NEELAN JOSEPH MARIANAYAGAM MD, PHD
NPI 1932547247
Neurological Surgery in Stanford, CA
About Neelan Joseph Marianayagam Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NEELAN JOSEPH MARIANAYAGAM MD, PHD (NPI 1932547247) is an individual neurological surgery provider in Stanford, California, licensed in California (C175135) and active in the NPI registry since June 2013. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Neelan Joseph Marianayagam Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Neelan Marianayagam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Palo Alto, CA 94306
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1588721500 (California), NPI 1629301346 (California)
- 2,460 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
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 94305 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.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
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 Neelan Marianayagam's NPI number?
The NPI number for Neelan Marianayagam is 1932547247. It was assigned to this individual provider in the NPPES registry on June 8, 2013.
Where is Neelan Marianayagam located?
Neelan Marianayagam practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.
What is Neelan Marianayagam's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Neelan Marianayagam enrolled in Medicare?
Yes. Neelan Marianayagam is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Neelan Marianayagam's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Neelan Marianayagam reassigns Medicare benefits to County Of Santa Clara (Palo Alto, 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 Neelan Marianayagam'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 Neelan Marianayagam was last updated on April 26, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.