DR. CLARE CHUI LING SUN MD
NPI 1144541707
Internal Medicine - Hematology in Basking Ridge, NJ
About Dr. Clare Chui Ling Sun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CLARE CHUI LING SUN MD (NPI 1144541707) is an individual hematology provider in Basking Ridge, New Jersey, licensed in Maryland (D75607) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS and is a graduate of Un Of British Columbia, Faculty Of Medicine (2010).
NPPES Registry Identity
Specialties & Licenses 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
Dr. Clare Chui Ling Sun 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 Clare Sun reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Basking Ridge, NJ 07920
- Reassigned Medicare billing, New Jersey enrollment
- 385 clinicians in this Medicare group
New York, NY 10065
- Reassigned Medicare billing, New York enrollment
- 428 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 07920 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.
BASKING RIDGE, NJ 07920
BASKING RIDGE, NJ 07920
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 Clare Sun's NPI number?
The NPI number for Clare Sun is 1144541707. It was assigned to this individual provider in the NPPES registry on June 17, 2010.
Where is Clare Sun located?
Clare Sun practices at 136 Mountainview Blvd, Basking Ridge, NJ 07920. The listed phone number is (908) 466-5980.
What is Clare Sun's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.
Is Clare Sun enrolled in Medicare?
Yes. Clare Sun 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 Clare Sun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Clare Sun reassigns Medicare benefits to 2 organizations: Memorial Sloan Kettering Cancer Center At Basking Ridge New Jersey (Basking Ridge, NJ) and Memorial Hematology Lymphoma Group (New York, 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 Clare Sun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Clare Sun was last updated on September 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Dr. Clare Chui Ling Sun, MD · NPI 1144541707
Hematology physician in Basking Ridge, New Jersey. Individual provider, active in the CMS NPPES registry since June 17, 2010.
## Identity
- **NPI:** 1144541707 (Entity type: Individual)
- **Enumerated:** June 17, 2010
- **Primary specialty:** Internal Medicine - Hematology · taxonomy 207RH0000X
- **State license:** D75607 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 136 MOUNTAINVIEW BLVD, Basking Ridge, NJ 07920-3444
- **Phone:** (908) 466-5980
## 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): Memorial Sloan Kettering Cancer Center At Basking Ridge New Jersey (NPI 1184637886, Basking Ridge, NJ); Memorial Hematology Lymphoma Group (NPI 1891766366, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Un Of British Columbia, Faculty Of Medicine, class of 2010
## Record status
- **NPPES last updated:** September 16, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1144541707) · Data from the CMS NPPES public registry.