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SHARON SUN
NPI 1215564810
Anesthesiology in Belleville, NJ

Active since March 24, 2020PECOS EnrolledAccepts Medicare Assignment
1 CLARA MAASS DR, BELLEVILLE, NJ 07109(973) 450-2000 Get Directions Write a Review

NPPES record last updated: August 26, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Sharon Sun NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SHARON SUN (NPI 1215564810) is an individual anesthesiology provider in Belleville, New Jersey, licensed in New Jersey (25MA12732300) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Clara Maass Medical Center, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1215564810
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameSHARON SUN
Location Address1 CLARA MAASS DRBelleville, NJ 07109-3550
Mailing Address1 Clara Maass DrBelleville, NJ 07109-3550 · (973) 450-2000
Phone(973) 450-2000
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 24, 2020
Last NPPES UpdateAugust 26, 2025
NPPES CertifiedAugust 26, 2025
✔ NPI 1215564810 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NJ · 25MA12732300
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
1 CLARA MAASS DR, Belleville, NJ 07109
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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

Sharon Sun 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.

PECOS PAC ID3678070448
PECOS Enrollment IDI20251008001181
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sharon Sun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Rwjbh Observation Associates LLC
6.7 mi
Emergency Medicine
94 OLD SHORT HILLS RD
Livingston, NJ 07039
  • Reassigned Medicare billing, New Jersey enrollment
  • 1,913 clinicians in this Medicare group
NPI 1760095806 (888) 724-7123

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Clara Maass Medical Center

Acute Care Hospitals · Belleville, NJ
1/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number310009
LocationOne Clara Maass DriveBelleville, NJ 07109 · Essex County
Emergency services Birthing friendly

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.

NORTHERN NEW JERSEY ANESTHESIA ASSOCIATES, LLC
Anesthesiology
1 CLARA MAASS DR
BELLEVILLE, NJ 07109
Essex County (908) 653-9399
ILONA KHASIN
Dietitian, Registered
1 CLARA MAASS DR
BELLEVILLE, NJ 07109
Essex County (973) 450-2268
RHEA COREEN LE BLANC APN
Nurse Practitioner (Critical Care Medicine)
1 CLARA MAASS DR
BELLEVILLE, NJ 07109
Essex County (973) 450-2156
CHELSEA BATELLI APN
Nurse Practitioner (Family)
1 CLARA MAASS DR
BELLEVILLE, NJ 07109
Essex County (973) 450-2000
DR. MARK ANTHONY LISTER M.D.
Ophthalmology
1 CLARA MAASS DR
BELLEVILLE, NJ 07109
Essex County (973) 844-1340
DR. CLARESE M CRENSHAW DNP, AGACNP-BC
Nurse Practitioner (Acute Care)
1 CLARA MAASS DR
BELLEVILLE, NJ 07109
Essex County (973) 450-2000
STEPHANIE C MCCARTHY R.N., A.P.N.
Nurse Practitioner (Adult Health)
1 CLARA MAASS DR
BELLEVILLE, NJ 07109
Essex County (973) 450-2000
KRISTI BARON C.R.N.A.
Nurse Anesthetist, Certified Registered
1 CLARA MAASS DR
BELLEVILLE, NJ 07109
Essex County (973) 450-2000

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 Sharon Sun's NPI number?

The NPI number for Sharon Sun is 1215564810. It was assigned to this individual provider in the NPPES registry on March 24, 2020.

Where is Sharon Sun located?

Sharon Sun practices at 1 Clara Maass Dr, Belleville, NJ 07109. The listed phone number is (973) 450-2000.

What is Sharon Sun's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Sharon Sun enrolled in Medicare?

Yes. Sharon 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 organization bills Medicare for Sharon Sun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sharon Sun reassigns Medicare benefits to Rwjbh Observation Associates LLC (Livingston, NJ). 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 Sharon Sun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Sharon Sun affiliated with any hospitals?

According to CMS data, Sharon Sun is affiliated with Clara Maass Medical Center.

When was this NPI record last updated?

The NPPES record for Sharon Sun was last updated on August 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.