DR. HEATHER KAYE MILLOY DO
NPI 1407483258
Emergency Medicine in Livonia, MI
About Dr. Heather Kaye Milloy Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HEATHER KAYE MILLOY DO (NPI 1407483258) is an individual emergency medicine provider in Livonia, Michigan, licensed in Tennessee (5584) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Sumner Regional Medical Center, and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses 2
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. Heather Kaye Milloy Do 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 Heather Milloy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Gallatin, TN 37066
- Reassigned Medicare billing, Tennessee enrollment
- 37 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 2
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sumner Regional Medical Center
Acute Care Hospitals · Gallatin, TNTristar Horizon Medical Center
Acute Care Hospitals · Dickson, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48154 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LIVONIA, MI 48154
LIVONIA, MI 48154
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 Heather Milloy's NPI number?
The NPI number for Heather Milloy is 1407483258. It was assigned to this individual provider in the NPPES registry on March 23, 2020.
Where is Heather Milloy located?
Heather Milloy practices at 36475 Five Mile Rd, Livonia, MI 48154. The listed phone number is (734) 655-4800.
What is Heather Milloy's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Heather Milloy enrolled in Medicare?
Yes. Heather Milloy 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 Heather Milloy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Heather Milloy reassigns Medicare benefits to Emergency Physicians At Sumner PLLC (Gallatin, TN). 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 Heather Milloy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Heather Milloy affiliated with any hospitals?
According to CMS data, Heather Milloy is affiliated with Sumner Regional Medical Center and Tristar Horizon Medical Center.
When was this NPI record last updated?
The NPPES record for Heather Milloy was last updated on March 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. Heather Kaye Milloy, DO · NPI 1407483258
Emergency Medicine physician in Livonia, Michigan. Individual provider, active in the CMS NPPES registry since March 23, 2020.
## Identity
- **NPI:** 1407483258 (Entity type: Individual)
- **Enumerated:** March 23, 2020
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 5584 (Tennessee)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 36475 FIVE MILE RD, Livonia, MI 48154-1971
- **Phone:** (734) 655-4800 · **Fax:** (734) 655-2911
## 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:** Emergency Physicians At Sumner PLLC (NPI 1538149521, Gallatin, TN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** March 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1407483258) · Data from the CMS NPPES public registry.