DR. JUSTIN JACOB ALEXANDER M.D.
NPI 1821300492
Physical Medicine & Rehabilitation in Atlanta, GA
About Dr. Justin Jacob Alexander M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JUSTIN JACOB ALEXANDER M.D. (NPI 1821300492) is an individual physical medicine & rehabilitation provider in Atlanta, Georgia, licensed in Georgia (74102) and active in the NPI registry since July 2010. He is enrolled in Medicare PECOS and is a graduate of University Of Alabama School Of Medicine (2010).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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 Jacob Alexander M.d. 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 Reassignments
4Medicare enrollment records show Justin Alexander reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Atlanta, GA 30328
- Reassigned Medicare billing, Georgia enrollment
Marietta, GA 30062
- Reassigned Medicare billing, Georgia enrollment
- 4 clinicians in this Medicare group
Princess Anne, MD 21853
- Reassigned Medicare billing, Georgia enrollment
- 55 clinicians in this Medicare group
Miami Beach, FL 33139
- Reassigned Medicare billing, Georgia enrollment
- 2 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 4
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.
Medicare 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.
Reported Quality Measures
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 Alexander's NPI number?
The NPI number for Justin Alexander is 1821300492. It was assigned to this individual provider in the NPPES registry on July 11, 2010.
Where is Justin Alexander located?
Justin Alexander practices at 1 Glenlake Pkwy Ste 700, Atlanta, GA 30328. The listed phone number is (205) 427-4375.
What is Justin Alexander's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Justin Alexander enrolled in Medicare?
Yes. Justin Alexander 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 organizations bill Medicare for Justin Alexander's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Alexander reassigns Medicare benefits to 4 organizations: Justin Alexander LLC (Atlanta, GA), Synergy Rehab PC (Marietta, GA), Medical Director Services PC (Princess Anne, MD) and Southeast Pain Management LLC (Miami Beach, FL). 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 Justin Alexander's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Justin Alexander was last updated on February 3, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.