DR. MARIO NELSON MD
NPI 1386628550
Physical Medicine & Rehabilitation in Valhalla, NY
About Dr. Mario Nelson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARIO NELSON MD (NPI 1386628550) is an individual physical medicine & rehabilitation provider in Valhalla, New York, licensed in New York (163147) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mario Nelson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mario Nelson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 clinicians in this Medicare group
Bronx, NY 10461
- Reassigned Medicare billing, New York enrollment
- 3 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.
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.
VALHALLA, NY 10595
VALHALLA, NY 10595
VALHALLA, NY 10595
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 Mario Nelson's NPI number?
The NPI number for Mario Nelson is 1386628550. It was assigned to this individual provider in the NPPES registry on December 1, 2005.
Where is Mario Nelson located?
Mario Nelson practices at 100 Woods Rd, Valhalla, NY 10595. The listed phone number is (914) 493-8051.
What is Mario Nelson's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Mario Nelson enrolled in Medicare?
Yes. Mario Nelson is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mario Nelson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mario Nelson reassigns Medicare benefits to 2 organizations: Westchester Medical Center Advanced Physician Services PC (Valhalla, NY) and Throgs Neck Multi Care, P.C. (Bronx, NY). 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 Mario Nelson'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 Mario Nelson was last updated on December 16, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.