GRANT ELLIOT MACKINNON MD
NPI 1720666795
Radiology - Diagnostic Radiology in Fort Wayne, IN
About Grant Elliot Mackinnon Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRANT ELLIOT MACKINNON MD (NPI 1720666795) is an individual diagnostic radiology provider in Fort Wayne, Indiana, licensed in Michigan (4301509433) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Vanderbilt University School Of Medicine (2021).
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 (PECOS)
Grant Elliot Mackinnon Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Grant Mackinnon reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fort Wayne, IN 46804
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Summit Radiology PC
- 29 clinicians in this Medicare group
Linton, IN 47441
- Reassigned Medicare billing, Michigan enrollment
- 5 clinicians in this Medicare group
Portland, OR 97227
- Reassigned Medicare billing, Michigan enrollment
- 4 clinicians in this Medicare group
Portland, OR 97210
- Reassigned Medicare billing, Michigan enrollment
- 4 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46804 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 2
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.
FORT WAYNE, IN 46804
FORT WAYNE, IN 46804
FORT WAYNE, IN 46804
FORT WAYNE, IN 46804
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 Grant Mackinnon's NPI number?
The NPI number for Grant Mackinnon is 1720666795. It was assigned to this individual provider in the NPPES registry on March 31, 2021.
Where is Grant Mackinnon located?
Grant Mackinnon practices at 7950 W Jefferson Blvd, Fort Wayne, IN 46804. The listed phone number is (260) 435-7001.
What is Grant Mackinnon's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Grant Mackinnon enrolled in Medicare?
Yes. Grant Mackinnon is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Grant Mackinnon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grant Mackinnon reassigns Medicare benefits to 4 organizations: Summit Radiology P C (Fort Wayne, IN), Greene County General Hospital (Linton, IN), Ts Radiology Billings, LLC (Portland, OR) and Pacific Imaging Associates LLC (Portland, OR). 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 Grant Mackinnon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grant Mackinnon accept?
Health plans from CareSource list Grant Mackinnon 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.
When was this NPI record last updated?
The NPPES record for Grant Mackinnon was last updated on July 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Grant Elliot Mackinnon, MD · NPI 1720666795
Diagnostic Radiology physician in Fort Wayne, Indiana. Individual provider, active in the CMS NPPES registry since March 31, 2021.
## Identity
- **NPI:** 1720666795 (Entity type: Individual)
- **Enumerated:** March 31, 2021
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** 4301509433 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 7950 W JEFFERSON BLVD, Fort Wayne, IN 46804-4160
- **Phone:** (260) 435-7001
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Summit Radiology P C (NPI 1073584587, Fort Wayne, IN); Greene County General Hospital (NPI 1942703004, Linton, IN); Ts Radiology Billings, LLC (NPI 1669413514, Portland, OR); Pacific Imaging Associates LLC (NPI 1265137574, Portland, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Vanderbilt University School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** July 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1720666795) · Data from the CMS NPPES public registry.