John Anthony Przybylski Jr., MHS, PA-C

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.

• Jonathan Ariano, AGACNP-BC Registered Nurse · Newark, DE
• Olivia Castro, DO Family Medicine Physician · Smyrna, DE
• Dr. Michele Nicole Fiorentino, MD Surgery Physician · Newark, DE
• Breanne Callan Grove, PA-C Physician Assistant · Newark, DE
• Matthew Holden, LSW Social Worker · Wilmington, DE
• Jill Rachel Mermagen, PA-C Surgical Physician Assistant · Newark, DE
• Youngja Moore, NP Registered Nurse · Newark, DE
• Dr. Kelli Ann Quercetti, DO Otolaryngology/Facial Plastic Surgery Physician · Newark, DE
• Declan Quigley, MD Internal Medicine Physician · Newark, DE
• Tea Ramishvili, MD Internal Medicine Physician · Newark, DE
• Dr. Rosemary Szczechowski, PSYD Clinical Psychologist · Newark, DE
• Sarah Barat Teaney, LCSW Clinical Social Worker · Wilmington, DE

Other providers in Newark

• Gianna Pomykacz, PA

  Individual Physician Assistant · NPI 1013631142

  4745 Ogletown Stanton Rd Ste 225, Newark, DE 19713-1387 · (302) 731-2888

• Jordan Nari Pressley, PA-C

  Individual Physician Assistant · NPI 1952283863

  4755 Ogletown Stanton Rd Ste 2670, Newark, DE 19718-2200 · (302) 733-2438

• Jennifer Pretel

  Individual Physician Assistant · NPI 1346074390

  537 Stanton Christiana Rd Ste 203, Newark, DE 19713-2148 · (302) 225-2380

• Kathryn Provonche, PA

  Individual Physician Assistant · NPI 1790236644

  4755 Ogletown Stanton Rd Ste 5A43, Newark, DE 19718-2200 · (302) 623-0188

• Mr. Bernard R. Racey, PA-C

  Individual Physician Assistant · NPI 1346429875

  4745 Ogletown Stanton Rd Map 1 Ste 128, Newark, DE 19713-2067 · (302) 733-1000

• Taylor Elizabeth Raum, PA-C

  Individual Physician Assistant · NPI 1376190009

  324 E Main St, Newark, DE 19711-7150 · (302) 738-4300

• Lena Ravenell

  Individual Physician Assistant · NPI 1215701594

  4755 Ogletown Stanton Rd Ste 5A43, Newark, DE 19718-2200 · (302) 623-0188

• Brooke Elizabeth Reichenbach, PA-C

  Individual Physician Assistant · NPI 1871115212

  620 Stanton Christiana Rd Ste 302, Newark, DE 19713-2135 · (302) 660-7333