SANDRA L SANTIAGO MD
NPI 1114098555
Radiology - Diagnostic Radiology in Mount Kisco, NY
About Sandra L Santiago Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SANDRA L SANTIAGO MD (NPI 1114098555) is an individual diagnostic radiology provider in Mount Kisco, New York, licensed in New York (218833) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of Yale University School Of Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Sandra L Santiago Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Sandra Santiago reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Optum Medical Care PC
- 1,601 clinicians in this Medicare group
Jericho, NY 11753
- Reassigned Medicare billing, New York enrollment
- 413 clinicians in this Medicare group
New Hyde Park, NY 11042
- Reassigned Medicare billing, New Jersey enrollment
- 417 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 61
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 10549 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 Sandra Santiago's NPI number?
The NPI number for Sandra Santiago is 1114098555. It was assigned to this individual provider in the NPPES registry on November 9, 2006.
Where is Sandra Santiago located?
Sandra Santiago practices at Mount Kisco Medical Group 90 South Bedford Road, Mount Kisco, NY 10549. The listed phone number is (914) 241-1050.
What is Sandra Santiago's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Sandra Santiago enrolled in Medicare?
Yes. Sandra Santiago is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Sandra Santiago's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sandra Santiago reassigns Medicare benefits to 3 organizations: Optum Medical Care, P.C. (Mount Kisco, NY), Optum Urgent Care, PLLC (Jericho, NY) and Optum Medical Care Of New Jersey PC (New Hyde Park, 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 Sandra Santiago'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 Sandra Santiago was last updated on August 5, 2016. 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.