DR. MARGARET CHEN MD
NPI 1407963192
Surgery - Surgical Oncology in Ny, NY
About Dr. Margaret Chen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARGARET CHEN MD (NPI 1407963192) is an individual surgical oncology provider in Ny, New York, licensed in New York (222793) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, is affiliated with North Shore University Hospital, and maintains a secondary practice location in Ny.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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
Dr. Margaret Chen Md 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 Reassignments
2Medicare enrollment records show Margaret Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 124 clinicians in this Medicare group
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Optum Medical Care PC
- 1,601 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 10
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
North Shore University Hospital
Acute Care Hospitals · Manhasset, NYSt Francis Hospital - The Heart Center
Acute Care Hospitals · Roslyn, NYLong Island Jewish Medical Center
Acute Care Hospitals · New Hyde Park, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10032 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
NEW YORK, NY 10032
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 Margaret Chen's NPI number?
The NPI number for Margaret Chen is 1407963192. It was assigned to this individual provider in the NPPES registry on August 25, 2006.
Where is Margaret Chen located?
Margaret Chen practices at 21 Audubon Avenue 2nd Floor, Room 209, Ny, NY 10032. The listed phone number is (718) 670-1185.
What is Margaret Chen's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.
Is Margaret Chen enrolled in Medicare?
Yes. Margaret Chen 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 organizations bill Medicare for Margaret Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Chen reassigns Medicare benefits to 2 organizations: The Trustees Of Columbia University In The City Of New York (New York, NY) and Optum Medical Care, P.C. (Mount Kisco, 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 Margaret Chen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Margaret Chen affiliated with any hospitals?
According to CMS data, Margaret Chen is affiliated with North Shore University Hospital, St Francis Hospital - The Heart Center and Long Island Jewish Medical Center.
When was this NPI record last updated?
The NPPES record for Margaret Chen was last updated on April 20, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Margaret Chen, MD · NPI 1407963192
Surgical Oncology physician in Ny, New York. Individual provider, active in the CMS NPPES registry since August 25, 2006.
## Identity
- **NPI:** 1407963192 (Entity type: Individual)
- **Enumerated:** August 25, 2006
- **Primary specialty:** Surgery - Surgical Oncology · taxonomy 2086X0206X
- **State license:** 222793 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 21 AUDUBON AVENUE, 2ND FLOOR, ROOM 209, Ny, NY 10032-3720
- **Phone:** (718) 670-1185 · **Fax:** (718) 670-2312
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): The Trustees Of Columbia University In The City Of New York (NPI 1265598783, New York, NY); Optum Medical Care, P.C. (NPI 1982643003, Mount Kisco, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** April 20, 2018
- **Other identifiers:** Medicaid 02198061 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1407963192) · Data from the CMS NPPES public registry.