CLAUDE SY M.D.
NPI 1437135381
Internal Medicine in West Seneca, NY
About Claude Sy M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CLAUDE SY M.D. (NPI 1437135381) is an individual internal medicine provider in West Seneca, New York, licensed in New York (208192) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Sisters Of Charity Hospital, and is a graduate of Other (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 10
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Claude Sy M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Claude Sy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
West Seneca, NY 14224
- Reassigned Medicare billing, New York enrollment
- 22 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 12
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sisters Of Charity Hospital
Acute Care Hospitals · Buffalo, NYMercy Hospital Of Buffalo
Acute Care Hospitals · Buffalo, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 14224 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Claude Sy's NPI number?
The NPI number for Claude Sy is 1437135381. It was assigned to this individual provider in the NPPES registry on December 21, 2005.
Where is Claude Sy located?
Claude Sy practices at 1026 Union Rd, West Seneca, NY 14224. The listed phone number is (716) 712-0851.
What is Claude Sy's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Claude Sy enrolled in Medicare?
Yes. Claude Sy is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Claude Sy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Claude Sy reassigns Medicare benefits to Southgate Medical Group,llp (West Seneca, NY). 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 Claude Sy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Claude Sy affiliated with any hospitals?
According to CMS data, Claude Sy is affiliated with Sisters Of Charity Hospital and Mercy Hospital Of Buffalo.
When was this NPI record last updated?
The NPPES record for Claude Sy was last updated on July 23, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.