DR. SYED AHMED ATHAR M.D.
NPI 1508038597
Internal Medicine - Interventional Cardiology in Loma Linda, CA
About Dr. Syed Ahmed Athar M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SYED AHMED ATHAR M.D. (NPI 1508038597) is an individual interventional cardiology provider in Loma Linda, California, licensed in California (A108169) and active in the NPI registry since March 2008. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 2
Other Identifiers 1
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. Syed Ahmed Athar M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Syed Athar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Russellville, AR 72801
- Reassigned Medicare billing, Arkansas enrollment
- Medicare enrollment name: St Marys Physician Services LLC
- 136 clinicians in this Medicare group
Portage, IN 46368
- Reassigned Medicare billing, Indiana enrollment
- 177 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 92357 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
LOMA LINDA, CA 92357
LOMA LINDA, CA 92357
LOMA LINDA, CA 92357
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 Syed Athar's NPI number?
The NPI number for Syed Athar is 1508038597. It was assigned to this individual provider in the NPPES registry on March 31, 2008. The provider is also known as Ahmed Athar M.D..
Where is Syed Athar located?
Syed Athar practices at 11201 Benton St, Loma Linda, CA 92357. The listed phone number is (909) 583-6097.
What is Syed Athar's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Syed Athar enrolled in Medicare?
Yes. Syed Athar is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Syed Athar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Syed Athar reassigns Medicare benefits to 2 organizations: St Mary's Physician Services LLC (Russellville, AR) and Porter Physician Services LLC (Portage, IN). 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 Syed Athar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Syed Athar accept?
Health plans from Arkansas Blue Cross and Blue Shield, Health Advantage and Octave list Syed Athar 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 Syed Athar was last updated on June 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.