ALAMELU SUBBU NAGAPPAN MD
NPI 1619950524
Anesthesiology in Riverside, CA
About Alamelu Subbu Nagappan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALAMELU SUBBU NAGAPPAN MD (NPI 1619950524) is an individual anesthesiology provider in Riverside, California, licensed in California (A49548) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alamelu Subbu Nagappan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Alamelu Nagappan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Riverside, CA 92506
- Reassigned Medicare billing, California enrollment
- 27 clinicians in this Medicare group
Riverside, CA 92506
- Reassigned Medicare billing, California enrollment
- 349 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.
Other Providers at the Same Location NPPES 11
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 Alamelu Nagappan's NPI number?
The NPI number for Alamelu Nagappan is 1619950524. It was assigned to this individual provider in the NPPES registry on November 23, 2005.
Where is Alamelu Nagappan located?
Alamelu Nagappan practices at 7160 Brockton Ave, Riverside, CA 92506. The listed phone number is (951) 782-3801.
What is Alamelu Nagappan's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Alamelu Nagappan enrolled in Medicare?
Yes. Alamelu Nagappan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alamelu Nagappan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alamelu Nagappan reassigns Medicare benefits to 2 organizations: Riverside Anesthesia Partners Inc (Riverside, CA) and Riverside Medical Clinic, Inc (Riverside, CA). 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 Alamelu Nagappan'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 Alamelu Nagappan was last updated on April 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.