SION KUMAR ROY MD
NPI 1245499656
Internal Medicine in Los Angeles, CA
About Sion Kumar Roy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SION KUMAR ROY MD (NPI 1245499656) is an individual internal medicine provider in Los Angeles, California, licensed in California (A111005) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sion Kumar Roy Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Sion Roy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Santa Monica, CA 90405
- Reassigned Medicare billing, California enrollment
- 1,939 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90066 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Sion Roy's NPI number?
The NPI number for Sion Roy is 1245499656. It was assigned to this individual provider in the NPPES registry on June 2, 2008.
Where is Sion Roy located?
Sion Roy practices at 11811 Venice Blvd #313, Los Angeles, CA 90066. The listed phone number is (804) 514-8778.
What is Sion Roy's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sion Roy enrolled in Medicare?
Yes. Sion Roy is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Sion Roy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sion Roy reassigns Medicare benefits to County Of Los Angeles (Santa Monica, CA). 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 Sion Roy'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 Sion Roy was last updated on June 29, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.