NASSERI CLINIC OF ARTHRITIC & RHEUMATIC DISEASES LLC
NPI 1821286766
Non-Pharmacy Dispensing Site in Catonsville, MD
About Nasseri Clinic Of Arthritic & Rheumatic Diseases Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NASSERI CLINIC OF ARTHRITIC & RHEUMATIC DISEASES LLC (NPI 1821286766) is a healthcare organization registered as a non-pharmacy dispensing site in Catonsville, Maryland and active in the NPI registry since October 2007. The organization lists Nasser Nasseri, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 4
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Nasseri Clinic Of Arthritic & Rheumatic Diseases Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
9Medicare enrollment records show 9 clinicians reassign Medicare billing to Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC, which bills Medicare for the services they deliver. Of these, 7 practice at this address and 9 within 10 miles. They are listed nearest first.
Clinicians, nearest first (9)
Catonsville, MD 21228
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 Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC's NPI number?
The NPI number for Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC is 1821286766. It was assigned to this organization in the NPPES registry on October 4, 2007.
Where is Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC located?
Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC is located at 700 Geipe Rd Suite 200, Catonsville, MD 21228. The listed phone number is (410) 744-0661.
What is Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC's specialty?
The primary specialty registered for this NPI is Non-Pharmacy Dispensing Site with taxonomy code 332900000X.
Is Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC enrolled in Medicare?
Yes. Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 9 clinicians in 3 Medicare specialties reassign their Medicare billing to Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC. 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. The largest specialties are Nurse Practitioner (4), Rheumatology (3) and Internal Medicine (2). Of these, 7 practice at this address and 9 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Absolute Total Care, Ambetter from Arkansas Health & Wellness and Ambetter from Buckeye Health Plan and 21 other insurers list Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC 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.
When was this NPI record last updated?
The NPPES record for Nasseri Clinic Of Arthritic & Rheumatic Diseases LLC was last updated on December 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Nasseri Clinic Of Arthritic & Rheumatic Diseases Llc · NPI 1821286766
Non-Pharmacy Dispensing Site organization in Catonsville, Maryland. Organization record, active in the CMS NPPES registry since October 4, 2007.
## Identity
- **NPI:** 1821286766 (Entity type: Organization)
- **Enumerated:** October 4, 2007
- **Primary specialty:** Non-Pharmacy Dispensing Site · taxonomy 332900000X
- **Organization subpart:** No
- **Authorized official:** Nasser Nasseri, PRESIDENT
## Practice location
- **Address:** 700 GEIPE RD, SUITE 200, Catonsville, MD 21228-4147
- **Phone:** (410) 744-0661 · **Fax:** (410) 744-8036
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 9 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (4), Rheumatology (3), Internal Medicine (2); 7 practice at this address and 9 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 17, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1821286766) · Data from the CMS NPPES public registry.