DR. MICHAEL K DUFFY MD
NPI 1790742898
Family Medicine in Twin Falls, ID
About Dr. Michael K Duffy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL K DUFFY MD (NPI 1790742898) is an individual family medicine provider in Twin Falls, Idaho, licensed in Idaho (M-8822) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Northern Light A R Gould Hospital, 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
Dr. Michael K Duffy 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 Duffy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Presque Isle, ME 04769
- Reassigned Medicare billing, Maine enrollment
- 168 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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Light A R Gould Hospital
Acute Care Hospitals · Presque Isle, MECentral Maine Medical Center
Acute Care Hospitals · Lewiston, MECary Medical Center
Acute Care Hospitals · Caribou, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 83301 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 15
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 Michael Duffy's NPI number?
The NPI number for Michael Duffy is 1790742898. It was assigned to this individual provider in the NPPES registry on May 1, 2006.
Where is Michael Duffy located?
Michael Duffy practices at 388 Martin St, Twin Falls, ID 83301. The listed phone number is (208) 734-0451.
What is Michael Duffy's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Michael Duffy enrolled in Medicare?
Yes. Michael Duffy 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 Duffy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Duffy reassigns Medicare benefits to The Aroostook Medical Center (Presque Isle, ME). 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 Duffy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Duffy accept?
Health plans from Anthem Blue Cross and Blue Shield, Moda Health Plan, Inc. and Taro Health list Michael Duffy 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 Duffy affiliated with any hospitals?
According to CMS data, Michael Duffy is affiliated with Northern Light A R Gould Hospital, Central Maine Medical Center and Cary Medical Center.
When was this NPI record last updated?
The NPPES record for Michael Duffy was last updated on May 17, 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.
# Dr. Michael K Duffy, MD · NPI 1790742898
Family Medicine physician in Twin Falls, Idaho. Individual provider, active in the CMS NPPES registry since May 1, 2006.
## Identity
- **NPI:** 1790742898 (Entity type: Individual)
- **Enumerated:** May 1, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** M-8822 (Idaho)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 388 MARTIN ST, Twin Falls, ID 83301-4544
- **Phone:** (208) 734-0451
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Aroostook Medical Center (NPI 1982723037, Presque Isle, ME), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** May 17, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1790742898) · Data from the CMS NPPES public registry.