DR. JUSTIN ARMSTRONG DO
NPI 1114583523
Internal Medicine - Interventional Cardiology in Royal Oak, MI
About Dr. Justin Armstrong Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JUSTIN ARMSTRONG DO (NPI 1114583523) is an individual interventional cardiology provider in Royal Oak, Michigan, licensed in Michigan (5101026853) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS, is affiliated with Beaumont Hospital Royal Oak, and is a graduate of Kansas City University Of Physicians And Surgeons (2019).
NPPES Registry Identity
Specialties & Licenses 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. Justin Armstrong 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 Justin Armstrong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Royal Oak, MI 48073
- Reassigned Medicare billing, Michigan enrollment
- 1,030 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Beaumont Hospital Royal Oak
Acute Care Hospitals · Royal Oak, MIBeaumont Hospital - Farmington Hills
Acute Care Hospitals · Farmington Hills, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48073 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.
ROYAL OAK, MI 48073
ROYAL OAK, MI 48073
ROYAL OAK, MI 48073
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 Justin Armstrong's NPI number?
The NPI number for Justin Armstrong is 1114583523. It was assigned to this individual provider in the NPPES registry on May 13, 2019.
Where is Justin Armstrong located?
Justin Armstrong practices at 3601 W 13 Mile Rd, Royal Oak, MI 48073. The listed phone number is (248) 898-4163.
What is Justin Armstrong's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Justin Armstrong enrolled in Medicare?
Yes. Justin Armstrong 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 Justin Armstrong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Armstrong reassigns Medicare benefits to Beaumont Medical Group- Specialty Services (Royal Oak, MI). 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 Justin Armstrong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Justin Armstrong accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health and UnitedHealthcare list Justin Armstrong 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 Justin Armstrong affiliated with any hospitals?
According to CMS data, Justin Armstrong is affiliated with Beaumont Hospital Royal Oak and Beaumont Hospital - Farmington Hills.
When was this NPI record last updated?
The NPPES record for Justin Armstrong was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 days 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. Justin Armstrong, DO · NPI 1114583523
Interventional Cardiology physician in Royal Oak, Michigan. Individual provider, active in the CMS NPPES registry since May 13, 2019.
## Identity
- **NPI:** 1114583523 (Entity type: Individual)
- **Enumerated:** May 13, 2019
- **Primary specialty:** Internal Medicine - Interventional Cardiology · taxonomy 207RI0011X
- **State license:** 5101026853 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3601 W 13 MILE RD, Royal Oak, MI 48073-6712
- **Phone:** (248) 898-4163
## 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:** Beaumont Medical Group- Specialty Services (NPI 1578072906, Royal Oak, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Kansas City University Of Physicians And Surgeons, class of 2019
## Record status
- **NPPES last updated:** September 1, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1114583523) · Data from the CMS NPPES public registry.