Christopher Zebley, NP

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

• Christiana Hospital Hospital · Newark, DE · listed as Christiana Care Hospital

Colleagues at Christiana Care Health Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1481 clinicians in the practice; 12 are shown here.

• Dr. Caitlyn Margaret Costanzo, MD Surgery Physician · Newark, DE
• Denise M Feeley, CRNP Nurse Practitioner · Philadelphia, PA
• Andrea L. Green, FNP Registered Nurse · Newark, DE
• Mary E Kennard, LCSW Clinical Social Worker · Newark, DE
• Dr. Matthew Louis McCarter, MD Pediatric Cardiology Physician · Wilmington, DE
• Mrs. Aruna Muthukumar, ANP Adult Health Nurse Practitioner · Wilmington, DE
• Dr. Timothy James Niesen, MD Diagnostic Radiology Physician · Newark, DE
• Shraddha N Patel, PA-C Medical Physician Assistant · Newark, DE
• Arpankumar Thaker, MD Internal Medicine Physician · Newark, DE
• MS. Kathryn Reid Vosbury, PA-C Physician Assistant · Downingtown, PA
• MS. Amy Nicole Werner, PA Physician Assistant · Camden, NJ
• Tracy Ann Whelan, PA-C Physician Assistant · Newark, DE

Other providers in Wilmington

• MS. Jean R. Wadman, APN

  Individual Nurse Practitioner · NPI 1699865337

  A.i Dupont Hospital For Children 1600 Rockland Rd, Wilmington, DE 19803-3607 · (302) 651-4000

• Mrs. Melissa Haley Whitehead, PMHNP-BC

  Individual Nurse Practitioner · NPI 1437969789

  5201 W Woodmill Dr Ste 31, Wilmington, DE 19808-4068 · (302) 384-7843

• Cynthia Y Williams, NP

  Individual Nurse Practitioner · NPI 1023200318

  1400 N Washington St Wilmington Hospital Anx, Wilmington, DE 19801-1024 · (302) 255-1300

• Pan Yeung, FNP

  Individual Nurse Practitioner · NPI 1326929910

  2055 Limestone Rd Ste 101, Wilmington, DE 19808-5536 · (302) 762-6675