DR. WILLIAM Y SHI MD PHD
NPI 1831721430
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Manhasset, NY
About Dr. William Y Shi Md Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM Y SHI MD PHD (NPI 1831721430) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Manhasset, New York, licensed in New York (315805) and active in the NPI registry since February 2020. He is enrolled in Medicare PECOS, is affiliated with North Shore University Hospital, and maintains a secondary practice location in New York.
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. William Y Shi Md Phd 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 William Shi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 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 8
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.
North Shore University Hospital
Acute Care Hospitals · Manhasset, NYPlainview Hospital
Acute Care Hospitals · Plainview, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11030 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MANHASSET, NY 11030
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 William Shi's NPI number?
The NPI number for William Shi is 1831721430. It was assigned to this individual provider in the NPPES registry on February 11, 2020.
Where is William Shi located?
William Shi practices at North Shore University Hospital Cardiovascular Surgery, 300 Community Drive, Manhasset, NY 11030. The listed phone number is (617) 543-6696.
What is William Shi's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is William Shi enrolled in Medicare?
Yes. William Shi 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 William Shi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Shi reassigns Medicare benefits to North Shore-Lij Medical PC (Great Neck, 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 William Shi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Shi affiliated with any hospitals?
According to CMS data, William Shi is affiliated with North Shore University Hospital and Plainview Hospital.
When was this NPI record last updated?
The NPPES record for William Shi was last updated on January 18, 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.
# Dr. William Y Shi, MD PHD · NPI 1831721430
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in Manhasset, New York. Individual provider, active in the CMS NPPES registry since February 11, 2020.
## Identity
- **NPI:** 1831721430 (Entity type: Individual)
- **Enumerated:** February 11, 2020
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** 315805 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** NORTH SHORE UNIVERSITY HOSPITAL, CARDIOVASCULAR SURGERY, 300 COMMUNITY DRIVE, Manhasset, NY 11030
- **Phone:** (617) 543-6696
## 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:** North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** January 18, 2023
- **Other identifiers:** Other 315805 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1831721430) · Data from the CMS NPPES public registry.