DR. ARUN C NAIR M.D.
NPI 1215220660
Emergency Medicine in Columbia, MD
About Dr. Arun C Nair M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ARUN C NAIR M.D. (NPI 1215220660) is an individual emergency medicine provider in Columbia, Maryland, licensed in Maryland (M81676) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Arun C Nair M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Arun Nair reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Killeen, TX 76549
- Reassigned Medicare billing, Texas enrollment
- 214 clinicians in this Medicare group
Austin, TX 78705
- Reassigned Medicare billing, Texas enrollment
- 547 clinicians in this Medicare group
San Antonio, TX 78216
- Reassigned Medicare billing, Texas enrollment
- 688 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21044 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.
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 Arun Nair's NPI number?
The NPI number for Arun Nair is 1215220660. It was assigned to this individual provider in the NPPES registry on May 18, 2011.
Where is Arun Nair located?
Arun Nair practices at 5755 Cedar Ln, Columbia, MD 21044. The listed phone number is (410) 740-7890.
What is Arun Nair's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Arun Nair enrolled in Medicare?
Yes. Arun Nair is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Arun Nair's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arun Nair reassigns Medicare benefits to 3 organizations: Emergency Associates Of Central Texas PA (Killeen, TX), Longhorn Emergency Medical Associates PA (Austin, TX) and Ipc Healthcare Services Of Texas, PLLC (San Antonio, TX). 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 Arun Nair's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Arun Nair accept?
Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Arun Nair 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 Arun Nair was last updated on June 23, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.