SUNG KWON M.D.
NPI 1447458484
Surgery - Surgical Oncology in New Haven, CT
About Sung Kwon M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUNG KWON M.D. (NPI 1447458484) is an individual surgical oncology provider in New Haven, Connecticut, licensed in Connecticut (1.084424) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, is affiliated with Roger Williams Medical Center, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2007).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Accepted Insurance
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
Sung Kwon 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 Reassignments
6Medicare enrollment records show Sung Kwon reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 clinicians in this Medicare group
Englewood, NJ 07631
- Reassigned Medicare billing, New Jersey enrollment
- 149 clinicians in this Medicare group
Providence, RI 02908
- Reassigned Medicare billing, Rhode Island enrollment
- 96 clinicians in this Medicare group
Providence, RI 02908
- Reassigned Medicare billing, Rhode Island enrollment
- 162 clinicians in this Medicare group
Lowville, NY 13367
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Lewis County
- 50 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
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.
Roger Williams Medical Center
Acute Care Hospitals · Providence, RIOur Lady Of Fatima Hospital
Acute Care Hospitals · North Providence, RIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06519 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Sung Kwon's NPI number?
The NPI number for Sung Kwon is 1447458484. It was assigned to this individual provider in the NPPES registry on July 10, 2007. The provider is also known as Steve Kwon MD Mph.
Where is Sung Kwon located?
Sung Kwon practices at 35 Park St, New Haven, CT 06519. The listed phone number is (203) 785-3577.
What is Sung Kwon's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.
Is Sung Kwon enrolled in Medicare?
Yes. Sung Kwon 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 Sung Kwon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sung Kwon reassigns Medicare benefits to 6 organizations: Yale University (New Haven, CT), Trustees Of Columbia University In The City Of New York (New York, NY), Columbia Doctors Of New Jersey, P. C. (Englewood, NJ), Chartercare Roger Williams Medical Center (Providence, RI), Prospect Chartercare Rwmc, LLC (Providence, RI) and 1 more organization, listed in the Medicare section above. 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 Sung Kwon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sung Kwon accept?
Health plans from Oscar Health list Sung Kwon as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Sung Kwon affiliated with any hospitals?
According to CMS data, Sung Kwon is affiliated with Roger Williams Medical Center and Our Lady Of Fatima Hospital.
When was this NPI record last updated?
The NPPES record for Sung Kwon was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.
# Sung Kwon, M.D. · NPI 1447458484
Surgical Oncology physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since July 10, 2007.
## Identity
- **NPI:** 1447458484 (Entity type: Individual)
- **Enumerated:** July 10, 2007
- **Primary specialty:** Surgery - Surgical Oncology · taxonomy 2086X0206X
- **State license:** 1.084424 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 35 PARK ST, New Haven, CT 06519-1110
- **Phone:** (203) 785-3577
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Yale University (NPI 1124148887, New Haven, CT); Trustees Of Columbia University In The City Of New York (NPI 1508266347, New York, NY); Columbia Doctors Of New Jersey, P. C. (NPI 1952224370, Englewood, NJ); Chartercare Roger Williams Medical Center (NPI 1649009507, Providence, RI); Prospect Chartercare Rwmc, LLC (NPI 1285059287, Providence, RI); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2007
## Record status
- **NPPES last updated:** June 23, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1447458484) · Data from the CMS NPPES public registry.