MRS. DORIS CHAN D.O.
NPI 1508109943
Internal Medicine - Interventional Cardiology in Staten Island, NY
About Mrs. Doris Chan D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. DORIS CHAN D.O. (NPI 1508109943) is an individual interventional cardiology provider in Staten Island, New York, licensed in New York (303895) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS, is affiliated with Maimonides Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
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
Mrs. Doris Chan D.o. 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
4Medicare enrollment records show Doris Chan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11220
- Reassigned Medicare billing, New York enrollment
- 616 clinicians in this Medicare group
Brooklyn, NY 11236
- Reassigned Medicare billing, New York enrollment
- 27 clinicians in this Medicare group
New Hyde Park, NY 11040
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 7,712 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 15
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.
Maimonides Medical Center
Acute Care Hospitals · Brooklyn, NYNyu Langone Hospitals
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10304 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 6
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 Doris Chan's NPI number?
The NPI number for Doris Chan is 1508109943. It was assigned to this individual provider in the NPPES registry on April 4, 2013.
Where is Doris Chan located?
Doris Chan practices at 65 Cromwell Ave, Staten Island, NY 10304. The listed phone number is (718) 667-8100.
What is Doris Chan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Doris Chan enrolled in Medicare?
Yes. Doris Chan 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 Doris Chan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Doris Chan reassigns Medicare benefits to 4 organizations: Nyu Langone Hospitals (Brooklyn, NY), First Medcare, Inc. (Brooklyn, NY), North Shore - Lij Medical PC (New Hyde Park, NY) and New York University (Boynton Beach, FL). 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 Doris Chan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Doris Chan affiliated with any hospitals?
According to CMS data, Doris Chan is affiliated with Maimonides Medical Center and Nyu Langone Hospitals.
When was this NPI record last updated?
The NPPES record for Doris Chan was last updated on April 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.