located?
Terrence Cahill practices at 801 N 29th St, Billings, MT 59101. The listed phone number is (406) 238-2500.
What is Terrence Cahill's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Terrence Cahill enrolled in Medicare?
Yes. Terrence Cahill 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 Terrence Cahill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Terrence Cahill reassigns Medicare benefits to Billings Clinic (Billings, 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 Terrence Cahill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Terrence Cahill accept?
Health plans from Blue Cross and Blue Shield of Montana and Mountain Health CO-OP list Terrence Cahill 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 Terrence Cahill affiliated with any hospitals?
According to CMS data, Terrence Cahill is affiliated with Billings Clinic.
When was this NPI record last updated?
The NPPES record for Terrence Cahill was last updated on February 22, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.