MR. JUSTIN DANIEL GELLMAN BS
NPI 1659122182
General Practice in Clayton, MO
About Mr. Justin Daniel Gellman Bs NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. JUSTIN DANIEL GELLMAN BS (NPI 1659122182) is an individual general practice provider in Clayton, Missouri, licensed in Missouri (2026028673) and active in the NPI registry since April 2024. He is enrolled in Medicare PECOS and is a graduate of Drexel University College Of Medicine (2025).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Justin Daniel Gellman Bs is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Justin Gellman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Dallas, TX 75244
- Reassigned Medicare billing, Missouri enrollment
- 412 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.
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 Gellman's NPI number?
The NPI number for Justin Gellman is 1659122182. It was assigned to this individual provider in the NPPES registry on April 1, 2024.
Where is Justin Gellman located?
Justin Gellman practices at 248 Gay Ave, Clayton, MO 63105. The listed phone number is (314) 605-9889.
What is Justin Gellman's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is Justin Gellman enrolled in Medicare?
Yes. Justin Gellman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Justin Gellman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Justin Gellman reassigns Medicare benefits to Signify Health, LLC (Dallas, TX). 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 Gellman'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 Gellman was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mr. Justin Daniel Gellman, BS · NPI 1659122182
General Practice physician in Clayton, Missouri. Individual provider, active in the CMS NPPES registry since April 1, 2024.
## Identity
- **NPI:** 1659122182 (Entity type: Individual)
- **Enumerated:** April 1, 2024
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** 2026028673 (Missouri)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 248 GAY AVE, Clayton, MO 63105-3622
- **Phone:** (314) 605-9889
## 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:** Signify Health, LLC (NPI 1689158487, Dallas, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Drexel University College Of Medicine, class of 2025
## Record status
- **NPPES last updated:** July 16, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1659122182) · Data from the CMS NPPES public registry.