HENDRIK SY MD
NPI 1649731035
Student in an Organized Health Care Education/Training Program in New York, NY
About Hendrik Sy Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HENDRIK SY MD (NPI 1649731035) is an individual student in an organized health care education/training program in New York, New York and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Montefiore Medical Center, and is a graduate of Other (2015).
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)
Hendrik Sy Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Hendrik Sy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10025
- Reassigned Medicare billing, New York enrollment
- 5,251 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Montefiore Medical Center
Acute Care Hospitals · Bronx, NYOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
NEW YORK, NY 10019
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 Hendrik Sy's NPI number?
The NPI number for Hendrik Sy is 1649731035. It was assigned to this individual provider in the NPPES registry on March 27, 2019.
Where is Hendrik Sy located?
Hendrik Sy practices at 1000 10th Ave Fl 3, New York, NY 10019. The listed phone number is (212) 259-6777.
What is Hendrik Sy's specialty?
The primary specialty registered for this NPI is Student in an Organized Health Care Education/Training Program with taxonomy code 390200000X.
Is Hendrik Sy enrolled in Medicare?
Yes. Hendrik Sy is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Hendrik Sy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hendrik Sy reassigns Medicare benefits to Montefiore Medical Center (New York, 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 Hendrik Sy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Hendrik Sy affiliated with any hospitals?
According to CMS data, Hendrik Sy is affiliated with Montefiore Medical Center.
When was this NPI record last updated?
The NPPES record for Hendrik Sy was last updated on March 27, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Hendrik Sy, MD · NPI 1649731035
Student in an Organized Health Care Education/Training Program provider in New York, New York. Individual provider, active in the CMS NPPES registry since March 27, 2019.
## Identity
- **NPI:** 1649731035 (Entity type: Individual)
- **Enumerated:** March 27, 2019
- **Primary specialty:** Student in an Organized Health Care Education/Training Program · taxonomy 390200000X
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 10TH AVE FL 3, New York, NY 10019-1147
- **Phone:** (212) 259-6777
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Montefiore Medical Center (NPI 1760288278, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** March 27, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1649731035) · Data from the CMS NPPES public registry.