NIVEEN K ABDELMESSIH, MD, INC
NPI 1639355282
Clinic/Center - Primary Care in Glendale, CA
About Niveen K Abdelmessih, Md, Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NIVEEN K ABDELMESSIH, MD, INC (NPI 1639355282) is a healthcare organization registered as a primary care in Glendale, California and active in the NPI registry since January 2008. The organization lists Niveen Abdelmessih, Owner/md, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Niveen K Abdelmessih, Md, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Niveen K Abdelmessih, MD, Inc, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Niveen K Abdelmessih, MD, Inc's NPI number?
The NPI number for Niveen K Abdelmessih, MD, Inc is 1639355282. It was assigned to this organization in the NPPES registry on January 14, 2008.
Where is Niveen K Abdelmessih, MD, Inc located?
Niveen K Abdelmessih, MD, Inc is located at 1808 Verdugo Blvd Suite 316, Glendale, CA 91208. The listed phone number is (818) 430-5650.
What is Niveen K Abdelmessih, MD, Inc's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Niveen K Abdelmessih, MD, Inc enrolled in Medicare?
Yes. Niveen K Abdelmessih, MD, Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Niveen K Abdelmessih, MD, Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Family Practice) reassigns their Medicare billing to Niveen K Abdelmessih, MD, Inc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Niveen K Abdelmessih, MD, Inc was last updated on July 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Niveen K Abdelmessih, Md, Inc · NPI 1639355282
Primary Care organization in Glendale, California. Organization record, active in the CMS NPPES registry since January 14, 2008.
## Identity
- **NPI:** 1639355282 (Entity type: Organization)
- **Enumerated:** January 14, 2008
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Organization subpart:** No
- **Authorized official:** Niveen Abdelmessih, OWNER/MD
## Practice location
- **Address:** 1808 VERDUGO BLVD, SUITE 316, Glendale, CA 91208
- **Phone:** (818) 430-5650
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Family Practice) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 16, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1639355282) · Data from the CMS NPPES public registry.